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 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 TASI TA623 Series Large Display Thermo-Hygrometer is a high-precision temperature and humidity monitoring instrument designed for fixed environmental monitoring applications. Also known as a digital thermo-hygrometer, temperature humidity monitor, environmental temperature and humidity meter, humidity detector, or industrial climate monitoring device, the series includes TA623A with a built-in sensor and TA623B with a 5m external probe. It provides real-time measurement of ambient temperature and relative humidity, making it ideal for pharmaceutical warehouses, food storage rooms, laboratories, archives, server rooms, data centers, manufacturing workshops, greenhouses, cleanrooms, and HVAC system monitoring. Featuring a dual-channel large LCD display, the TA623 Series clearly displays temperature and humidity readings simultaneously for quick environmental assessment. Users can set customized upper and lower alarm limits, and the device provides audible, visual, and LED alerts when measured values exceed preset ranges. This helps operators take timely actions such as ventilation, cooling, humidification, or dehumidification, effectively reducing risks caused by excessive humidity, overheating, condensation, material damage, and product quality issues. The TA623A built-in sensor model is suitable for conventional indoor monitoring applications such as offices, warehouses, laboratories, equipment rooms, and control rooms. The TA623B external probe model features a 5-meter cable probe, allowing users to measure temperature and humidity in hard-to-reach areas including cold storage rooms, pipelines, equipment interiors, sealed containers, and industrial process environments. Supporting wall mounting, magnetic mounting, and tripod installation, the TA623 Series adapts to various installation requirements. With stable Type-C DC power supply, it supports long-term 24/7 continuous monitoring. Additional features include ℃/℉ unit switching, memory retention of alarm settings, and fast stable sampling performance. With its large display, intelligent alarm function, flexible installation options, and reliable monitoring capability, the TA623 Series temperature and humidity monitor is widely used in industrial manufacturing, logistics storage, healthcare facilities, food processing, agriculture, building inspection, and equipment maintenance applications.

The TA650A Digital Sound Level Meter is a professional handheld noise measurement instrument, also known as a sound level meter, noise tester, decibel meter, sound meter, or noise monitoring device. Equipped with a high-sensitivity condenser microphone, it provides a wide measurement range of 30.0 to 130dB with 0.1dB resolution and ±1.5dB accuracy. The A-weighting measurement mode simulates human hearing characteristics to provide reliable environmental sound level evaluation. The digital noise meter supports FAST and SLOW time weighting modes, allowing accurate measurement of transient noises, machine operating noise, and stable environmental sound levels. With a windscreen microphone cover, data hold function, maximum/minimum value recording, backlit display, and automatic power-off function, the instrument delivers convenient operation for both indoor and outdoor noise inspections. The TA650A handheld sound level meter is widely used in industrial manufacturing, equipment maintenance, occupational health and safety, construction engineering, environmental monitoring, education, commercial facilities, and product quality testing. It is suitable for factory workshop noise measurement, production line noise control, machinery performance evaluation, urban environmental noise monitoring, classroom and hospital sound assessment, building acoustic inspection, and noise testing of electrical appliances, motors, fans, and other products. It is an ideal solution for professional noise control, engineering inspection, and daily field measurement applications.

The TA637 Series Digital Lux Meter is a professional illuminance measurement instrument, also known as a Lux Meter, Illuminance Meter, Light Meter, Light Intensity Tester, and Light Environment Analyzer. Featuring a separate optical sensor design with a high-sensitivity silicon photodiode and precision optical filter, the meter provides accurate visible light measurement across a spectral range of 400–700nm. It supports both Lux (LUX) and Foot Candle (FC) units to meet different international lighting measurement requirements. With a wide measuring range of 0.1–200,000 Lux, the TA637 Series Digital Light Meter is suitable for various lighting environments and professional illumination testing applications. The TA637B Bluetooth Lux Meter integrates wireless data transmission, allowing users to connect the meter with a mobile APP for remote data viewing, recording, analysis, and measurement management. Designed with high accuracy, fast response, stable readings, and portable operation, the TA637 Series Illuminance Meter is widely used in industrial manufacturing, electronics production, precision machining, automotive factories, warehouses, construction projects, lighting engineering, LED development, commercial retail, office buildings, schools, hospitals, photography studios, research laboratories, plant lighting, and facility management applications. The TA637 Digital Lux Meter is ideal for lighting installation acceptance, indoor lighting assessment, workplace illumination inspection, LED lamp performance testing, office and commercial lighting optimization, educational and medical lighting evaluation, factory lighting compliance inspection, and smart lighting system adjustment, providing reliable measurement data for improving working environments, enhancing productivity, and ensuring lighting safety standards.

The TASI TA623 Series Large Display Thermo-Hygrometer is a high-precision temperature and humidity monitoring instrument designed for fixed environmental monitoring applications. Also known as a digital thermo-hygrometer, temperature humidity monitor, environmental temperature and humidity meter, humidity detector, or industrial climate monitoring device, the series includes TA623A with a built-in sensor and TA623B with a 5m external probe. It provides real-time measurement of ambient temperature and relative humidity, making it ideal for pharmaceutical warehouses, food storage rooms, laboratories, archives, server rooms, data centers, manufacturing workshops, greenhouses, cleanrooms, and HVAC system monitoring. Featuring a dual-channel large LCD display, the TA623 Series clearly displays temperature and humidity readings simultaneously for quick environmental assessment. Users can set customized upper and lower alarm limits, and the device provides audible, visual, and LED alerts when measured values exceed preset ranges. This helps operators take timely actions such as ventilation, cooling, humidification, or dehumidification, effectively reducing risks caused by excessive humidity, overheating, condensation, material damage, and product quality issues. The TA623A built-in sensor model is suitable for conventional indoor monitoring applications such as offices, warehouses, laboratories, equipment rooms, and control rooms. The TA623B external probe model features a 5-meter cable probe, allowing users to measure temperature and humidity in hard-to-reach areas including cold storage rooms, pipelines, equipment interiors, sealed containers, and industrial process environments. Supporting wall mounting, magnetic mounting, and tripod installation, the TA623 Series adapts to various installation requirements. With stable Type-C DC power supply, it supports long-term 24/7 continuous monitoring. Additional features include ℃/℉ unit switching, memory retention of alarm settings, and fast stable sampling performance. With its large display, intelligent alarm function, flexible installation options, and reliable monitoring capability, the TA623 Series temperature and humidity monitor is widely used in industrial manufacturing, logistics storage, healthcare facilities, food processing, agriculture, building inspection, and equipment maintenance applications.

The TA641B Digital Anemometer is a professional handheld airflow measurement instrument, also known as a portable anemometer, air velocity meter, wind speed meter, airflow tester, or wind temperature and humidity meter. Equipped with a precision vane sensor, it provides fast and accurate air velocity measurement while simultaneously monitoring air temperature and ambient humidity for comprehensive environmental analysis. Supporting multiple selectable wind speed units including m/s, km/h, ft/min, mile/h, and knots, the digital anemometer features practical functions such as data hold, maximum/minimum/average value recording, high/low alarm settings, and backlit display. Its compact and lightweight design makes it suitable for field inspections, HVAC commissioning, ventilation system testing, industrial maintenance, and environmental monitoring applications. The TA641 Series Digital Anemometer is widely used in HVAC systems, building ventilation inspection, air conditioning maintenance, industrial manufacturing, power plants, steel and metallurgy industries, petrochemical facilities, aerospace applications, fan manufacturers, underground spaces, warehouses, laboratories, cleanrooms, weather observation, and outdoor environmental testing. It is ideal for applications such as duct airflow measurement, ventilation performance evaluation, fan testing, air circulation analysis, air quality assessment, and airflow monitoring in both indoor and outdoor environments.

The TA600 Series Infrared Thermometer is a professional non-contact temperature measurement tool, also known as an infrared thermometer, laser temperature gun, IR temperature meter, and handheld infrared temperature tester. It measures surface temperature by detecting infrared energy emitted from target objects, allowing fast and safe temperature inspection without physical contact with the measured surface. Designed with a 10:1 optical resolution ratio and laser targeting function, this infrared temperature gun enables accurate positioning of measurement areas and improves inspection efficiency in various working environments. The device supports both Celsius (℃) and Fahrenheit (℉) temperature units, features data hold functionality, and provides clear temperature readings for convenient field operation. The TA600 Series infrared temperature meter is widely used in electrical testing, industrial maintenance, mechanical manufacturing, HVAC systems, automotive repair, food processing, building inspection, energy management, and laboratory applications. It can be used for temperature checking of electrical panels, cable terminals, transformers, motors, bearings, and machinery components; HVAC pipelines, radiators, heating systems, and air conditioning outlets; vehicle engines, exhaust systems, and braking components; food processing lines, baking applications, and cold chain monitoring; as well as building insulation inspection, underfloor heating installation, and construction temperature analysis. With fast response, compact design, easy operation, and reliable performance, the TA600 Series non-contact infrared thermometer helps engineers, maintenance technicians, and quality inspectors quickly identify abnormal temperature conditions, improve preventive maintenance efficiency, and enhance workplace safety.

The TA616 Series K-Type Thermocouple Thermometer is a professional handheld temperature measuring instrument designed for fast and accurate industrial temperature measurement. The series includes the TA616A single-channel model and TA616B dual-channel model, both compatible with standard K-type thermocouple probes for wide-range temperature testing from -200℃ to +1372℃. The TA616A provides reliable single-point temperature measurement, while the TA616B supports dual-channel temperature monitoring and T1-T2 differential temperature measurement, making it suitable for temperature comparison and process verification applications. Equipped with ℃/℉ conversion, data hold, MAX/MIN recording, and backlight display functions, the thermometer delivers convenient operation and stable performance in various working environments. As a professional K-Type Thermocouple Meter, Digital Thermocouple Thermometer, Thermocouple Temperature Tester, and K Probe Temperature Meter, the TA616 Series is widely used in steel manufacturing, metallurgy, metal processing, heat treatment, plastic injection molding, rubber processing, electronics manufacturing, PCB assembly, HVAC maintenance, equipment servicing, laboratories, and industrial quality inspection. It is ideal for measuring temperatures of molds, furnaces, heating systems, pipelines, machinery surfaces, industrial components, and various production processes.

The TA654 Series External Microphone Digital Sound Level Meter is a professional environmental noise tester, decibel meter, sound level meter, and industrial noise monitoring instrument designed for accurate and reliable sound measurement. Equipped with a high-sensitivity condenser microphone probe and A-weighting measurement mode, it measures ambient noise levels from 30 to 130dB with fast response and stable performance. Unlike traditional sound meters with built-in sensors, the TA654 Series features a 5-meter external microphone probe that allows flexible sensor installation away from the main unit. This design makes it especially suitable for challenging measurement environments such as high-temperature areas, confined spaces, elevated equipment, machinery areas, and locations where direct instrument placement is difficult. The series is widely used for factory workshop noise testing, industrial equipment noise analysis, construction site noise monitoring, road traffic noise measurement, school acoustic assessment, commercial building noise control, data center and machine room monitoring, environmental protection inspections, and occupational health and safety applications. Featuring a 4-digit high-brightness LED display and a 6-level LED noise indicator, the instrument provides clear readings even in large industrial environments. Users can set customized alarm thresholds and alarm durations. When the measured noise exceeds the preset limit, the device automatically activates audible and visual alarms for effective noise risk management. The TA654B model supports data logging, USB communication, and PC software management, enabling measurement recording, historical data review, trend analysis, and long-term noise monitoring. It is an ideal solution for industrial production management, environmental monitoring, workplace safety evaluation, and professional acoustic measurement. With accurate measurement capability, flexible remote microphone installation, multiple mounting options, and advanced data management functions, the TA654 Series external microphone sound level meter, noise detector, decibel tester, and environmental noise monitor provides a reliable solution for manufacturing, environmental protection, construction, public facilities, and research applications.

The TA643A High Accuracy Thermal Anemometer is a professional air velocity measurement instrument designed for accurate airflow testing, especially in low-speed airflow environments. Featuring a highly sensitive thermal sensing telescopic probe, it provides precise measurement of air velocity, air temperature, and airflow volume with a wide velocity range of 0.06 to 45.00 m/s. As a professional thermal anemometer, digital anemometer, air velocity meter, and airflow measurement instrument, the TA643A adopts a slim retractable probe design, allowing measurements in narrow spaces, inside air ducts, equipment openings, and clean environments. It is widely used for HVAC system commissioning, ventilation testing, cleanroom airflow verification, laboratory airflow measurement, fan performance testing, and industrial air circulation analysis. The instrument supports customized duct area settings and automatically calculates airflow volume, with multiple selectable units for velocity and airflow measurement. Equipped with a VA color display, built-in memory for up to 1000 data records, and USB communication capability, the TA643A enables real-time data acquisition, airflow trend analysis, and measurement report generation through computer software. With high measurement accuracy, portable design, and intelligent data management functions, this air velocity tester and airflow meter is ideal for applications in HVAC engineering, building ventilation inspection, air purification systems, electronics manufacturing, equipment cooling analysis, environmental monitoring, power plants, industrial facilities, and scientific research laboratories.

The TA653 Series Large Display Digital Sound Level Meter is a professional environmental noise measurement instrument, also known as a digital sound meter, decibel meter, noise detector, sound level tester, and environmental noise monitor. Equipped with a high-sensitivity condenser microphone and A-weighting measurement technology, it provides fast, accurate, and stable noise measurements from 30 to 130dB, delivering reliable data support for noise analysis, occupational health management, and environmental protection. Featuring a 4-digit high-definition LED display and a 6-level LED noise indicator, the TA653 Series allows clear reading even in factories, industrial workshops, construction sites, transportation areas, and other complex environments. Users can customize alarm thresholds and alarm duration according to different applications. When noise levels exceed the preset limit, the meter automatically activates visual and audible alarms, helping operators quickly identify excessive noise conditions and improve workplace safety management. The TA653B digital sound level meter is equipped with large-capacity data logging capability, allowing automatic recording of noise measurement data. Through USB communication and PC software management, users can upload data, review historical records, perform trend analysis, and conduct long-term noise monitoring. The instrument supports both wall-mounted and tripod installation, making it suitable for fixed monitoring stations and portable field measurements. With accurate measurement performance, large display visibility, intelligent alarm functions, and convenient data management features, the TA653 Series Digital Sound Level Meter is widely used in industrial manufacturing, machinery inspection, factory noise monitoring, occupational health and safety management, schools, hospitals, office buildings, commercial facilities, transportation environments, construction sites, environmental monitoring projects, and public noise control applications. It provides an efficient and reliable solution for professional noise measurement and workplace sound level management.

The TA642 Series High Accuracy Digital Anemometer is a professional handheld air velocity and airflow measurement instrument designed for accurate measurement of air speed, air volume and ambient temperature. The series includes integrated models TA642A and TA642B, as well as the split probe model TA642C, providing flexible solutions for different testing environments. Equipped with a high-performance infrared waveguide sensor, the TA642 Digital Anemometer delivers fast response, stable readings and reliable measurement performance. It is widely used in HVAC systems, air conditioning duct testing, ventilation system commissioning, cleanroom airflow inspection, industrial ventilation monitoring, exhaust systems, building engineering acceptance and environmental testing. The instrument supports multiple air velocity and airflow units, with customizable duct cross-sectional area settings for automatic airflow calculation. It is suitable for measuring airflow in round ducts, rectangular ducts and various ventilation systems. The TA642B and TA642C models feature built-in data logging and USB communication functions, allowing connection with a computer for real-time data acquisition, historical data export, measurement curve analysis and report generation, making testing records easier to manage and trace. With practical functions including data hold, MAX/MIN recording, high/low alarm settings, automatic power-off and low battery indication, the compact and portable TA642 Series Air Velocity Meter is an ideal solution for HVAC professionals, engineers, technicians, manufacturers, laboratories and educational institutions.

The TA620A High Accuracy Digital Thermo-Hygrometer is a portable environmental measurement instrument designed for accurate monitoring of ambient temperature and relative humidity. Equipped with a high-precision GXHTC3 temperature and humidity sensor, it provides fast and reliable measurements with real-time display of temperature and humidity changes. The instrument measures temperature from -20°C to 60°C and relative humidity from 0% RH to 100% RH, making it suitable for a wide range of indoor and industrial environmental monitoring applications. As a digital thermo-hygrometer, temperature and humidity meter, humidity tester, environmental meter, air condition monitor, and portable climate measurement instrument, the TA620A integrates practical functions including data hold, maximum/minimum value recording, °C/°F unit conversion, and backlight display. These functions help users quickly identify environmental variations and maintain suitable temperature and humidity conditions. With its compact handheld design, stable performance, and easy operation, the TA620A is widely used in warehousing and logistics, HVAC systems, cleanrooms, food processing facilities, pharmaceutical storage, laboratories, building inspection, indoor air quality assessment, agriculture and greenhouse management, archives, museums, electronics manufacturing, and industrial production environments. It is ideal for applications such as warehouse climate inspection, server room monitoring, cleanroom control, greenhouse management, equipment environment evaluation, and routine field inspections.

The TA622 Series Digital Thermo-Hygrometer is a professional environmental measurement instrument integrating temperature measurement, humidity detection, environmental monitoring, and data logging functions. It accurately measures ambient temperature and relative humidity while automatically calculating important parameters such as dew point temperature and wet bulb temperature. The series includes the integrated TA622A model and remote probe TA622B/C models, providing flexible solutions for different measurement requirements. Equipped with high-precision temperature and humidity sensors, the instruments deliver fast response, stable readings, and reliable performance for professional field inspections, environmental assessments, and long-term monitoring applications. The TA622 Series can be used as a digital thermo-hygrometer, temperature humidity meter, humidity tester, environmental humidity monitor, or temperature humidity data logger. It supports maximum, minimum, and average value recording, data hold function, adjustable recording intervals, and high/low limit alarms, making it suitable for a wide range of professional measurement tasks. With built-in data storage and USB communication capability, the TA622 Series allows users to connect the instrument to a computer for real-time data acquisition, historical data export, temperature and humidity trend analysis, and measurement report generation. These functions support quality control, environmental management, data traceability, and compliance documentation in industrial applications. Featuring a compact handheld design, intuitive operation, and reliable measurement performance, the TA622 Series Digital Thermo-Hygrometer is widely used in warehouse management, logistics, cold chain transportation, food processing, pharmaceutical manufacturing, laboratories, HVAC system commissioning, cleanrooms, electronics manufacturing, precision machining, agricultural greenhouses, building inspection, archives, museums, and facility maintenance. Whether used for routine environmental inspections or professional temperature and humidity monitoring projects, the TA622 Series provides accurate, stable, and reliable environmental data for users across multiple industries.