12181 - iTiG ~ inside The iG Sensor ~
Part #: 12181
~ inside The iG Sensor ~
Argon calibration included.
Krypton calibration +$100.
The RH sensor has an accuracy of ±2RH through the temperature range 0 to 80C. FP is a nonlinear function of only two things: RH and Temperature. If we know the RH at a given temperature then we can calculate dew point (or frost point if below freezing). If the sensor is reading 1% RH at 21°C then the frost point will be -38C. If RH is 0.5% at 21C then FP is -44C.
The argon sensor is heated to 120-130°F so over time this heat will migrate to the RH sensor and slightly skew the RH, FP, and temperature readings. The horizontal slot cut into the circuit board helps with this heat migration but doesn’t stop it.