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Humidity Sensor THGR918N Replacement Sensor Element
Packaged in a 2-pin in-line package
Dimensions 15 x 9 x 4mm (body), lead spacing 2.54mm
Rated voltage 1V rms
Rated current 0.2mA
Operating frequency range 0.5 to 2kHz
Operating temperature range 0°C to +60°C
Operating humidity range 90% RH
Impedance range @ 60% RH 25°C 14.2 to 38.5kO
Humidity accuracy –5 to +5% RH
Hysteresis @ 40 to 80% RH 2% RH
Temperature dependence (ref.) 0.6% RH/°C
The humidity Sensor on the Oregon weather station deteriorates over time I found
a replacement component even though the specifications say it goes to 90% humidity
when testing it goes to 98% exactly the same spec as in the manual..
The replacement looks more substantial, it is housed in a black plastic case it was very
easy to replace all I did was to carefully desolder the old component off the circuit board,
then solder in the new component. Testing after reassembly I took a very damp cloth and
loosely wrapped it around plastic sensor, assembly within approximately 5 minutes.
The reading on the display was 98%.
New Sensor Element