Bluetooth Hygrometer Thermometer IBS-TH2

Other model details Temp & RH Sensor TH2 IBS-TH2 Smart Temperature sensor Main Features Built-in temperature sensor only, stores max 30,000 points of data on the device. Measure temperature -40℉~140℉.Powered by 2 AAA batteries(NOT included) Graph, accuracy calibrating, high/low-temperature alarm notification, data export, and the sampling interval set are supported via the IOS and Android apps.  APP supports multi-language, °C /°F mode. Up to 98ft(without obstacle) remote control via Bluetooth.  Waterproof IPX4 makes this thermometer ideal for a freezer or refrigerator. Built-in magnet, this sensor could be attached to the metal without glue or nails. One phone can connect more than one IBS-TH2 at the same time. And one IBS-TH2 can be connected to more than one phone at the same time. Multiple Use