wireless AA high temperature sensor on commercial oven

High Temperature Sensors

Monitor high-stakes applications.

Monnit ALTA® High-Temp Sensors remotely monitor commercial ovens, heaters, furnaces, boilers, and other can’t-fail applications with a -50°C to +370°C (-58°F to +700°F) temperature range. A temperature swing will trigger a sensor alert for you (or onsite personnel) via email, text, or call.

Get Your Temp Data Your Way

Choose from enterprise, industrial-grade, or Power over Ethernet (PoE) sensors to monitor smart facilities and production lines, or track HVAC performance. Each employs a glass-coated platinum resistance thermometer (RTD) for accuracy. An industry-leading 25-month NIST Certification is available.

These wireless and PoE high-temperature sensors excel in dry, low-humidity areas; select a Monnit Thermocouple Sensor for high-humidity, high-temperature locations.

Start tracking high-temp machines and processes today with one of the high-temp sensors below.

Wireless High Temperature Sensor - AA Battery Powered
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Enterprise Wireless

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Industrial Wireless High 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 High Temperature Sensor
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PoE•X - High Temperature

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WiFi Sensors
Wi-Fi High 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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