THERMOMETER, REFRIDGERATOR FREZER FSHSCI Nontoxic glycol solution in bottle insulates sensor from rapid temperature changes when door is open Triple display shows high, low, and current temperatures, and min./max. feature monitors high and low readings for any time period Alarm feature provides an alert when temperature rises above or falls below a setpoint Ten-foot microcable permits refrigerator doors to close on it Velcro® fasteners and magnetic strips are provided for mounting of both thermometer and bottle sensor Supplied with one-year AA battery 1°C Resolution