Infrared head size: diameter 32.5mm, height 27mm (dimensions are for reference only, the actual error is 2mm) IEC standard industrial level, the converter adopts British chip, RS485 transceiver circuit with 15KV ESD protection, Taiwan Yiguang industrial grade optical receiver/transmitter Supports signal conversion for various protocols such as IEC62056-21, IEC1107, DLMS, MODBUS, etc., with transmission rates of 300/600/1200/2400/4800/9600/19200 bps Magnetic adsorption type, easy to fix on the optical interface device Infrared and IR are isolated by optocouplers and isolated power modules to prevent interference and stabilize communication Isolated USB to near-infrared IR converter can be networked Applicable to foreign electric energy meters, gas meters, water meters for data reading and acquisition Industrial Grade Meter Reader Near infrared, wavelength 940nm USB to NIR suitable for monitoring system data, smart city data, grid power monitoring data, energy consumption monitoring system data, photovoltaic system monitoring data, intelligent monitoring data, intelligent robot data, smart security systems Designed for various applications with optical communication interfaces, including data acquisition, cloud platform data acquisition, and electric energy meter calibration and re-inspection Color: blue Material: plastic + metal Cable length: approximately 1.5 meters Package Contents: 1 x USB to Near Infrared Cable Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowed error is +/- 1-3 cm