The TASI TDA Series Digital Adjustable DC Power Supply is a professional laboratory power supply designed for high-precision output, reliable protection and convenient operation. Equipped with a four-digit LED display, the series provides real-time monitoring of output voltage, current and power, while supporting precise digital adjustment of voltage and current settings. Featuring built-in over voltage protection (OVP), over current protection (OCP), power-off parameter memory, key lock function and automatic switching between constant voltage (CV) and constant current (CC) modes, the TDA Series provides stable and safe DC power output for various testing and development applications. As a high-performance Adjustable DC Power Supply, Variable DC Power Supply, DC Bench Power Supply, Laboratory Power Supply and Electronic Test Power Supply, the TDA Series is widely used in electronics development, product testing, maintenance repair, industrial production and educational laboratories. Its optimized cooling design, low temperature drift and stable output performance ensure reliable operation during continuous testing. The series is suitable for universities, research laboratories, electronics manufacturing plants, automation systems, renewable energy development, instrumentation testing, repair workshops, security systems, robotics projects and maker applications. It provides precise and stable DC power for microcontrollers, circuit boards, sensors, control modules, battery protection boards and various electronic devices.

1

The TA621A Digital Thermo-Hygrometer is a high-accuracy, low-power, and portable environmental measurement instrument, also known as a digital temperature and humidity meter, humidity tester, thermo hygrometer, humidity gauge, environmental humidity monitor, dew point meter, and wet bulb thermometer. Equipped with a high-performance GXHTC3 temperature and humidity sensor, dedicated signal processing chip, and precision operational amplifier technology, it delivers fast response, stable performance, and accurate measurement of ambient temperature and relative humidity, while automatically calculating dew point temperature (DP) and wet bulb temperature (WB). The TA621A digital thermo-hygrometer features high/low temperature and humidity alarms, data hold, maximum/minimum/average value recording, and ℃/℉ unit conversion functions. Its clear digital display and compact handheld design make it ideal for quick environmental inspections and continuous monitoring. With reliable measurement performance and easy operation, the TA621A is widely used in warehouse storage, cold chain logistics, archive management, pharmaceutical storage, laboratories, cleanrooms, manufacturing workshops, server rooms, smart buildings, greenhouses, agricultural production, livestock farms, educational laboratories, and residential environmental monitoring. Whether used for warehouse climate control, industrial process monitoring, equipment room inspection, laboratory research, building environment evaluation, or daily indoor comfort management, the TA621A provides an efficient and accurate solution for temperature and humidity measurement.

The TA506 Series Handheld Non-Contact Laser Digital Tachometer, also known as a laser tachometer, optical tachometer, RPM meter, or rotational speed tester, is designed for fast and accurate measurement of rotating equipment speed. Using advanced laser reflection technology, the instrument measures the rotational speed of motors, fans, pumps, shafts, gears, rollers, and other rotating machinery without physical contact. With a wide measuring range of 3 to 100,000 RPM, the TA506 series allows operators to perform speed inspections without stopping equipment operation, improving workplace safety and maintenance efficiency. Both TA506A and TA506B models provide reliable RPM measurement performance, while the TA506B features Bluetooth wireless data transmission, enabling convenient data recording, monitoring, and analysis through smart devices. Equipped with a five-digit high-resolution display, the tachometer supports data hold, maximum/minimum value recording, and backlight illumination for clear readings in various industrial environments. Its compact handheld design makes it ideal for portable inspection, equipment commissioning, and routine maintenance tasks. The TA506 Series Digital Tachometer is widely used in machinery manufacturing, motor production, power generation, steel and metallurgy, petrochemical plants, aviation equipment, HVAC systems, fan manufacturing, automation equipment, warehouse machinery, and industrial maintenance applications. It is suitable for motor speed testing, fan performance verification, pump monitoring, production line quality control, preventive maintenance, and troubleshooting of rotating equipment.

The TA8315 Series True RMS Digital Clamp Meters are designed for professional electrical maintenance, industrial troubleshooting, HVAC servicing, and electrical installation. The series includes TA8315A, TA8315B, TA8315C, TA8315D, and TA8315E, offering True RMS measurement for accurate testing of both standard and non-linear electrical signals generated by variable frequency drives, motors, and modern electronic equipment. The series measures up to 600A AC current and 750V AC/DC voltage, while providing essential functions including resistance, capacitance, continuity, and diode testing. Depending on the model, additional features such as Non-Contact Voltage (NCV) detection, frequency, duty cycle, K-type temperature measurement, and square wave output are available, making the series suitable for applications ranging from routine electrical maintenance to advanced industrial diagnostics. A 5999/6000-count LCD display with backlight and built-in flashlight ensures clear visibility in dark electrical panels and maintenance environments. Data Hold and Relative Measurement functions simplify data recording and troubleshooting during field service. Designed in compliance with IEC safety standards, the TA8315 Series features CAT III safety protection and full-range overload protection for reliable and safe operation. Automatic ranging, auto power-off, and low battery indication improve convenience and extend battery life. Combining accuracy, versatility, and safety, the TA8315 Series is an ideal solution for electricians, maintenance engineers, industrial technicians, HVAC professionals, and electrical installers.

TASI TDF Series High Power Programmable DC Power Supply is a precision intelligent DC power source designed for R&D laboratories, industrial manufacturing, and automated testing applications. Also known as programmable power supply, programmable DC source, laboratory DC power supply, digital DC power supply, adjustable DC power supply, and high power DC supply, this series provides accurate voltage and current control for various electronic testing environments. Featuring a four-window LED digital display, the power supply simultaneously shows output voltage, current, power, and operating time, allowing engineers to monitor test conditions in real time and record long-duration aging and reliability test data accurately. The TDF Series supports continuous voltage and current adjustment, six groups of preset parameter storage (M1-M6), and hardware LIST programmable sequence output. Users can create multi-step voltage/current profiles for automated aging tests, cycling tests, reliability verification, and complex load simulation. Equipped with an RS485 communication interface supporting Modbus protocol, it can integrate with PCs, PLC systems, and automated production lines for remote control, data acquisition, and intelligent manufacturing applications. The power supply incorporates five comprehensive protection functions including over voltage protection (OVP), over current protection (OCP), over power protection, over temperature protection, and short circuit protection. Combined with remote SENSE voltage compensation technology, it maintains accurate output voltage even during high-current and long-cable testing conditions. Additional functions such as parameter memory, key lock, and power-on status saving improve operation safety and testing efficiency. With multiple models covering output ranges from 0-15V to 0-120V, maximum current up to 100A, and power output up to 3600W, the TDF Series adopts intelligent forced-air cooling technology to ensure stable operation, low ripple output, excellent load regulation, and reliable long-term performance. It is widely used in lithium battery pack testing, energy storage system development, automotive electronics testing, motor drive verification, industrial automation equipment commissioning, robotics development, railway electronics testing, aerospace electronics validation, university laboratories, and scientific research facilities. The TDF Series is an ideal high power programmable DC power solution for engineers, production testing lines, and quality inspection departments.

The TASI TA812 Series Smart Digital Clamp Meter is a multifunctional electrical testing instrument integrating AC current, AC/DC voltage, resistance, capacitance, frequency, continuity, diode testing, NCV non-contact voltage detection and other measurement functions. Also known as a digital clamp meter, smart clamp multimeter, current clamp meter, clamp-style multimeter, or auto-ranging electrical tester, the TA812 Series includes TA812A and TA812B models, featuring smart auto-ranging technology for fast and convenient electrical measurements without frequent manual range selection. Equipped with True RMS measurement technology, the TA812 Series provides accurate readings on distorted and non-sinusoidal waveforms generated by variable frequency drives, motor control systems, UPS power supplies, switching power supplies and other nonlinear loads. With measurement capability up to 600A AC current and 600V AC/DC voltage, it is suitable for industrial electrical inspection, power distribution maintenance, automation equipment troubleshooting, electrical system commissioning and renewable energy applications. The TA812A is a practical smart clamp meter designed for general electrical testing, supporting AC/DC voltage, AC current, resistance, capacitance, frequency, continuity testing, diode testing, NCV detection and live/neutral wire identification. It is widely used in residential electrical installation, building maintenance, appliance repair, property management and low-voltage system inspection. The upgraded TA812B adds K-type thermocouple temperature measurement, enabling users to monitor the operating temperature of motors, electrical cabinets, electronic components, HVAC systems and industrial equipment for preventive maintenance. Featuring a 6000-count VA color display with backlight and front LED flashlight, the TA812 Series ensures clear visibility in dark environments such as electrical cabinets, underground cable rooms, maintenance areas and equipment interiors. Data hold and MAX/MIN recording functions allow technicians to capture critical electrical parameters during troubleshooting and perform efficient fault analysis. Designed according to IEC electrical safety standards, the TA812 Series provides CAT III 600V safety protection, full-range overload protection, reverse high-voltage protection and NCV non-contact voltage detection for safer operation. Its lightweight ergonomic housing and flexible clamp jaw design allow easy measurement in narrow spaces and complex wiring environments. With intelligent operation, reliable safety features and versatile measurement capabilities, the TASI TA812 Smart Clamp Meter Series is widely applied in electrical installation, industrial maintenance, automation systems, mechanical equipment servicing, HVAC inspection, renewable energy systems, building engineering, facility management, technical training and electronic repair applications. It is an essential diagnostic tool for electricians, technicians and maintenance professionals.

The TA811 Series Digital Clamp Meter is a professional handheld electrical testing instrument, also known as a clamp multimeter, current clamp meter, AC/DC current tester, electrical measurement meter, and electrician testing tool. Designed according to IEC61010 international safety standards with CAT III 600V protection rating, the series features a high-resolution LCD display, auto-ranging measurement and comprehensive electrical testing functions for efficient troubleshooting and maintenance. The TA811 Series includes three models: TA811A, TA811B and TA811C, providing different levels of measurement capability for various professional applications. All models support AC current, AC/DC voltage, resistance, capacitance, continuity buzzer, diode testing, NCV non-contact voltage detection, data hold, maximum/minimum value recording, backlight and LED flashlight functions. The TA811B adds frequency, duty cycle, K-type temperature measurement and high/low impedance voltage detection, while the TA811C further integrates DC current measurement and ZERO calibration function for advanced DC circuit and inverter system testing. With its clamp-style current measurement design, the TA811 Series allows users to measure current without interrupting the circuit, making it widely suitable for residential electrical installation, commercial building maintenance, appliance repair, HVAC service, industrial equipment inspection, factory electrical systems, automation control troubleshooting, motor and inverter maintenance, EV charging station service, renewable energy systems, electrical engineering training and laboratory testing. The high/low impedance voltage measurement mode helps eliminate ghost voltage interference and improves troubleshooting accuracy in control circuits, weak-current systems and industrial automation applications. The DC current measurement and ZERO function of the TA811C make it suitable for DC motors, solar power systems, battery management systems, UPS equipment and new energy applications. Equipped with overload protection, illuminated display, built-in LED flashlight, auto power-off function and durable battery performance, the TA811 Series Digital Clamp Meter provides reliable measurement solutions for electricians, maintenance engineers, technicians and industrial professionals working in demanding field environments.

The TA800A Handheld Digital Multimeter (DMM / Electrical Tester) is a compact and reliable electrical measurement tool designed according to the IEC61010-1 safety standard with CAT III 600V protection rating. Featuring a 2000-count LCD display, this digital multimeter supports essential measurements including DC voltage, AC voltage, DC current, resistance, diode testing, and continuity buzzer testing, making it suitable for daily electrical troubleshooting and component inspection. Equipped with practical functions such as data hold, backlight display, and automatic power-off, the TA800A provides convenient operation and efficient measurement performance in various working environments. Its compact handheld design makes it easy to carry for electricians, maintenance technicians, engineers, and electronics users. The TA800A digital multimeter, also known as a handheld multimeter, electrical tester, voltage meter, current meter, resistance tester, or circuit testing instrument, is widely used in electrical installation, building maintenance, HVAC electrical troubleshooting, home appliance repair, industrial equipment servicing, control cabinet inspection, electronic laboratories, vocational training, and DIY electronics projects. It helps users quickly identify circuit problems, verify electrical parameters, and improve maintenance efficiency.

TASI TDF Series High Power Programmable DC Power Supply is a precision intelligent DC power source designed for R&D laboratories, industrial manufacturing, and automated testing applications. Also known as programmable power supply, programmable DC source, laboratory DC power supply, digital DC power supply, adjustable DC power supply, and high power DC supply, this series provides accurate voltage and current control for various electronic testing environments. Featuring a four-window LED digital display, the power supply simultaneously shows output voltage, current, power, and operating time, allowing engineers to monitor test conditions in real time and record long-duration aging and reliability test data accurately. The TDF Series supports continuous voltage and current adjustment, six groups of preset parameter storage (M1-M6), and hardware LIST programmable sequence output. Users can create multi-step voltage/current profiles for automated aging tests, cycling tests, reliability verification, and complex load simulation. Equipped with an RS485 communication interface supporting Modbus protocol, it can integrate with PCs, PLC systems, and automated production lines for remote control, data acquisition, and intelligent manufacturing applications. The power supply incorporates five comprehensive protection functions including over voltage protection (OVP), over current protection (OCP), over power protection, over temperature protection, and short circuit protection. Combined with remote SENSE voltage compensation technology, it maintains accurate output voltage even during high-current and long-cable testing conditions. Additional functions such as parameter memory, key lock, and power-on status saving improve operation safety and testing efficiency. With multiple models covering output ranges from 0-15V to 0-120V, maximum current up to 100A, and power output up to 3600W, the TDF Series adopts intelligent forced-air cooling technology to ensure stable operation, low ripple output, excellent load regulation, and reliable long-term performance. It is widely used in lithium battery pack testing, energy storage system development, automotive electronics testing, motor drive verification, industrial automation equipment commissioning, robotics development, railway electronics testing, aerospace electronics validation, university laboratories, and scientific research facilities. The TDF Series is an ideal high power programmable DC power solution for engineers, production testing lines, and quality inspection departments.

The TASI TDE Series High Power Adjustable DC Power Supply is a high-performance constant voltage and constant current power source integrating precise output control, intelligent monitoring and comprehensive safety protection. Also known as an adjustable DC power supply, laboratory DC power supply, programmable DC power supply, bench power supply, constant voltage power supply, constant current power supply and industrial testing power supply, the TDE Series provides stable and accurate DC output for various electronic and electrical testing applications. Equipped with a four-window high-definition LED display, the power supply simultaneously monitors output voltage, current, power and equivalent load resistance in real time, allowing engineers and technicians to quickly analyze load conditions and optimize testing efficiency. The precision rotary adjustment design supports fine voltage and current tuning, while parameter memory and output lock functions improve repeatability and prevent accidental operation during long-term testing. The TDE Series features automatic switching between Constant Voltage (CV) and Constant Current (CC) modes, combined with five-layer protection including over-voltage protection (OVP), over-current protection (OCP), over-power protection, over-temperature protection and short-circuit protection. These advanced protection systems ensure safe operation for both the power supply and connected devices. With multiple power options covering voltage ranges from 0-15V to 0-120V, current output up to 100A and power capability up to 3600W, this high power adjustable DC power supply is widely used in electronics laboratories, electrical engineering, automotive electronics, new energy vehicles, battery PACK testing, energy storage systems, solar inverter development, charging stations, industrial automation, robotics, aerospace electronics, railway systems, equipment maintenance and university research laboratories. Featuring excellent voltage stability, low ripple noise, strong load capability and intelligent cooling technology, the TDE Series provides reliable power solutions for R&D testing, production line aging tests, product verification, maintenance applications and continuous industrial operation.

The TA511 Series Laser Distance Meter (Laser Distance Measurer, Laser Rangefinder, Digital Measuring Tape, Electronic Distance Meter) is a professional measurement tool integrating high-precision laser measurement, intelligent calculation and portable operation. Available in 50m, 70m and 100m measuring ranges, it is designed for various applications including interior decoration, construction projects, engineering surveying, and industrial maintenance. Compared with traditional tape measures, the laser distance meter provides faster measurement speed, higher accuracy and improved efficiency while reducing manual calculation errors. Equipped with advanced laser ranging technology, the TA511 Series delivers measurement accuracy up to ±(2mm+d/10000) and supports multiple measurement functions including single distance measurement, continuous measurement, area calculation, volume calculation, indirect height measurement based on the Pythagorean theorem, and addition/subtraction calculations. With 99 groups of data memory, multiple unit conversions, self-calibration function and selectable front/rear reference points, this laser measuring tool meets different measurement standards and professional requirements worldwide. The TA511 Series Laser Distance Meter is widely used in residential renovation, interior design, building construction, real estate surveying, architectural inspection, HVAC installation, window and door installation, customized furniture manufacturing, cabinet installation, flooring projects, curtain wall engineering, bridge construction, industrial facility planning, warehouse management, property maintenance, electrical installation, communication engineering and municipal construction. It is an ideal digital measuring solution for architects, engineers, contractors, surveyors, installers and maintenance professionals. Featuring a backlit LCD display, key sound indication, automatic power-off, automatic laser shutdown and long battery life, the TA511 provides reliable performance even in low-light environments, basements and complex job sites. With a compact lightweight design of approximately 81g, it enables convenient one-hand operation and easy portability, making it an efficient alternative to traditional measuring tapes for construction measurement, layout planning, interior projects and facility maintenance.

The TA503 Series Digital Tachometers are high-accuracy and multifunctional rotational speed measuring instruments, also known as digital tachometers, RPM meters, speed meters, rotation testers, electronic tachometers, optical tachometers, contact tachometers, and non-contact tachometers. The series supports both non-contact optical measurement and contact measurement modes, providing fast and reliable measurement of rotational speed (RPM), linear speed, and length for various rotating equipment. The TA503 series includes the TA503A Non-Contact Digital Tachometer, TA503B Contact Digital Tachometer, and TA503C Contact & Non-Contact Digital Tachometer, offering flexible solutions for different industrial measurement requirements. The TA503C model is equipped with a USB communication interface, allowing connection to a computer for data acquisition, measurement record export, and further data analysis. Designed for industrial inspection and engineering applications, the tachometers provide fast response, stable readings, and high repeatability. Integrated functions include Data Hold, MAX/MIN/Average measurement, high/low limit alarm, data logging, multiple measurement units, ambient temperature display, and automatic power-off. The compact and portable design makes them ideal for field inspection, equipment maintenance, production line testing, and laboratory applications. The TA503 Series Digital Tachometers are widely used in motor manufacturing, automation equipment, mechanical engineering, HVAC systems, fan production, power equipment, automotive maintenance, petrochemical plants, steel manufacturing, conveyor systems, and educational laboratories. They are suitable for measuring the rotational speed of AC motors, DC motors, servo motors, engines, fans, pumps, generators, machine tool spindles, and transmission systems for performance testing, troubleshooting, and preventive maintenance.

The TA605 Series Infrared Thermometer is a professional non-contact temperature measurement instrument, also known as an infrared temperature gun, laser thermometer, handheld infrared temperature meter, or industrial infrared temperature tester. By detecting the infrared energy emitted from an object's surface, it quickly calculates surface temperature without physical contact, providing safer and more efficient temperature inspection in high-temperature, energized, or hard-to-reach environments. Featuring a 12:1 distance-to-spot ratio and laser targeting system, the TA605 Series allows users to accurately identify measurement areas for reliable temperature readings. The adjustable emissivity range from 0.10 to 1.00 enables accurate measurement on various materials including metal, plastic, concrete, wood, glass, and ceramic surfaces. With functions such as high/low temperature alarms, data hold, maximum value lock, ℃/℉ conversion, and adjustable operation sound, this series is designed for professional field inspection and preventive maintenance. Available in multiple temperature ranges including -50℃ to 480℃, -50℃ to 680℃, and -50℃ to 880℃, the TA605 Series infrared thermometer is widely used in electrical inspection, industrial maintenance, manufacturing, HVAC systems, automotive repair, construction inspection, food processing, cold chain management, chemical equipment monitoring, and energy management applications. It is commonly used for detecting overheating electrical connections, monitoring motor bearing temperature, checking HVAC pipelines, diagnosing automotive components, monitoring food processing temperatures, evaluating building insulation performance, and inspecting industrial equipment conditions. The TA605 Series provides engineers, technicians, and maintenance professionals with a reliable solution for fast temperature measurement, troubleshooting, and preventive maintenance.

The TA8331A digital earth resistance tester is a professional instrument designed for measuring earth resistance and earth voltage in electrical grounding systems. It is widely used in power distribution, lightning protection, industrial maintenance, telecommunications, building installations and preventive electrical inspections to verify the safety and reliability of grounding systems. The tester utilizes the industry-standard 4-pole measurement method and also supports 2-pole simplified testing, providing flexible solutions for both standard installations and sites where auxiliary earth electrodes cannot be easily installed. With a measurement range of 0–2000Ω, it is suitable for testing protective grounding systems, electrical equipment, transformers, distribution panels and grounding networks. Built-in AC 200V earth voltage measurement allows users to verify the presence of hazardous voltage before testing, improving operational safety. A large LCD displays measurement results clearly and includes Data Hold, low battery indication and over-range warning for convenient field operation. The instrument can be powered by batteries or an external DC adapter, making it suitable for both portable inspections and continuous testing. Designed in accordance with IEC safety standards, the TA8331A features overload protection, double insulation and complete test accessories, delivering reliable performance for electrical contractors, maintenance engineers and grounding system inspections.