32*17cm Intelligent Hygrometer Termometer Temperatury Humidity Meter 13" LCD Digital Screen with Sound Alarm function Multifunction: Temperature measurement Humidity measurement Upper and lower alarm settings External alarm setting 4 fixed methods Wall hanging Hanging Hidden bracket External bracket (With 1/4" thread interface) Specifications: Power Supply: 5V / 1A Sensor type: for Swiss high precision digital sensor (SHTC 32 sec/ for time) Temperature range: -20~80C (-4~176F) Temperature accuracy:1C Temperature resolution:1.0C Humidity range: 0- RH Humidity accuracy: 4% RH Humidity resolution: 0.1& RH Temperature alarm set range: Hi -19C~60C(-2F~140F), Low -20C~59C(-2~138F) Humidity alarm set range: Hi 2~99%RH, Low 1~98%RH Alarm duration Set range: Factory default 6 seconds. 6 seconds 70 seconds (cyclic addition and subtraction) Display mode:Digital tube display,Display size: 1.8 inch single word Maximum display: Temperature 80C, HumidityRH Sampling rate: 3times/s Over range display:Top digit displays "Hi" or "Lo" Work environment:0-40C(32-104F), relative humidity is less than 80% Altitude:2000m Working temperature:-20~80C (-4~176F) Storage temperature and humidity:0-60C(-2~138F), 45%~80%RH Power supply:AC input, output 5V 1A adapter Product size:323x173x40mm (L*for W*H) Product net weight:about 700g Package included: 1x Packing color box 1x Host 1x English instruction 1x Power USB 2x Hanging hook 2x Screw