🚨 Freeze Warn I Battery Beacon Light

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$69.95
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SKU: FREALM013

Automatic Low-Temperature Warning with Thermo-Switch Activation


Quick Specs

🌡 Activation Point: 42 °F (6 °C)
🎯 Accuracy: ± 3 °F (± 1.5 °C) typical
🧪 Sensor Type: Thermo-switch with 20 ft cable
🔋 Power Source: (2) D batteries (included)
📆 Battery Life: ≈ 500 hours (≈ 21 days flashing) – replace annually
🏠 Operating Range: Indoor use only
💡 Flash Function: Light activates automatically at/below 42 °F
📏 Dimensions: 5 H × 3.5 W × 3.5 D in
⚖️ Weight: 2.1 lb (with batteries)
🧲 Mounting: Magnetic base for quick installation
💧 Protection Rating: IP66 (sealed against dust and moisture)


📦 Browse the related products below to find Freeze Guardian systems, replacement sensors, and mounting accessories that integrate seamlessly with this model.

🛒 Add to Cart Now or 📞 Call 1-800-TIP-TEMP for expert guidance.

Includes: Batteries, Magnetic Base and 14 Ft. Sensor Cable

Notable Features

Key Features

✅ Automatic freeze alert at/below 42 °F (6 °C)
✅ Ready to use right out of the box – batteries included
✅ Magnetic base for easy mounting on metal surfaces
✅ Bright flashing LED beacon for high-visibility alert
✅ Long-life design for seasonal or continuous use
✅ Ideal for garages, unheated rooms, or critical storage areas


The Freeze-Warn Light System is a complete, self-contained, self-powered signal system with magnetic base. Rugged Preset Thermostat turns on flashing lights at 42°F. The light will automatically stop flashing when the temperature rises to 52°F. Battery-powered to give its warning even when electrical power is off or the telephone is out. Uses (2) standard D-Cell Alkaline batteries (INCLUDED). So stop crossing your fingers each time you worry about thermal abuse.

The Freeze Warn I and its bright red flashing light alerts friends, neighbors or caretaker to possible heat loss danger. Simple to understand, test and use. No complicated writing or installation required. The choice of real estate professionals; ski, vacation and weekend homeowners; farmers, fuel and oil dealers. Rugged, reliable, low-cost protection against the worry and cost of frozen water pipes or burst water pipes if your heating system should fail while you're away.

Before you leave your home you should Test the Freeze Warn Light: Simply place the sensor portion inside your freezer. Close the door on the wire. With the light outside the Freezer wait 3-4 minutes the light will begin to flash. Remove the sensor from the freezer, place the sensor in your hands to warm it up. The light will turn off. TEST COMPLETE! The Light Consumes NO Power if the temperature is above 42°F. Notify your friends, neighbors or relatives when you're away.

View our entire list of Freeze Warn Lights

Note: Contact TIPTEMP about humidity warning lights or other custom designs.

Type of Sensor: Thermo-Switch
Temperature Sensing Range: Thermal Switch Activates Light @ 42°F
Operating Temperature Range: Indoor Use Only
Temperature Accuracy: +/- 3°F (+/- 1.5°C) typical
Temperature Scale: °F and °C
Sensor Wire Length: 20 Ft.
Min/Max Memory: No
Dimensions: 5" H x 3.5"W x 3.5"D
Weight: 2.1 lbs.
Power: 2 "D" Batteries Included
Battery Life: 500 hours / 21 Days (flashing) / Replace Annually
IP Rating: IP66
  • (1) Freeze Warn Light with Magnetic Base
  • (2) "D" Size Batteries
  • (1) 14 Ft. Extension with Sensor
  • (1) Instruction Manual
  • 100% Guarantee - if you're not satisfied return for refund ( within 30 days )
  • Expert Technical Support

Place Freeze Warn disc thermostat as close as possible to regular house thermostat or middle of room. Place signal light in window or other location where it is sure to be seen. When you are going to be away, just tell your friends and neighbors, fuel dealer, neighborhood watch, patrolling officer or use our custom made ALERT sign so anyone else who may pass by your house can take action if they see the Freeze Warn signal flashing.

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