The Testo 615-625  

The Testo 615 and 625 are highly accurate, compact instruments which measure humidity, temperature and dew point for applications in the HVAC and clean rooms industry. The humidity range for both instruments is 5 to 95 % RH using the Testo patented humidity sensor. The temperature range is 0 to 50 ºC (32 to 122 ºF) using a NTC sensor.

 

Low cost digital thermo-hygrometer for a wide range of applications:
Measuring humidity in ventilation ducts 
Checking air conditioning systems
Monitoring ambient conditions in greenhouses
Checking ambient conditions in offices, working and living areas 
Measuring dew point to prevent mold and corrosion
Measuring humidity in storage rooms or museums 
 
 
Features:
Guaranteed long-term stable humidity measurement for many years 
Testo® humidity sensor is unaffected by water 
Simultaneous display of humidity and temperature or dewpoint and temperature
Dew point calculation
Easiliy caibrated

 
 
Technical Data Testo 615  Testo 625
Measuring Range RH: 5 to 95% RH 

Temperature: 0 to 50ºC (32 to 120ºF) 

RH: 5 to 95% RH 

Temperature: 0 to 50ºC (32 to 120ºF) 

Accuracy  RH: ±3% RH 

Temperature: ±0.7ºC/ºF 

RH: ±3% RH 

Temperature: ±0.7ºC/ºF 

Storage Temperature  -20 to 70ºC (-4 to 158ºF)  -20 to 70ºC (-4 to 158ºF) 
Probe  attached to housing attached to housing by a cable
Warranty  2 years 2 years
Accesories: The Testo TopSafe, protects the thermometer against dirt, dust and shock.