If you've been looking for a desktop indoor outdoor , then your search is over! That's because our product has plate and hanging hook, easy for you to fix on different surface. Features -Material: ABS -Size: 7.00X6.50X1.50cm/2.75X2.55X0.59in Temperature measurement range: -50 degree centigrade-70 degree centigrade (-58 fahrenheit scale-158 fahrenheit scale) The default high temperature is 28 degree centigrade (82.4°F), and the default low temperature is 18 degree centigrade (64.4°F). The alarm sounds for 10 seconds Power supply: 1 x AAA battery (not included) - Adopt premium ABS material for durable use. - Minus 50 Celsius degree to 70 Celsius degree wide measurement range. - temperature alarm to alert you when temperature is out of desired range. - Smooth and round will not scratch your hand when in use. - back plate allow you to fix the on fridge. Package list: 1 x 1 x probe cable