Description

The Monnit 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.

Monnit Industrial Sensors come in an IP65, NEMA 4X, CE rated, sealed, and weatherproof enclosure. They are powered by a single, replaceable, Industrial grade 3.6 V battery (included).

An optional solar powered version is also available. The solar powered version includes a Lithium Iron Phosphate rechargeable battery in conjunction with a solar power cell to keep the battery charged and at optimal capacity. If there is no light present at the solar cell, the battery alone could continue to power the sensor for up to 5 years.



Features

  • Probe temperature range of -40°C to +150°C ( -40°F to +302°F )
  • Accurate to +/- 1° C (+/- 1.8°F)
  • User Calibrated Accuracy +/- 0.25° C (±0.45°F @ 77°F)
  • UL listed plenum probe cable

  * Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.


Data Snapshot

Monnit duct temperature sensor data view in software

In the Box

  • Wireless Sensor
  • Mounting Hardware
  • 3V Industrial Battery (Pre-Installed)
  • SMA Antenna
 

Duct Temperature Sensor Specifications

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 3.7 oz.
 

Industrial Specifications

Dimension 3.7 in x 2.32 in x 1.38 in
Max Operating Temperature -40° to 85°C (-40° to 185°F)
Device Range 300 - 350 ft. non-line-of-sight device range*
Supply Voltage 2.0 - 3.6 V
Battery Type Replaceable 3.6V, 1800mAH (single AA sized)
Optimal Battery Operating Temperature +10°C to +50°C (+50°F to +122°F)
Battery Life Up to 7 Year Battery Life.**
Solar Power Option 5 VDC Solar Panel
600 mAH Rechargeable Battery (>2000 Charge Cycles - 80% of Initial Capacity)
Charging Temperature Range: 0° to 45°C (32° to 113°F)
Max Temperature Range: -20° to 60°C (-4° to 140°F)
Enclosure Material IP65, NEMA 4X, CE rated, sealed, weatherproof enclosure
UL Rating UL Listed to UL508-4x specifications (File E194432)
 

868 MHz Specifications

Operating Frequency 868 MHz Operating Frequency
Certifications CE Certified and Complies with CISPR 22:2008-09 / EN 55022:2010 - Class B and ETSI EN 300 220-2 V2.4.1 (2012-05)
Specifications Image

Suggested Application Uses for This Sensor

  • Air Duct Temperature Monitoring
  • HVAC Operation & Testing
  • Data Center Monitoring
  • Coolers & Freezers
  • Environmental Monitoring
  • Smart Machines & Smart Structures