1Microcomputer control technology, high system integration and strong stability. 2The FG-218 is an electronic safety sensor for taking miniature photos for automatic door control and similarly for other applications such as garage doors, door operators, etc. 3Suitable for safety or primary control equipment requiring a narrow detection range. 4The universal design of the international optical lens, with a focus and controllable angle, it is easy to install on the radio. 5The special code for sending and receiving uses microcomputer technology, which has a wide range of transmission and reception and strong anti-interference ability. 6Receive filtering, decoding, and amplification systems from Germany, effective solutions to avoid natural light interference. 7The transmitter adopts high-power pulse low-emission technology, which has long transmission distance, low power consumption and long camera life. 8A single group or two groups of split lens connected to the transceiver input, connection and good protection available with a light beam, can also be a double controlled light. 9Light block trigger, the output can be selected flexibly normally open or close the contact signal. 10High voltage input design, 12-36v AC-DC power input is valid.