Gemwel | Monnit Wireless Temperature Sensor – Commercial AA Battery Powered
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Monnit Wireless Temperature Sensor – Commercial AA Battery Powered

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Quick Overview

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Monnit wireless temperature sensors use a thermistor to accurately measure temperatures. These sensors are perfect for monitoring ambient temperatures around the sensors physical location. User customization allows you to set the frequency of readings and the ability to set thresholds for alerts via SMS text and/or email.

NIST certified product is available on leaded temperature sensors (select a lead length in order to see available certifications).

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.

  • Accurate to +/- 1°C (1.8°F)
  • Available with an external temperature probe

Thermistor Specifications

Sensing Element Thermistor
Thermistor Operating Range -40°C to 125°C
Accuracy @ 25°C +/- 1%
B-Constant (25°C – 50°C) 3380 ± 1%
Permissive Operating Current @ 25°C 0.38 mA
Rated Electric Power @ 25°C 15 mW
Dissipation Constant @ 25°C 1.5mW/°C
Time Constant @ 25°C 7 sec
Resistance @ 25°C 10K ± 1%

AA Specifications

Battery Type 2 Replaceable AA 1.5 V Batteries
Dimension 4.375 in x 2.470 in x 1.12 in
Sensing Element 2.0 – 3.6 V (2 x AA 1.5V Batteries or Optional Power Supply)
Device Range 250 – 300 ft. non-line-of-sight device range*
Battery Life At 1 hour heartbeat setting, included AA batteries will typically last 3-4 Years. **
Max Operating Temperature Using AA Alkaline -18°C to 55°C (0°F to 130°F)
Max Operating Temperature Using AA Lithium -40°C to 60°C (-40°F to 140°F)
Optimal Battery Operating Temperature +10°C to +50°C (+50°F to +122°F)
Enclosure Material ABS

900 MHz Specifications

Operating Frequency 900 MHz Operating Frequency
Certifications Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-RFSC1)
Complies with Industry Canada standards. (IC: 9794A-RFSC1)

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