WRT21 key infrared remote control wrt-8521

Model: WRT_8521 Size: 41 * 90.5 * 9.5Mm key categories: conductive plastic emission / Coding: NEC or specify the encoding IRED: infrared wavelengths: 950nm Power: DC 3V operating voltage: 2.2-3.4V Working current: ≥10mA quiescent current: ≥ 1uA transmitting power: 90 mW / sr typ Working distance: 8-20 meters (receiver sensitivity ≥0.5mW / m2) frequency: 455 kHz or use of the battery according to the chip: 3V button type lithium batteries - Temperature range: Work Temperature: -45 ~ +55 or specific specifications Storage temperature: -25 to +55 or specific specifications Features: compact Ling Long, for all kinds of home appliances Scope: stereo, fans, readers, water heaters, foot bath and other small household appliances and various kinds of medical devices.