2CH Bluetooth Relay Module 12V

Description: BIG DIGITS LCD SCREEN: An easy-to-read extra-large LCD screen provides quick, at-a-glance measurements. MAX&MIN RECORD FUNCTION: Records Min and Max temperature provides the historical temperatures readings. With this feature, you can easily monitor the temperature change of your refrigerator and provide double protection to your food safety. STAND AND HOOK FOR HANGING: Equipped with foldable hook, which can be used by hanging in refrigerator and freezer rack or free standing only, it's very compact and convenient to keep Simple & Intelligent Operation: There are only 3 buttons Simple electronic thermometer. Just press the on or off button to switch the thermometer on/ off. Press °C/ °F button to select centigrade or fahrenheit. Once you reboot the thermometer, the max/ min temperature will be reset. WIDE RANGE & ACCURATE: The temperature range is from -20degree Celsius~50degree Celsius(-4℉~122℉) with high accuracy (±1°C/±2°F) allowing y, or to use this in the fridge, freezer or as a room thermometer for food safety or other applications. Specifications: Features: 1: Widely used,easy to use,stable performance. 2: Control distance: 10M (open environment). 3: Provide Bluetooth relay control APP. Description: The single-channel Bluetooth relay module includes 5V/10A or 12V/10A relay module and SPP-C Bluetooth serial port slave module, which can be used to control the switch of the relay through the mobile phone APP. The new model is more practical and has better performance. Stable. Function: Working voltage: DC 5V 12V Provide Bluetooth relay control APP Control distance: 10M (open environment) Size: 62*20mm(1 way), 40*64.5mm(2 way), 60*62.7mm(4 way) Onboard Bluetooth status indicator and relay indicator. Onboard high-performance MCU and SPP-C Bluetooth 2.1 slave module. Reserve the UART debugging interface, which can be used to modify the Bluetooth pairing password. Onboard 1 /2 /4 way 12V, 10A/250V AC 10A/30V DC relay, which can be activated continuously for 100,000 times, has diode effusion protection, and has a short response time.