Receive real-time alerts when temps drop below 45° F

Low temperature monitor phone message

Prevent damage by plugging our low temperature sensor into your unit to monitor air temperature. Instant alerts give you time to fix a furnace problem preventing costly damage from frozen pipes.

 The simple to use, text messaging, freeze alarm system.
It’s like installing peace of mind…

Cellular Water Alarm

Height: 5.5″ | Width: 3.5″ | Depth: 1.38″ | Weight: 6.4 oz | Indoor Use Only

Cellular Radio

CDMA2000 dual band 800/1900

Transmits SMS thru Verizon’s Network.

Dual Inputs

Monitors two inputs

Options include: water detection, float switch, low temp sensor (optional sensor), any dry contact input (custom option, not supplied).


2.9 kHz +/- 500 Hz, 100 dBA with wall power.

75 dBA (estimated) on backup batteries.

System Status Lights

Status: cellular connectivity

Battery: low battery notification (also chirps with critically low battery)


Temperature Sensor

Frozen pipes will lead to catastrophic damages to your property. With the freeze sensor available for our Cellular Alarm you’ll receive text message notifications immediately after detecting a temperature below 45°F.

Great for when you travel, installed at your vacation home or cottage, or at the properties you manage.

No, after clicking a “Buy Now” button or “Buy” from the main menu, you’ll land on the product page, you must then configure your device to receive the temperature sensor. Just select the temperature sensor from the sensors dropdrown menu.

1. Configure the Unit
With your unit in configuration mode, send the following message to your Cellular Alarm:
input2 LowTemp
Note: This will trigger an alarm and your unit will start to beep.
2. Connect the Sensor
Snap the connector into input 2 on the bottom of the water alarm unit.
Note: This should silence the alarm.
3. Test the Unit
Hold an ice cube or bag of ice against the bottom of the sensor and wait for an alarm. Do not submerge the sensor in water.
4. Installation is Complete
You will now receive a text message alert should the temperature in your property drop below 45 °F.

No, the temperature sensor is set to trigger at 45 °F. You will receive an alarm notification when the temperature drops below this level and a return to normal notification when it raises above the 45 °F threshold after an alarm.
All units as of February 14, 2014 include the low temperature messaging functionality, but not necessarily the sensors, which will need to be purchased separately. Any unit purchased on or before February 14, 2014 will not include the low temperature messaging functionality, but can still interface with the low temperature sensor. Users will simply receive message stating a high water alarm, rather than a low temperature alarm.

Isn’t your property worth protecting?

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Loaded with Features

What Are You Protecting?



Whether it’s where you stay, vacation, rent, or manage, use our device to monitor for leaks and floods, power failure and low temp.


Sump Pits

Pumping water from your sump basin is essential to keeping your basement dry. Prevent overflows with a text message capable sump pump alarm.



A healthy aquarium ecosystem requires power and water. Monitor critical aquarium systems with low water and power outage detection.


Water Tanks

From agricultural use to potable water retention, when you need to know high or low levels or monitor for power failure, we’ve got you covered.



From monitoring power to water detection in a bilge pump / engine room, we’ll give you timely alerts that will keep food from spoiling and your boat above water.


Server Rooms

When reliability and your reputation rely on power, you need notified when there’s an outage. Added water detection makes us a robust, but simple solution.


RV / Superbus

Traveling requires a mobile, yet reliable solution. Take with you to monitor power outage, low temps, and even water leaks while on the road and at home.


Furnace Monitor

Mixing freezing temps with a furnace failure leads to loads of wasted money in damages. Monitor low temp, power failure and water detection in your furnace room.

Looking for customer feedback?

Read Reviews on


This is an amazing device. From ease of setup to alert functionality to product support, it’s the total package.
Brian Z., From
Worked 2 days after installation. Saved my basement from flooding.
Anonymous from Brighton, MI
I had lamented for the last couple of years that there was no way of knowing the status of our sump pump, while we were away from home. Battery back up units just didn’t have the capacity to keep things dry. With the PumpAlarm I can know immediately when a problem begins and initiate a response before things get out of hand.
Thomas Jennings from Camby, IN, From
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