Model 20647 Quantity 1 piece(s) per pack Color Blue + white Material Plastic Specification Can be used as thermometer hygrometer time and alarm clock; Powered by 1 x AAA (included) Other Features 4.0" LCD temperature range: 0~50'C (32~120'F); Temperature precision: +/-1.0'C (+/-1.8'F); Temperature resolution: 0.1'C (0.1'F); Humidity range: 30%~90%RH; Humidity precision: +/-5% (40%~80%); Auto record max. and min. temperature and humidity value; 12/24 hour format; Auto sensor wrong measurement and beyond measuring range showing --.- or --%; Function: MODE: set time / alarm clock; ADJ: adjust set value and shift 12 / 24 hour format; MEMO: display max and min temperature and humidity value shift 'C / 'F; Reset: clear all set and records returning to original state; Time set: press MODE for 3s minutes begins flashing press ADJ adjust minutes time then set hour as the same; Alarm clock: start: press MODE when hearing "DI" sound press ADJ then press MODE for confirmation; Close alarm clock: the same as set alarm clock; Set alarm clock: press MODE when hearing DI sound press MODE for 3s minutes begins flashing press ADJ to adjust minutes then set hour the same as set minutes Packing List 1 x Thermometer 1 x AAA battery 1 x English user manual