Item Type: Solar Thermometer_x000D_ Material: ABS_x000D_ Temperature Range: -20~+70_x000D_ Battery Parameters: 1 x LR44 Button Battery, 160mAh (Built in)_x000D_ Weight: Approx. 108g/3.8oz 1Widely Applicable: Digital solar thermometer, which can be widely used to measure water temperature in swimming pools, bathtubs, etc, with accurate measurement. 2Range Measurement: This solar digital thermometer has the highest and lowest temperature function, it can measure the temperature from ?20+70. 3Solar Powered: Thermometer has a built in 160mAh battery and is powered by solar energy, just put it in the water and wait for 1?2 minutes to display the reading. 4Easy To Read: The pool water temperature meter is displayed in and with a clear digital display, which is very easy to read and very convenient. 5Compact: The digital thermometer is small, lightweight, and comes with a drawstring for easy access, making it suitable for use in all swimming pools.1 xSolar Thermometer 1 xRope