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Inkbird Wireless Thermometer Humidity and Temperature Monitor, Freezer Thermometer Bluetooth Temperature Sensor Smart, with APP for Android and iOS ( Temperature and Humidity Sensor )
🌡Built-in temperature & humidity sensor, stores max 30,000 points of data on the device. Temperature sensor and humidity sensor 🌡Graph, accuracy calibrating, high/low-temperature alarm notification, data export, and the sampling interval set are supported via app 🌡Up to obstacle) remote control via Bluetooth. Please note that is compatible with the gateway update version. 🌡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 / hyg

Price is $
Price: $19.99