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Low Temperature Sensors

Keep the critical ultra-cold.

Whether it’s keeping COVID-19 vaccines at ultralow temperatures in a freezer throughout your cold chain, remotely monitoring logistics for frozen commodities to and from warehouses, or cadaver storage monitoring in a morgue, firms count on ALTA® Low Temperature Sensors. The instant temperatures rise above your preset limits, a sensor alert is issued via a text, email, or call.

The Highlights of Low-Temp Sensors

Smart building-ready wireless, Power over Ethernet, enterprise-sized AA battery-powered, and industrial-grade sensors are available. All wireless and PoE sensors have a 3’ probe lead; 10’ and 25’ leads are optional. Each low-temp sensor can help you remotely monitor a range of temperatures at +/- 0.5°C calibrated accuracy from -200°C to 0°C/-328°F to 32°F. This is perfect for ultralow temperature (ULT) freezers for vaccines, some of which require temperatures to be -80°C/-112°F and below.

These low-temperature sensors excel in dry, low-humidity areas; spec Monnit Thermocouple Sensors, for high-humidity, high-temperature locations.

WARNING: The Low Temperature Sensor should not be used in submersible applications. It may be used in liquid nitrogen applications without concern for sensor failure.

Wireless Low Temperature Sensor - AA Battery Powered
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Enterprise Wireless

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Industrial Wireless Low Temperature Sensor
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Industrial Wireless

  • Industrial Battery Powered
  • Up to 7 Years Battery Life
  • Specifications

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PoE Sensors
PoE•X Low Temperature Sensor
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PoE•X - Power over Ethernet

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WiFi Sensors
Wi-Fi Low Temperature Sensor
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MoWi - Wi-Fi

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Which Sensor is Right For Me?

  • Enterprise AA-battery powered: Our most popular type is ideal for typical commercial & enterprise environments, such as server rooms. A 1,200+ ft. range readily covers most facilities.
  • CC-battery powered: Compact sensor is great for space-restricted areas such as control cabinets or cold storage.
  • Industrial: Sensor's weatherproof, NEMA-rated enclosure withstands demanding indoor/outdoor use, e.g., warehouses & production facilities.
  • PoE•X: Power over Ethernet sensors integrate with a building's PoE network; it can also be used with a standard Ethernet infrastructure & powered via an optional AC adapter.
  • MoWi: This discreet sensor uses your own Wi-Fi for networking and data transmission—popular for smaller businesses and facilities.
Still not sure which sensor type to choose? Visit our Sensor Comparison page.



1200+ ft. Range
Up to 12 Years of Battery Life
Automated Data Logging


Unbeatable Range Eases Networking
Dependable, Worry-free Operation
Streamlined Compliance & Data Analysis

How Monnit Sensors Work

how Monnit remote monitoring works

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