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.

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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 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.

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.

TASI TDB Series Adjustable DC Power Supply is a high-precision regulated power supply featuring constant voltage (CV) and constant current (CC) operation, with multiple output options ranging from 15V/5A to 100V/3A. As an adjustable DC power supply, laboratory power supply, variable power supply, bench power supply, and electronic test power source, it is widely used in R&D laboratories, electronics manufacturing, production line testing, industrial maintenance, automation systems, educational training, PCB testing, automotive electronics, communication equipment and component inspection applications. The TDB Series supports automatic switching between constant voltage and constant current modes, providing precise and continuous adjustment of output voltage and current. With high setting resolution, low ripple output and excellent stability, it delivers reliable DC power for electronic components, circuit boards, sensors, modules and various electronic devices requiring accurate power control. Equipped with built-in Over Voltage Protection (OVP) and Over Current Protection (OCP), the power supply allows users to set protection thresholds according to different applications. When abnormal output conditions occur, the system quickly disables the output to protect the connected devices and the power supply itself. The TDB Series supports three groups of parameter storage (M1/M2/M3), allowing users to save and recall frequently used settings for efficient repeated testing. The integrated RS232 communication interface enables connection with computers and automated test systems for remote control, parameter configuration and data acquisition, making it suitable for smart manufacturing environments. The high-resolution digital display provides real-time voltage, current and power readings simultaneously. Combined with adjustment knobs, function keys, output control and parameter lock functions, the operation is simple and efficient. With compact construction, forced cooling design and a 0–40℃ operating temperature range, the TDB Series is ideal for laboratory experiments, electronic product development, production line aging tests, repair stations and professional testing applications.

The TA802 Series Pen-Type Smart Digital Multimeter, including TA802A and TA802B models, combines the portability of an electrical test pen with the professional measurement capabilities of a digital multimeter. Designed for electrical testing, maintenance and troubleshooting, it provides a compact and efficient solution for electricians, engineers and technicians. Compliant with GB4793.1 and EN61010-1 international safety standards, the instrument features a high-resolution 9999-count display, automatic ranging function and an innovative pen-style design. The 180° rotating display allows convenient viewing from different angles, making it suitable for single-hand operation and use in limited spaces. The TA802 Series digital multimeter supports AC/DC voltage, resistance, continuity buzzer, diode testing, capacitance and frequency measurement. Integrated NCV non-contact voltage detection and live wire identification functions enable fast electrical inspection and circuit troubleshooting. The TA802A model additionally provides logic level testing for electronic circuit debugging, PCB testing and digital signal analysis. Equipped with LCD backlight, built-in LED flashlight, data hold function, configurable auto power-off and multiple overload protection circuits, this portable pen multimeter is widely used in home electrical installation, building maintenance, appliance repair, industrial equipment servicing, automation production line inspection, low-voltage engineering, smart building projects, electrical training and electronic development applications. With its compact design, versatile functions and reliable safety protection, the TA802 Series Pen Multimeter is an ideal handheld measurement tool for electricians, maintenance engineers and electronics professionals.

The TA803 Series True RMS Digital Multimeters are designed for electrical maintenance, industrial service, electronics troubleshooting, and laboratory applications. The series includes TA803A, TA803B, and TA803C, offering multiple performance levels to meet both everyday electrical testing and high-precision measurement requirements. Equipped with True RMS technology, the TA803 Series accurately measures both sinusoidal and non-linear waveforms generated by variable frequency drives, motor controllers, and other modern electronic equipment. Compared with conventional average-responding multimeters, it delivers higher accuracy in demanding electrical environments. The series offers 3999-, 5999-, and 20000-count display resolutions. TA803A is ideal for routine electrical maintenance, while TA803B adds frequency and temperature measurement for HVAC and industrial applications. TA803C features a 20000-count high-resolution display, making it suitable for precision electronics, industrial automation, and laboratory testing. The meters support auto-ranging measurement of AC/DC voltage, AC/DC current, resistance, capacitance, continuity, and diode testing. Selected models also provide frequency and K-type temperature measurement to meet more advanced testing requirements. A backlit LCD display, Data Hold, and Max/Min recording functions improve efficiency during field measurements. Designed in accordance with IEC safety standards, the TA803 Series features a CAT III safety rating and full-range overload protection for reliable operation in demanding environments. With automatic power-off, low battery indication, and a compact handheld design, the TA803 Series is an ideal solution for electricians, maintenance engineers, industrial technicians, HVAC professionals, electronics engineers, and laboratory users.

TA821A is a handheld 3999-count True RMS digital multimeter in the TA821 Series. It can also be described as a digital multimeter, handheld multimeter, multi-function electrical tester, portable multimeter tester, or voltage/current/resistance meter. Featuring a clear LCD display, the meter supports essential measurement and testing functions including AC/DC voltage, DC current, resistance, continuity, diode testing, NCV non-contact voltage detection, and live wire identification. It is well suited for a wide range of applications such as electronics repair, electrical troubleshooting, residential wiring inspection, distribution panel checks, equipment maintenance, basic industrial service, educational labs, DIY projects, facility maintenance, and general household testing. The TA821A also includes data hold, display backlight, flashlight illumination, and auto power-off, making it practical for low-light and on-site working environments. Designed in compliance with EN IEC 61010-1 and rated CAT III 600V, it is a reliable and practical solution for everyday electrical and electronic measurement tasks.