Simple & Powerful 4G LTE Connected No WIFI NeededWorks straight out of box via Verizon or AT&T LTE networkFully stand-alone unit. ZERO connection to existing networks or phone lines Instant Alerts 24/7 monitoring with instant notificationsAdjustable "safe ranges" and alertsView real-time conditions Easy to Use Dashboard Easy to use App or desktop dashboard allows for full management of systemView all units on 1 dashboardView real-time conditions anywhere! Integrated Battery Backup Monitoring works even during utility outageBe instantly notified when power fails and is restored! Comparison Chart Why Upgrade to PRO? Real-time Viewing of Conditions IncludedView exact conditions on demandJust experienced a power outage? Quickly check real-time conditions at no additional cost Best in Class temperature Accuracy and Reporting Included temperature probe for pin point accuracy 2X more historical temperature measurements (every 30 mins)Professional Level Support and FeaturesEnhanced dashboards to view multiple unitsMultiple username and business invoicing capable The MarCELL Pro Advantages Highest Reliability. Made in the USA, built for Professional Use Most Effective Alerts. With customizable phone call, text and email options 10+ years in production. 1000s of units in use protecting millions in assets Simplest Plug n Play Design in the industry What Makes MarCELL PRO the Clear Choice Why Use a Cellular Connection vs WIFI? Simple Installation Pre-activated and ready to work out of box! No complex figuring out IPs or questionable WIFI Works Even When Power Fails! WIFI monitors can't alert you when power failures occur. Receive alerts and view conditions in real-time when you need it the most! Secure and Independent Connection Stay protected - no risk of creating a "hacking entry point" on your internal network Completely Mobile and Works Nearly Everywhere! RVs, remote buildings, basements, cabins, nearly anywhere! Safeguard Network Rooms Without Reliance on Existing Network Eliminate a major risk of "riding on the network"No WIFI, Phone Line or Network Connection Needed - 100% independent Easy 5 minute set up - No Hubs to Configure!Instant Temp, Flooding, Humidity and Power AlertsEasy dashboards to view real time and historical conditions from anywhere Best in Class Temperature Protection for Pets Built and supported in USAPin Point Accuracy with Temperature ProbeIncluded Real-time viewing of conditionsUnlimited Instant alerts with phone call capability (Text and email also available) Safeguard Freezers and Refrigerators with Instant Alerts Get a phone call or text when temp goes outside safe rangesAccurately measure and log conditionsView trends anywhere and be instantly alerted to issuesAlerts even during power outages! (WIFI cant do that!) Easiest way to Protect Homes, Offices & Greenhouses Easiest way to avoid huge issues with no WIFI, phone line or network connection!Receive instant an phone call or text messages to up to 9 different numbers.Unit works normally even during a power outage (unlike WIFI solutions!) Easy Network Room Protection with No Network Connection Best in Class Protection for Pets Eliminate Freezer Failure Heartbreak with Instant Alerts Protection from the Worst Issues with Cellular Connection! Tech Specs Product Details Made in USA (USA based support also!) Temperature: 0°F - 100°F or -20°F - 127°F when probe is plugged in Relative Humidity: 10 - 95% non-condensing Battery Duration: 36 - 48 hours Unlimited Data History (view online or download) How it Works Simple Design Each device contains a pre-activated cellular modem. No need to connect to wifi or call a cellular provider to set upMove to any location without reconfigurationWorks even when power outage occurs! Installation takes only minutes Go online and register unitSet "safe zones" for temperature and humidityDetermine who should be alerted for different types of issues! (call ___ when temperature gets too high)Select and pay for cellular data service plan (plans start at 14.95 per month when paid annually)Plug in unit and all done!!