TRSI TA640A Handheld High Precision Wind Speed Instrument Wind Volume Tester

Features:
1. 8-blade design, with low-friction high-precision bearings, more responsive
2. Can lock the maximum, minimum and real-time values ??during the measurement process
3. High-definition large screen display with white background light
4. Use 2x1.5VAAA (not included) No. 7 batteries, automatically shut down after 15 minutes of no operation (can be canceled manually)

Parameters:
1. Measuring range: 0.1-30.0m/s
2. Resolution: 0.1m/s
3. Temperature measurement range: 0-45 degrees Celsius
4. Wind speed display: four-digit display, up to 9999
5. Sensor: infrared laser tube cutting method
6. Sampling rate: 2 times/second
7. Automatic shutdown: 15 minutes (can be turned off manually)
8. Power supply: 2 x 1.5V AAA (RO3/LRO3) (not included)
9. Operating environment: -10-50 degrees Celsius, relative humidity within 80%, indoor altitude less than 2000m
10. Storage environment: -10-50 degrees Celsius, relative humidity within 70% (remove the battery)
11. Overall size: 168x59x29mm
12. Weight: about 120g (without battery)