TA622 Series
Digital Thermo-Hygrometers
TA622 Series
Digital Thermo-Hygrometers
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.
Models in this series

TA622A
Industrial Digital Thermo-Hygrometer
High Accuracy | Data Logging

TA622B
Industrial Digital Thermo-Hygrometer (PC Communication)
Data Logging | USB PC Communication

TA622C
Industrial Digital Thermo-Hygrometer (PC Communication)
Separate Sensor Design | USB PC Communication
Specs
Model | TA622A | TA622B | TA622C | |
Measurement Method | Integral type | Integral type | Split Type | |
Temperature | Range | -40℃ ~ 80℃ / -40℉ ~ 176℉ | ||
Accuracy | ±0.5℃ / ±1℉ | |||
Resolution | ≤80: 0.01℃ / 0.01℉; >80: 0.01℉; ≥100: 0.1℉ | |||
Relative Humidity | Range | -40℃ ~ 80℃ / -40℉ ~ 176℉ | ||
Accuracy | ±0.5℃ / ±1℉ | |||
Resolution | ≤80: 0.01℃ / 0.01℉; >80: 0.01℉; ≥100: 0.1℉ | |||
Display | VA color screen display, 4 digits, max 9999 | |||
Sensor | High precision digital sensor, SENSIRION SHT C3 | |||
Measurement Speed | 10 times/s | |||
Features
Model | TA622A | TA622B | TA622C | |
Wet-Bulb Temperature. | ✓ | ✓ | ✓ | |
Dew Point Temp. | ✓ | ✓ | ✓ | |
℃ / ℉ Switching | ✓ | ✓ | ✓ | |
Data Hold | ✓ | ✓ | ✓ | |
Max | ✓ | ✓ | ✓ | |
Min | ✓ | ✓ | ✓ | |
Avg. | ✓ | ✓ | ✓ | |
Upper / Lower Alarm | ✓ | ✓ | ✓ | |
Data Recording | 8000 records | 4000 records | 4000 records | |
Alarm Mode | Buzzer + Number flashing | |||
Backlit Display | ✓ | ✓ | ✓ | |
Low Voltage Prompt | ✓ (below 4.2V) | |||
Auto Power Off | 15mins (can be canceled manually) | |||
USB Communications | - | - | ✓ | |
Key Specs
Model | TA622A | TA622B | TA622C | |
Operating Conditions | -10 ~ 50°C, max 80%RH, indoor altitude <2000m | |||
Storage Conditions | -10 ~ 50°C, max 70%RH, indoor altitude <2000m (remove the battery) | |||
Display Size | 53 x 44mm | |||
Power Supply | 3 x 1.5V AA (LR06) / USB micro interface 5V | |||
Product Size | 218 x 70 x 35mm | 218 x 70 x 35mm | Main machine: 177 x 70 x 35mm / Probe: | |
Product Weight | Approx.190g (not including battery) | Approx.190g (not including battery) | Approx.000g (not including battery) | |
Packing Quantity | 40pcs | |||
Packing Weight | 20.7kg | 22.2kg | 22kg | |
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