TESTO Multi-Probe for Testo 400/440 0635 1570 1 unit

Catalog number: 0635 1570 Features: ●Multi-probe head with built-in thermal anemometer and temperature/humidity sensor, capable of measuring air speed, temperature, humidity and calculating air volume. ●If you already own a probe with a handle, you can measure air speed, temperature and humidity simply by replacing the probe head. ●Built-in air pressure sensor compensates for air speed and volume according to air density. Applications: ●For ventilation/air conditioning and measuring indoor air quality. Specifications: ● Measurement wind speed range (m/s): 0 to 50 ● Resolution (m/s): 0.01 ● Measurement temperature range (℃): -20 to +70 ● Resolution temperature (℃): 0.1 ● Resolution humidity (%RH): 0.1 ● Width (mm): 12 ● Depth (mm): 12 ● Height (mm): 235 ● Measurement range temperature (℃): -20 to +70 ● Wind speed measurement accuracy: ± (0.03 m/s + 4% of measured value) (Typical value: 0 to 20 m/s) ● Measurement range humidity (%RH): 5 to 95