ALTA low temperature sensors

Low Temperature Sensors

Keep the critical ultra-cold.

Many products, vaccines, pharmaceuticals, and research samples have varying development, production, and storage needs. They all require resilient, reliable, and proactive monitoring during the cold chain. Our award-winning* ALTA® Low Temperature Sensors are a vital tool for pharmaceutical and health care professionals, food manufacturers, and distributors.

Whether keeping vaccines in an ultralow temperature (ULT) freezer throughout your cold chain, remotely monitoring logistics for frozen commodities to and from warehouses, or cadaver storage monitoring in a morgue, you can count on ALTA Low Temperature Sensors. The instant temperatures rise above your preset limits; you get a sensor alert sent via text, email, or call.

The Highlights of Low-Temp Sensors

Smart building-ready ALTA Wireless enterprise-sized AA battery-powered and industrial-grade, PoE•X* Power over Ethernet (PoE), MoWi* Wi-Fi 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. They’re perfect for ULT freezers for vaccines, some of which require temperatures to be -80°C/-112°F and below.

Low Temperature Sensors are compliant data loggers to help you meet record-keeping and chain-of-custody regulations outlined by the Centers for Disease Control and Prevention (CDC) and Title 21 Code of Federal Regulations (CFR) Part 11 from the U.S. Food and Drug Administration (FDA).

These 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.

*Monnit won the 2022 Pandemic Tech Innovation Award and the 2022 IoT Innovator Award for the Low Temperature Sensor.

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.
  • 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.



2,000+ ft. Range through 18+ Walls
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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