Buy MarCELL Pro Freeze Alarm2021-08-02T11:37:41-04:00

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MarCELL Pro Freeze Alarm


  • Monitors temperature, humidity & power
  • Sends instant alerts via text, call or email
  • Includes an extended temperature probe
  • Uses 4G cellular connection (No Wi-Fi needed)
  • Requires a Subscription Plan
  • Proudly Made in the U.S.
Customer Reviews

MarCELL Pro Freeze Alarm is an advanced remote monitoring device that measures indoor temperature, relative humidity, and power status. Equipped with an external temperature probe, it is primarily used to monitor commercial refrigerators, coolers, and walk-in freezers. The external probe is 72″ (6 feet).

The setup is simple, with an intuitive interface that allows you and your team to set custom parameters for temperature and humidity ranges. If temperature or humidity exceed the ranges you select or power is lost, you (and up to 9 people) will be immediately contacted by your preferred method of phone, text or e-mail.

MarCELL Pro Freeze Alarm detects water leaks with the addition of a SPuck water sensor. In an open field with a clear line-of-sight, there is solid communication between a SPuck and a MarCELL of well over 320 feet.


  • Height – 1.2″
  • Width – 2.0″
  • Length – 5.2″

External Probe:

  • Length – 72″
  • Power Input:
  • Wired AC Adapter, 5V @ 2A


  • Internal Li-Ion Rechargeable
  • Lasts up to 48 hours when fully charged

Operating Range:

  • Ambient Temperature: -20°F to 127°F
  • Relative Humidity: 10% to 95%, non-condensing

MarCELL Pro Freeze Alarm is adaptable for your needs and can be used in a variety of different environments. This device is suitable for:

  • Refrigerators
  • Coolers
  • Walk-In Freezers

MarCELL subscription plans provide you with a cellular connection for your device, real-time
reporting of any issues and access to our website to view device status / historical information
on temperature, humidity, power status and alarms.

A monthly connection fee (as low as $14.95/month) is required. There are no long term contracts required and you pay only for the months you would like service. You will select and pay for your MarCELL subscription plan when activating the device through our website or mobile app.

MarCELL uses Verizon and AT&T’s cellular network to provide the widest range of coverage and can be used anywhere there is a cellular connection. For those intending to use the device in Canada, we recommend AT&T as the preferred network.

Why MarCELL Pro?

Protecting what you value most is our #1 priority — our solutions are specifically designed to provide you with absolute peace of mind.

Subscription Plans

Choose between:


$2495Per Month
  • Billed Every Month


1495Per Month
  • *Billed for 12 Months

*You will select and pay for your MarCELL subscription plan when activating the device through our website or mobile app.*


Devices connected to the Verizon network can operate in the U.S and Puerto Rico only. We also offer an AT&T version of MarCELL which operates in the U.S, Canada, and Mexico.

Yes. MarCELL is a cellular connected device using Verizon and AT&T networks. Monthly plans start as low as $8.25/month. Views plans here.

No, MarCELL uses its own independent 4G data connection. It does not require Wi-Fi, fixed broadband, or an existing phone line.

MarCELL Pro logs a reading every 30 minutes and uploads it to the dashboard every 8 hours. To view your readings in real-time, you can use Instant Update bundles. The Pro comes with 20 free Instant Updates a month, you can purchase additional updates which cost $2 for 8 Instant Updates. NOTE: As part of your cellular plan with MarCELL, you will receive immediate real-time alerts at no additional cost. immediate real-time alerts at no additional cost.

We’re confident MarCELL will the perfect solution for your needs! In the case that you are unhappy with the device, you can return it for a full refund within the first 90 days, no questions asked.

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