Description The product uses industrial-grade chips, high-precision SHT20 temperature and humidity sensors, products with good reliability, high precision, and interchangeability. Uses RS485 hardware interface (with protection design), the protocol layer is compatible with standard industrial Modbus Rtu protocol. This product integrates the MODBUS protocol with common, users can choose communication protocol, common agreement with automatic upload function (Connect RS485 serial interface mode tool by automatically outputting temperature and humidity). Color: White Material: Plastic Size: 6.5 * 4.6 * 2.85 CM Package Contents: 1 * Temperature Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3 cm.