Inkbird Wireless Bluetooth Temperature and Humidity Smart Sensor Freezer Thermometer Hygrometer IBS-TH2 Monitor Data Logger Recorder with APP for Android and iOS

Graph, accuracy calibrating, high/low-temperature alarm notification, data export, and the sampling interval set are supported via app Up to 98ft(without obstacle) remote control via Bluetooth. Waterproof IPX4 makes this thermometer/hygrometer ideal for a freezer or refrigerator. Built-in magnet, this sensor could be attached to the metal without glue or nails Smart thermometer / hygrometer supports connected to multiple phones and reading multiple sensors with one cellphon