Reflector Photocell Long Range 12-24V DC/AC Automatic Gate Infrared Photocell Sensor With Waterproof Cover. Reflector Photocell is a photoelectric sensor that loads the transmitter and the receiver into the same device, fits a reflector in front of it, and completes the photoelectric control effect using the reflection principle.It can be used to detect changes in light and color on the ground, or to detect close objects. Commonly used application scenarios are: lifting door, revolving door, sliding door, wall security protection, window and balcony security, warehouse security, parking lot and other outdoor security places. 1). Operating Voltage: AC9V-24V (AC Frequency: 45-60HZ,=15mA);DC12V-24V(=38mA) 2). Working current: Less than 38mA 12VDC (Relay on) Less than 20mA 12VDC(Relay off) 3). Induction distance: Less than 10m 4). Sensitivity: Fixed 5). Reaction time: about 30mS 6). Ambient light intensity: Max.5000lux 7). Emission tube parameters: wavelength: 740nm; luminous type: visible red light 8). Relay:Load parameter: AC 3A/125VAC; DC 3A/30VDC;Coil parameters: DC9VDC (=20mA) 9). LED indicator light: Green LED lamp: 1). Power switch; 2). Light flash indicates weak signal Red LED lamp: working status signal (on / off: working signal valid / invalid) 10). Operating temperature: -20℃- + 70℃ 11). Storage temperature: -30℃-+ 80℃ Color: As Shown Material: plastic Package Contents: 1 set x Sensor+reflector 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.