The testo
625 measures relative humidity, temperature and dew point in
3 modes: fixed probe, cable probe, plus optional wireless mode.
It is used in applications such as heating, ventilation and
air conditioning (HVAC), water restoration, mold and moisture
prevention and remediation, the clean room industry, or food
manufacturing or preparation.
The humidity
range is 0 to 100% RH using the testo patented humidity sensor.
The temperature range is 32 to 122 °F (0 to 50 °C) using
a thermistor (NTC) type sensor.
The basic
625 comes with a built-in humidity probe head. The large 2 line
display shows humidity, wet bulb temperature or dewpoint as
well as temperature.
When measuring
hard to reach areas, the humidity probe head can be easily removed
and attached to the optional handle via the probe cable.
Alternatively,
the readings can be transmitted wirelessly up to 65 feet from
the probe to the measuring instrument. To accomplish this, the
humidity probe head is attached to the radio handle (accessory)
and the radio module (accessory) is added to the testo 625 meter