Digital Pool Spa Thermometer Swimming Pools Tester Bluetooth/Wireless/WiFi app

| Multiple Uses: Idea for Swimming Pool, Spas, Hot Tub, Fish Pond, Aquarium, Hot Spring. 1xIBS-M2 (WiFi Gateway). 1xIBS-P01B (Bluetooth Version). IBS-P01B Bluetooth Version Download the APP. Open the APP add the sensor and pair with your smart phone.

eBay