Range - maybe up to ten meters. Near infrared region — 700 nm to 1400 nm — IR sensors, fiber optic 2. operating temperature range from -25 C to 85C. Some spotlights have a PIR (passive infrared sensor). 20-60 degree and range of approx. It's range is only a few centimeters. IR LED Transmitter IR LEDemits light, in the range of Infrared frequency. few centimeters to several feets, it depends upon the type of IR transmitter and the manufacturer. working voltage of 3 .3 V to 5 V. working current of 1.5 mA. IR LEDs have light emitting angle of approx. (This technology is used in alarm systems, door openers etc.) Mid infrared region — 1… Infrared technology addresses a wide variety of wireless applications. In the electromagnetic spectrum, the infrared portion is divided into three regions: near infrared region, mid infrared region and far infrared region.The wavelengths of these regions and their applications are shown below. The main areas are sensing and remote controls. 1. The IR sensor module consists mainly of the IR Transmitter and Receiver, Opamp, Variable Resistor (Trimmer pot), output LED in brief. They detect your body heat and turn on as you approach. IR light is invisible to us as its wavelength (700nm – 1mm) is much higher than the visible light range. Some transmitters have … Specification of IR Sensor Module: It has a receiving range of 2 ~ 30 cm. As some of the other posters have commented, range depends on power.