MarCELL PRO is a simple, cost effective, cellular connected data logger and remote notification device. Enhanced features included with the MarCELL PRO Monior with Water Sensor bundle includes: - Improved frequency of temperature and humidity logging (every 30 minutes) - Includes 20 monthly "real time" updates to view up-to-the-minute conditions on demand - Unlimited online storage of historical data readings - Includes 6 foot long waterproof temperature probe with -20 to 120 degree F range - Ability to create "read only" users for guest access into online portal - Dashboard view allows for easy monitoring of multiple units - Monitor conditions 24/7 and be alerted to potential issues remotely! - Subscription costs ($14.95 per month - billed annually or $24.95 per month when on month-to-month) includes all online hosting, cellular connection fees, and unlimited text, phone and email alerts. - Backed by 30 day guarantee and 2 year warranty! - Designed and manufactured in USA.