Vaisala HM34 - Manual (Page 7)

5. TECHNICAL SPECIFICATIONS
Measurement range
humidity 0...100 %RH
temperature -20...+60
°
C or
-4...+140
°
F
Accuracy (at +20
°
C):
(including nonlinearity and hysteresis)
relative humidity
against factory references +1 %RH
against field references +2 %RH (0...90 %RH)
+3 %RH (90...100 %RH)
temperature
+0.3
°
C (+0.5
°
F)
NOTE:
When the HM34 is used in an electromagnetic field of 3 V/m,
with the frequency of 200 - 220 Mhz, the temperature
deviation is max. ±3 °C.
Temperature dependence:
+0.04 %RH/
°
C
+0.02
°
C/
°
C
Resolution: 0.1 %RH
0.1 °C (0.1 °F)
Response time for
humidity (at +20 °C): 15 s
Display: 3 1 /
2
-digit LCD
HOLD function: pushbutton hold
for displayed value
Supply voltage: 9 V battery (IEC 6F22)
Battery operating time: 50 h (typ.)
Automatic power-off: after 3 minutes, unless
HOLD is activated
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