1. Temperature range: -40 - 80 degrees Celsius / -40 - 176 degrees Fahrenheit; accuracy: about 0.5 degrees Celsius / about 1 degree Fahrenheit2. Humidity range: 0-100% RH; accuracy: about 3% RH (10-90% RH) / about 5% RH (other ranges)3. Sensor: SHTC34. Sampling rate: 10 times/s5. Update speed: 3 times/s6. Recording length: open record from REC, display up to 99 hours7. Data storage: TA622A: 8000, TA622B: 40008. USB computer communication: TA622B has real-time measurement records + host record data upload9. Automatic shutdown: 15 minutes (can be manually shut down)10. Operating environment: -10 - 50 degrees Celsius, within 80% relative humidity, indoor altitude less than 2000m11. Storage environment: -10 - 50 degrees Celsius, within 70% relative humidity (remove the battery)12. Power supply: 3 x 1.5VAA (LRO6) batteries (not included) / USB micro interface 5V13. Display size: about 5.3 x 4.4cm14. Size: about 21.8 x 6.7 x 3.5cm15. Weight 190gFeatures:1. Four parameters measurement, ambient temperature, ambient humidity, dew point temperature, wet bulb temperature, can display two lines of data at the same time2. High precision temperature and humidity sensor3. Upper/lower limit exceeds the limit prompt: temperature and humidity can set the upper and lower limit alarm threshold; when the measurement is higher or lower than the set threshold, there will be a buzzer alarm prompt sound, as well as alarm prompt light flashing4. VA high-definition color screen display with background lighting5. Two power supply modes: battery and USB interface6. Data logging records:- Interval length can be set to: 5s/10s/30s/60s/30min/60min/12h/24h, a total of 8 gears- TA622B can export and generate charts by communicating the data recorded by the host computer with the PC software through the USB interface7. USB computer communication (only TA622B) has the ability to download recorded data, communicate with computer in real time, display real-time data tables and real-time data graphs; export and print xlsx data tables and graphs; the upper computer software is applicable to computer systems Win7, Win8, Win10Specification: Package Weight One Package Weight 0.42kgs / 0.93lb One Package Size 30cm * 10cm * 6cm / 11.81inch * 3.94inch * 2.36inch Qty per Carton 40 Carton Weight 16.60kgs / 36.60lb Carton Size 61cm * 34cm * 44cm / 24.02inch * 13.39inch * 17.32inch Loading Container 20GP: 292 cartons * 40 pcs = 11680 pcs40HQ: 678 cartons * 40 pcs = 27120 pcs