MarCell M2-ATT Cellular Temperature, Freeze, Power Alarm

Save $50
MarcellSKU: M2-ATT

$249 $299


MarCELL M2-ATT Cellular Temperature, Freeze, Humidity and Power Alarm for Canada

The MarCell M2-ATT monitors ambient room temperature, humidity and power in homes, cottages, remote properties RVs and mobile homes and provides alerts in case of a problem. 

  • 24/7 Monitoring
  • Monitor Temperature, Humidity, Power
  • Immediate Alerts by Email, Text or Voice
  • Uses fast and reliable 4G cellular
  • Works even when Internet or Power Fails
  • Built in battery lasts up to 48 hours without power
  • Monitor by web browser or on the go with the app



Keep your property, livestock or pets safe from unsafe high temperatures and freezing with MarCELL. Protect your property from potential damage caused by low temperatures or power failures leading to burst pipes.

Users can set acceptable temperature and humidity ranges. If the room temperature or humidity goes outside this range, or in case of a power failure, the MarCell will send a notification by text, email or voice call.


In case of a power failure, hi/low temperature or humidity trigger, MarCELL will send an immediate alert.  You can choose up to 10 people to receive the alerts by email, text or voice call.


Users can check the status any time using a web browser or Internet-connected smartphone.



Marcell provides a direct connection via cellular and does not rely on your WiFi or Internet connection, even when the power or Internet fails.  MarCELL can operate up to 48 hours without power with the built in battery.   No landline phone or Internet service is required at the monitored location.

Marcell Cellular Advantage


Easily view current status, historic data trends and gain valuable insight over conditions.

Marcell Dashboard



This affordable service offers the following plans that include the cloud service, MarCELL cellular connection and free apps:

$8.25 per month (annual plan 12 months)
$11.95 per month (seasonal plan 4-8 months)
$14.95 per month (monthly plan)
(Priced in $USD)

Set up is very easy, just create an account at connect the device to power and set up your alert preferences online using their cloud service! To purchase subscription plans click here.

MarCELL M2 ATT Features

  • Monitors temperature, humidity and power status (power failure)
  • Will alert on freeze or hi/low temperature and humidity
  • Will alert on power failure and also power restoral
  • Supervised heartbeat will send notification in case of communication loss
  • No landline or Internet needed at monitored location, uses AT&T for USA and Rogers for Canadian users with roaming agreements in place for Telus and other carriers automatically as needed
  • Easy to install and set up
  • Perfect for homes, cottages, remote homes, remote business locations
  • Data is logged hourly in case of no alarms
  • In case of an alarm, user is notified right away by telephone call, email or text message
  • Easy cloud set up and access using a web browser or Internet-enabled smartphone
  • Built-in rechargeable backup battery in case of power failure. last 24-48 hours in case of a power failure


MarCell M2-ATT Specifications

  • Power: 110VAC to 5VDC, 2A plug in power adaptor
  • Temperature Alarm Range: 0F to 100F (-7 to 37C)
  • Humidity Alarm Range: 0 to 100% RH
  • Rechargeable Battery: Internal 3.7V 800mAh Li-ion rechargeable (included)

MarCell M2-ATT Includes

  • 1 x MarCELL M2 Canada
  • All required batteries, power cords etc.


MarCELL Instructions


Note: This new model replaces the MARCELL-ATT and MAR500 models.

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