Ideal for a variety of industries such as HVAC, laboratories, hospitals, computer rooms, greenhouses, printing, film processing and more FAST RESPONSE & HIGH ACCURACY Temperature Humidity Min /max memory F/C switch Data hold freezes measured values Auto power off after 20 minutes Fits in your pocket Affordable Specifications: Temperature range: 14F to 122F (-10C to 50C) Humidity range 20 to 90% RH Temperature accuracy:1.8F (1C) Humidity accuracy: 5% Resolution: +/-0.1; 1% RH Power source: 1 "LR44" battery Dimensions: 5.9" x 0.8" x 0.6" Supplied With: Battery