Cleartop technology  is scientific and technological enterprise Specialize in wireless communication , wireless data  transceiver module .The main products are as follows, wireless data  transceiver module, logistics information machine, wireless LED , GSM message data  transceiver module , GPRS data transmission ,  controller by pager, wireless person who call out the stops automatically, remote control light controller ,etc. omni-directional to use product while being wireless. Our company has a batch of professional , steady , high-quality research and development teams , follow the trend of the wireless field closely, offer the products of high quality and at a reasonable price and wireless solution to the masses of users

433M wireless Transceiver LED display:2 km transmission distance, suitable for short-range wireless network,Widely uses in to bus station,school,hospital,section,hotal,and so on.