The MarCELL monitor is designed to give you peace of mind—whether you’re keeping tabs on temperature, humidity, or power status in your RV, unoccupied property, or anything else that matters.

MarCELL Pro is an advanced remote monitoring device that measures indoor temperature, relative humidity and power status for commercial and industrial applications.

MarCELL is a remote monitoring device that measures indoor temperature, relative humidity and power status in your home, RV, greenhouse, etc. The setup is simple, with an intuitive interface that allows …

Browse our full selection of MarCELL monitoring systems and accessories to protect homes, greenhouses, RVs, and more.

Find clear answers to common questions about MarCELL devices, subscriptions, setup, alerts, and troubleshooting. Explore our full MarCELL FAQs to get the most out of your remote monitoring system.

Explore all MarCELL subscription plans and choose the right option for your monitoring needs. Compare annual, monthly, and seasonal plans for MarCELL Multisensor, Pro, FarmCELL, and NIST devices.

Nov 27, 2025 · Learn how MarCELL works to protect your home, RV, farm, or business. Discover how its cellular monitoring, instant alerts, and battery-backup system keep your property safe—no Wi-Fi …

Explore the MarCELL sensor comparison to evaluate features, specs, and benefits across all MarCELL monitoring devices and choose the ideal solution for your needs.

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 …

Keep your second home safe year-round with MarCELL’s second home temperature monitoring system. Get instant alerts for temperature, humidity, power loss, and water leaks—no Wi-Fi required.