Professional Level Temperature, Power and Humidity Monitoring without WIFI

  • Ready out of the box via pre-activated 4G LTE

  • Instant alerts & 24/7 monitoring

  • Temperature probe capable

  • USA manufactured and Lifetime warranty

  • Cost effective at 50-80% less than alternatives

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Two women and a man working on a server rack with cables, using laptops and testing equipment in a data center.
Golden retriever lying on a bed inside a camper van, with outdoor scenery visible through the windows.
Inside a commercial walk-in refrigerated storage room with metal shelving on both sides holding various food supplies such as produce, packaged items, and condiments. There are signs indicating the cooler and freezer sections, with the center door leading to further storage.
Ice-covered bushes and icicles hanging from the roof of a brick building on a rainy winter day. MarCELL PRO would protect against an issue like this by instantly alerting the owner if power is lost or heat stops working inside the building
Inside a greenhouse with rows of green leafy plants growing in soil beds. MarCELL PRO is great at monitoring greenhouses for temperature, humidity or power without WIFI
A boat partially submerged and tilted in icy water at a marina during winter, covered with snow. MarCELL PRO would prevent this from happening by alerting the owner that high water in the bilge has been detected

Easy Solutions for Any Monitoring Problem

Server Room Environmental Monitor Server Room Environmental Monitor
Server Room Environmental Monitor
$185.00

Stay ahead of potential server room hazards with MarCELL PRO.

  • Be the first to know about a power outage or HVAC issues

  • 100% Stand alone system with battery backup and independent 4G LTE connection

  • 24/7 real-time monitoring and instant alerts (including phone call)

  • Zero set up and integration issues. No central hub or “pairing” needed. No WIFI or network needed

  • Easy to view trending and management of all units via online dashboard

  • Deployable in minutes with no technology or compliance approvals necessary

What’s in the box:

  • MarCELL PRO base unit

  • 110V standard power adaptor

Specifications:

  • Monitoring points (every 6 seconds): Power, Humidity, Base Unit Temperature

  • Alert types: Email, Text & Phone Call to 9 different Recipients

  • Connection: 4G LTE (SIM Card Fully Installed and Activated)

  • Maximum number of devices on one account: Unlimited

  • Maximum number of additional “read only” access user names: Unlimited

  • Maximum number of alerts dispatched: Unlimited

  • Temperature range: -20F to +130F (custom solutions available)

  • Real-time viewing of conditions online: Yes - Included

  • Temp Data History Captured:‍ ‍Yes, Every 30 minute intervals - stored for unlimited amount of time

  • Patented, Manufactured, Supported: in USA

  • Cellular data subscription options:‍ ‍Month to Month at $24.95 or $14.95 per month when paid annually. (Paid during registration - no contract necessary)

  • Warranty:‍ ‍Lifetime warranty & satisfaction

Need a custom quote for multiple units and/or cellular data included? Contact us at info@marcellpro.com or text 415.669.4776

Professional Level Pet Protection Professional Level Pet Protection Professional Level Pet Protection
Professional Level Pet Protection
$199.00

#1 Most Reliable and Powerful Monitoring System Available

  • Highest device reliability and connection strength available

  • ‍High accuracy temperature probe included

  • Instant alerts - Including phone call notifications to keep your pets safe

What’s in the box:

  • MarCELL PRO base unit

  • 6 foot high accuracy temperature probe

  • 110V standard power adaptor

  • USB power adaptor

Specifications:

  • Monitoring points (every 6 seconds): Power, Humidity, Base Unit Temperature OR Probe Temperature

  • Alert types: Email, Text & Phone Call

  • Connection: 4G LTE (SIM Card Fully Installed and Activated)

  • Maximum number of devices on one account: Unlimited

  • Maximum number of alerts dispatched: Unlimited

  • Temperature range: -20F to +130F (custom solutions available)

  • Real-time viewing of conditions online: Yes - Included

  • Temp Data History Captured:‍ ‍Yes, Every 30 minute intervals - stored for unlimited amount of time

  • Patented, Manufactured, Supported: in USA

  • Cellular data subscription options:‍ ‍Month to Month at $24.95 or $14.95 per month when paid annually. (Paid during registration - no contract necessary)

  • Warranty:‍ ‍Lifetime warranty & satisfaction guaranteed! (try for 30 days risk free!)

Dual Freezer & Refrig Monitor Dual Freezer & Refrig Monitor Dual Freezer & Refrig Monitor
Dual Freezer & Refrig Monitor
$209.00

Monitor 2 temperatures via one unit with separate safe zones!

  • Eliminate risk of breaker tripping or power outage going unnoticed

  • Be fully compliant for monitoring requirements (CDC, HACCP and USDA approved method)

  • Instant alerts sent to any phone number(s) when either temperature goes beyond safe ranges you establish

  • Excellent for easily monitoring both walk in refrigerators and freezers with one device.

What’s in the box:

  • MarCELL PRO base unit

  • 6 foot high accuracy temperature probe

  • 110V standard power adaptor

Specifications:

  • Monitoring points (every 6 seconds): Power, Humidity, Base Unit Temperature, Probe Temperature

  • Alert types: Email, Text & Phone Call

  • Maximum number of devices on one account: Unlimited

  • Maximum number of alerts dispatched: Unlimited

  • Temperature range: -20F to +130F (custom solutions available)

  • Real-time viewing of conditions online: Yes

  • Temp Data History Captured:‍ ‍Yes, Every 30 minute intervals - stored for unlimited amount of time (Fully HACCP and USDA compliant for monitoring)

  • Patented, Manufactured, Supported in USA

  • Cellular data subscription options:‍ ‍Month to Month at $24.95 or $14.95 per month when paid annually. (Paid during registration - no contract necessary)

  • Warranty:‍ ‍Lifetime warranty

Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor Home & Office Monitor
Sale
Home & Office Monitor
from $199.00

Prevent hazards with MarCELL PRO - The easiest solution for protection

  • Eliminate risks of frozen pipes with 24/7 temperature and power monitoring

  • Be instantly notified via phone call, text or email or any issues.

  • Remotely view real-time conditions from any computer or phone

  • 100% Stand alone system with battery backup and independent 4G LTE connection

  • 5 minute set up with No WIFI or existing connection needed

What’s in the box:

  • MarCELL PRO base unit

  • 110V standard power adaptor

  • Add optional Wireless Water Sensors or Temperature Probe

Specifications:

  • Monitoring points (every 6 seconds): Power, Humidity, Base Unit Temperature or Temperature Probe

  • Alert types: Email, Text & Phone Call to 9 different Recipients

  • Connection: 4G LTE (SIM Card Fully Installed and Activated)

  • Maximum number of devices on one account: Unlimited

  • Maximum number of additional “read only” access user names: Unlimited

  • Maximum number of alerts dispatched: Unlimited

  • Temperature range: -20F to +130F (custom solutions available)

  • Real-time viewing of conditions online: Yes - Included

  • Temp Data History Captured:‍ ‍Yes, Every 30 minute intervals - stored for unlimited amount of time

  • Patented, Manufactured, Supported: in USA

  • Cellular data subscription options:‍ ‍Month to Month at $24.95 or $14.95 per month when paid annually. (Paid during registration - no contract necessary)

  • Warranty:‍ ‍Lifetime warranty & satisfaction

Need a custom quote for multiple units and/or cellular data included? Contact us at info@marcellpro.com or text 415.669.4776

Shop All

MarCELL PRO Advantage:

  • Pre-activated cellular SIM Card

  • No WIFI, gateways, phone line or existing network is needed

  • Real-time dashboard for customized safe zones, alerts and viewing historical data

  • Never miss an alert with Phone Call, Email or Text message options

  • Combine units for easy enterprise level monitoring

Google Play and Apple App Store download buttons - MarCELL PRO has app called sensored life
Sign promoting cellular connectivity with statements "Monitor what matters" and "Ready-to-Go 4G LTE Celluar Connection" indicating no WiFi or existing network needed.

Monitor All Important Conditions

Professional Level Monitoring of Temperature, Humidity, Power and Flooding all in one package

  • Add a temperature probe to increase accuracy or measure anywhere!

  • Add a wireless water sensor to receive instant alerts if water is detected

Icon of a thermometer - MarCELL Pro monitors temperature

Temperature

Icon of a lightbulb indicating power monitoring.

Power Loss

A simple blue outline of a water droplet indicating humidity. MarCELL PRO monitors humidity

Humidity

Shower faucet with a water droplet. MarCELL PRO can monitor water or leak detection

Flooding / Water Leaks

Easy Set Up with Instant Alerts and Real-Time Data

Multiple electronic devices, including tablets and smartphones, displaying graphs and data related to temperature, humidity, and power status, with a central MarCELL Pro device in front. MarCELL PRO Allows real-time viewing of conditions
Quick Setup
Sets up in minutes. Comes with a pre-activated cellular connection — no SIM card or provider setup required.
Instant Alerts
Receive phone calls, text messages, or email alerts instantly when conditions change.
View Real-Time Conditions Anywhere
View real-time dashboards on any device. Includes enterprise-level monitoring for multiple units.
Award Winning USA Based Support
Quality customer service. USA designed and built. Lifetime warranty
Industry Best Lifetime Warranty
Industry best warranty and dedicated technical support if you ever need it. Designed, supported and manufactured in the USA

View plans and how it works

Thousands of 5* Reviews, Industry Best Warranty, USA Manufactured & Supported

  • "My 5th sensor. Thanks for the sale and discount code."

    Valerie G.

  • “Very well laid out and easy to use”

    Nicole B.

  • Been using MarCell Sensor for years. Best device I ever bought"

    Ben S.

  • "Friendly and knowledgeable customer service staff"

    K. W.

  • “No WiFi. YES!!!!!!!!”

    Timothy T.

  • “Already saved us hundreds of hours manually checking temps”

    Marcus M.

  • "Made in USA plain and simple info. Thanks"

    Harry N.

  • "This is a second unit - I have found them to be reliable and very comforting"

    Joe C.

Why MarCELL PRO:

Comparison chart of MarCELL PRO features with other monitors, listing features such as 24/7 LTE monitoring, instant alerts, phone call alerts, business invoicing, temperature probe, wireless water detection, and multi-unit management.