features: *within the visual range, the reliable transmission distance can reach 500m *offering a transparent data interface, it is suitable for any standard or non-standard user protocols; *auto filtration of false data produced in the air, and able to transmit long data frames; *carrier frequency: 430~434 mhz, or customization for 450m or others; *effective speed: 1200/4800/9600/19200bps, which is set before ex-factory; *gfsk *low power consumption and sleep function: 10mw,receiving current<25ma, transmitting current<40ma, sleep current: <20ua *good reliability for long-time use, low failure rate, and suitable for both indoor and outdoor use; * size: 47mm*26mm*10mm (housing and antenna base excluded) dear manager: our company is an industry leader in the design, development and production of high quality electronic systems and components.we focus mainly on manufacturing dvr video capture card and cctv camera. and nowadays, we have developed two new communication products: wireless data module and telephone recording box. they are really new products and we are sure will attract your attention a lot. also your oem solution is extraordinary welcome. we will try our best to satisfy your oem design. high quality, sincere service and low price is our value and our promises to our customer. hope we can cooperate! best regards! contact person:jancy e-mail: sales06(at)hkhuawei.net msn:huawei0602(at)hotmail.com skype:jancy20061 yahoo:jancy_20062000 tel: 86-755-83756060 fax: 86-755-83755169