Feature: 1. Rugged and durable, using double waterproof ring, good waterproof performance, can be used with confidence. 2. Accurate temperature measurement, floating swimming pool thermometer more accurate. 3. Control comfort, create a healthy pool temperature, and enjoy non‑stop pleasure. 4. Solar wireless thermometer can be charged by absorbing solar light, it is useful. 5. Suitable for swimming pools, water parks, hot springs and bathrooms. Specification: Item Type: Pool Thermometer Material: ABS Weight: Approx. 423g / 14.9oz Product Size: Approx. 22x9cm / 8.7x3.5in Display Battery Parameters: 4xAAA batteries (not included) Sensor Battery Parameters: 2xAAA batteries (not included) Host Temperature Measurement Range: 0~60℃ Sensor Temperature Measurement Range Transmitter: -40~60℃ Temperature Measurement Accuracy: ±1 (℃) Temperature Resolution: 0.1 (℃) Uses: Swimming pools, water parks, hot springs and bathrooms. Features: Swimming pool thermometer, solar floating, wireless digital, temperature measurement. Package List: 1 x Wireless Thermometer(Battery not Included)1 x Sensor(Battery not Included)1 x English Manual1 x Cover Opening Accessories Note: The power‑on sequence must follow the sequence shown in this section (first insert the battery in the remote control transmitter, and then insert the battery in the display console).