Telaire T8700-D Wall Mount Relative
Humidity and Temperature Transmitter

Display Version, American Size

  • Precision humidity and temperature transmitter for HVAC control applications
  • Mounting plate with two-piece terminal blocks provide quick, easy wiring.
  • Gas permeable, water resistant humidity sensor filter prevents particulate and water contamination of the sensor.
  • Field replaceable humidity sensor
  • Locking screw secures cover and sensor to the mounting bracket for tamper resistance.
  • Analog outputs 0-5, 0-10V, 4-20 mA
  • Sensors are shipped factory calibrated
  • Active and passive temperature sensor outputs
  • Modern enclosure with customized branding available.
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Telaire T8700-D Shown
Product Information
Datasheet 684 KB PDF
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Control of Relative Humidity can help prevent condensation in the building envelope and mechanical systems. Relative humidity can be used to increase comfort levels and save energy by reducing the need to heat or cool the air by a few degrees.

The Telaire T8700-D Wall Mount Relative Humidity and Temperature Transmitter uses GE’s own ChipCap sensor that has very fast response times and long-term stability. The plug in ChipCap sensor module also allows quick and simple field replacement negating the need to replace or return the complete transmitter for recalibration. The transmitter has an accuracy of +/- 2.5% and has standard analog outputs that are all user selectable, they include 0-5 v, 0-10v, and 4-20mA. Temperature measurements can be made by the active signal conditioned output as well as the standard passive 10K Type II thermistor.

The Telaire T8700D Wall Mount Relative Humidity and Temperature Transmitter relative humidity transmitter is available in two sizes to suit the European and US markets as well as display and non-display options. The model is easy to install, through a two-piece enclosure and simple terminal blocks
Sensing Method Fully integrated humidity and temperature
Power Supply Requirements 18-30 VAC RMS, 50/60 Hz, or 18 to 42 VDC, polarity protected
Power Consumption Typical 0.7 W at nominal voltage of 24V AC RMS
Temperature Dependence 0.2% FS per °C (±0.11% per °F)
Flammability Classification UL94 5VA
Thermistor Type NTC 10 K W thermistor (passive)
Operating Conditions 32°F to 122°F (0°C to 50°C)
0 to 95% RH, non-condensing
Storage Conditions 40°F to 158°F (-40°C to 70°C)
Certification CE and RoHS compliant
Thermistor Accuracy ±1°C (15° to 35°C)
RH Sensing Element Capacitive polymer sensor
RH Accuracy (25°C) ±2.5% RH (20 to 80% RH)
±3.5% RH (<20% and >80% RH)
Active Temperature Range 0 to 50°C
Active Temperature Accuracy ±0.8°C @ 22°C
Ordering Information
Model Description Buy Online Price
T8700-D Telaire T8700-D Relative Humidity and Temperature Transmitter (Display Version, American Size) Buy  Now Sale $225.69
(Reg. $230.21)
Included Accessories
  • 1 - Users Manual