说明：  no intro
(Main features: 1. Mass production of commercial products all the information and source code. 2. 2272 to receive the software decoding. 3. 2262 to send the software code. 4. Launching and receiving distance of 150 meters, open environment. 5. Industry-standard alarm Center for the Public Security Bureau alarm interfaces and protocols. 6. For video surveillance camera and alarm linkage switch and remote control.)