Description: MiaoMiaoCe Thermometer Hygrometer Accurate Indoor Temperature Humidity Sensor with Clock LCD BT Temp Humidity Monitor with Data Storage In App for Home Office Greenhouse Indoor Garden Features: High-precision digital sensor, accurately monitor temperature and humidity changes Equipped with a built-in high-precision RTC clock chip and backup battery, power-on display time With APP, you can customize 18 groups of alarms, long press the alarm touch button above the smart clock to turn on/off the alarm, tap any touch button to end the alarm reminder E-ink electronic ink screen, ensuring ultra-low power consumption and also has a nearly 180 high-definition display effect Temperature and humidity curve display, historical records storedin the APP can be checked at any time Through the BT gateway, the smart clock can be linked with other smart devices to make your home more comfortable Specification: Model: MHO-C303 Material: ABS + PMMA Battery Type: 2*AAA batteries Wireless connection: BT4.0 Nominal voltage: 3V Temperature measurement range: 0-60 Humidity measuring range: 0% -99% RH Time Display: Digital Shape: Rectangular Product weight: 0.0670 kg Package weight: 0.1000 kg Product size (L x W x H): 11.07*5.07*1.72 cm/4.36*2*0.68 inches Package size (L x W x H): 12.00*6.00*3.00 cm Note: There is a little of difference according to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Package List: 1*MiaoMiaoCeSmartTemperature Clock 2*AAA batteries