Datasheet
32
Checks ambient conditions – Flexible and robust
Monitors Indoor Air Quality
Technical data
Meas. range -10 to +60 °C 0 to +100 %RH -200 to +1370 °C
Resolution 0.1 °C 0.1 %RH 0.1 °C
Accuracy
±1 digit
±0.5 °C ±2.5 %RH (+5 to
+95 %RH)
Probe type NTC Testo humid.
sensor, cap.
Type K (NiCr-Ni)
Oper. temp. -20 to +50 °C
Storage temp. -40 to +85 °C
Battery type 9V block battery, 6F22
Battery life 70 h (without radio operation)
Dimensions 182 x 64 x 40 mm
Radio module for upgrading measuring instrument with radio option
Radio probes: General technical data
Radio module for measuring instrument, 869.85 MHz, approval for the countries: DE, FR, UK, BE, NL, ES, IT, SE, AT,
DK, FI, HU, CZ, PL, GR, CH, PT, SI, MT, CY, SK, LU, EE, LT, IE, LV, NO
Radio module for measuring instrument, 915.00 MHz FSK, approval for USA, CA, CL
0554 0188
0554 0190
869.85 MHz FSK
915.00 MHz FSK
Radio freq.Country versions Part no.
Radio handle for plug-in probe heads, incl. T/C adapter, approval for the countries: DE, FR, UK, BE, NL, ES, IT, SE, AT,
DK, FI, HU, CZ, PL, GR, CH, PT, SI, MT, CY, SK, LU, EE, LT, IE, LV, NO
Radio handle for plug-in probe heads, incl. T/C adapter, approval for USA, CA, CL
0554 0189
0554 0191
869.85 MHz FSK
915.00 MHz FSK
Radio freq.Country versions Part no.
Radio handles for humidity probe head
Radio handle for attachable humidity
probe head (humidity probe head included
in delivery of testo 625)
Radio handles, separate
Measuring rate
0.5 s or 10 s,
adjustable on handle
Battery type
Battery life
Radio immersion/penetration probe, NTC
2 x 3V button cell (CR 2032) 2 AAA micro batteries
150 h (meas. rate 0.5 s)
2 months (meas. rate 10 s)
215 h (meas. rate 0.5 s)
6 months (meas. rate 10 s)
Radio handle
Radio
transmission
Radio coverage
Unidirectional
Oper. temp. -20 to +50 °C
Storage temp. -40 to +70 °C
Up to 20 m (without
obstructions)
testo 625 with handle,
probe cable included
testo 625 with radio
handle and radio module
testo 625
testo 625, humidity/temperature
measuring instrument, incl. plug-in
humidity probe head, battery and
calibration protocol
Part no. 0563 6251
testo 625
The compact instrument with
built-in humidity probe head for
measuring air moisture and
temperature. The large 2 line
display shows humidity, wet bulb
temperature or dewpoint as well
as temperature.
When measuring at hard-to-
access points, the humidity
probe head can be easily
removed and attached to the
handle via the probe cable
(accessory).
Alternatively, the readings can be
transmitted wirelessly over wide
distances from the probe to the
measuring instrument. To do this,
the humidity probe head is
attached to the radio handle
(accessory) and the radio module
(accessory) is added to testo
625.
• Displays temperature and
relative humidity / wet bulb
temperature / dewpoint
• Max./min. values
• Hold button to freeze readings
• Display light
• Auto Off function
• Patented humidity sensor
• 2 year guaranteed long-term
stability
• TopSafe, instrument protection
against dirt and knocks
(optional)
Accessories Ordering data
Handle for plug-in humidity probe head for connection to testo
625, probe cable included (length 120 cm)
0430 9725
Case for measuring instrument and probes
0516 0210
TopSafe, protects from impact and dirt
0516 0221
Recharger for 9V rechargeable battery, for external
recharging of 0515 0025 battery
0554 0025
9V rech. battery for instrument, instead of battery
0515 0025
testo saline pots for control and humidity adjustment of
humidity probes, 11.3 %RH and 75.3 %RH with adapter for
humidity probe
0554 0660
ISO calibration certificate humidity, Calibration points 11.3 %RH
and 75.3 %RH at +25°C
0520 0006
DAkkS calibration certificate/humidity*, electronic hygrometers;
calibration points 11.3%RH and 75.3%RH at +25°C
0520 0206
Part no.
Lithium battery button cell, CR2032 AA batteries for radio
handle
0515 0028
*Successor organization of the DKD