Digital Room Thermometer Hygrometer( S-WS07) * Digital Room Thermometer Hygrometer, used to record the indoor temperature and humidity * Thermometer with high accruacy and pass CE and RoHS * Thermometer theory: Thermometer Hygrometer Description: * Environment comfort display: " COMFORT" , " WET" , " DRY" * Time/ Temp. / Humidity indicate. * º F and º C temperature switch function. * MAX& MIN Temperature and Humidity memory function. * Calendar, Alarm clock, announce hour and 12/ 24 hours system clock. * 1.5V AAA( 7# ) battery Parameters: * Temperature measuring range: 0 º C ~ + 50º C ( + 32º F ~ + 120 º F ) * Temperature accuracy: ± 1.0 º C ( ± 1.8º F ) * Temperature resolution: 0.1 º C ( 0.1 º F ) * Humidity measuring range: 10% RH~ 90% RH * Humidity accuracy: ± 5% RH( 40% ~ 80% ) other ± 8% RH Size: * Unit size: 110( L) x59 ( W) x14( T) mm * Display size: 60x40mm