An effective way the battery a Use the battery.'Time: Press "Mode" again for seconds, choose 24/12 hours, press "Mode" and Clear "ADJ button to set time. > Year: again on "mode", the "ADJ" - button for years. Date: press "MODE again and put on month and date.'Alarm: Press "Mode", then "ADJ", choose alarm mode, press "Mode" for seconds, you can make for alarm input means to accumulate. Waterproof detector Use detector for seconds, such as Windows, out temperature is out correctly. Installation Support: Place the thermometer on the table, desk or any other place Suspension: then you can mount on the wall and you will find something to repair - such as a pin, avoid overloading and dropping. Specification Material: ABS (Acrylonitrile Butadiene Styrene) Temperature Measuring Range: 122 - 158 °F Humidity measuring range: 5% RH Moisture level range: 10% - 99% RH Power supply: 1x AAA battery (included) Package Content: 1 x Digital Thermometer Tips: If the clock is on time.You should clean or replace a new battery and click to reset button
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