Application: Data of electric energy meters, gas meters, water meters New chip, Taiwan Infrared Pair Tube, ON Semiconductorvoltage monitor, Industrial-grade meter reader, Near infrared, wavelength 940nm IEC standard industrial grade, the converter adopts UK chip, 15KV ESD RS485 transceiver circuit, Taiwan industrial-grade optical receiver/transmitter. Supported full protocol signal conversion, such as IEC62056-21, IEC1107, DLMS, MDBUS, etc. The transmission rate is: 300/600/1200/2400/4800/9600/19200bps. Magnet adsorption type, it is easy to fix on the optical interface device. Color: Blue Material: copper Package Contents: 1 x IR adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.