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Wireless Duct Temperature Sensor uses an NTC type thermistor with UL listed plenum cable to accurately measure temperatures in duct work, while maintaining a sealed environment. Can be easily installed and mounted for long term use. Use for supply, return and mixed air temperatures.


Thermistor Operating Range: -40°C to +150°C ( -40°F to +302°F )

Accuracy @ 25°C: +/- 1° C (±1.8°F @ 77°F)

User Calibrated Accuracy: +/- 0.25° C (±0.45°F @ 77°F)

Time Constant @ 25°C: 30 sec.

Lead Wire Length: 8 ft ( 96 in.)

Cable Rating: UL listed plenum cable

Weight:  0.7 oz.

Security: Encrypt-RF® (256-bit key exchange and AES-128 CTR)

Battery Type: Replaceable Standard AA

Dimension: 2.0 in x 1.125 in x 0.875 in

Max Operating Temperature: -7°C to +60°C ( 20°F to +140°F )

Optimal Battery Operating Temperature (Coin Cell): +10°C to +50°C ( +50°F to +122°F )

Supply Voltage:  2.0 - 3.8 VDC

Battery Life: At 1-hour heartbeat setting, battery will last up to 4 years. **

Enclosure Material: ABS

Operating Frequency: 900 MHz Operating Frequency


     Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)

     Complies with Industry Canada standards. (IC: 9794A-G2SC1)

Device Range: Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*

Security: Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)

Duct Temperature Sensor

    • Wireless Sensor w duct probe
    • One Battery
    • Mounting Hardware
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