The infrared receiving module adopts 1838 infrared receiving head Light resistance, strong electromagnetic interference, built-in infrared dedicated IC, can work under 500 lux light intensity Widely used in: stereo, TV, video machine, disc machine, set-top boxes, digital photo frame, car stereo, remote control toys, satellite receivers, hard disk player, air conditioner, heater, electric fan, lighting and other home appliances Dimension: 6.4 x 7.4 x 5.1mm Receiving angle: 90 ° Working voltage: 2.7 ~ 5.5V Frequency: 37.9KHz Receiving range: 18m