Room climate can change quickly in offices, storage areas, museums, production rooms or building inspections. This handheld family gives technicians a practical way to check relative humidity and temperature directly on site, using Pt1000 temperature sensing and a capacitive polymer humidity sensor for ambient air measurements.
The range lets you choose the depth of climate information required for the task. GFTH 95 covers basic humidity and temperature checks, GFTH 200 adds dew point measurement and an external Pt1000 probe connection, while GFTB 200 extends the view with absolute pressure and calculated values such as wet bulb temperature, mixing ratio and absolute humidity. This helps identify condensation risks, assess indoor climate conditions and support building physics or damage assessment work.
Practical functions support routine field use. Depending on model, the meters provide min/max memory, hold, auto-off, selectable measuring speed, alarm with integrated buzzer and PC interface. A clear LCD, 9 V battery operation and ABS housing keep the instruments ready for mobile climate checks.
The family includes GFTH 95 for humidity and temperature, GFTH 200 for humidity, temperature and dew point, and GFTB 200 for humidity, temperature, absolute pressure and calculated air-state values.
GFTH models use a side selector for the displayed measured value. GFTB 200 switches values via keys and can cycle through selected display values in 2 or 4 second intervals.
GFTH 200 and GFTB 200 include min/max memory. The hold function freezes the current readings for easier reading after measurement.
GFTH 200 provides a 3.5 mm socket for an external Pt1000 temperature probe. Dew point or wet bulb calculation continues to use the internal temperature sensor.
GFTH 200 and GFTB 200 offer digital offset and slope correction. GFTB 200 also allows unused display values to be hidden.
GFTB 200 provides a serial PC interface via the USB 3100 N converter and an alarm function with integrated buzzer.
