GL-SYSTEM-515RECEIVER Systemfreq:30Khz Batteries:6C-celloffshelfbatteries/rechargeablebattery Batterieslife:18/10hourscontinuousoperation Display:IndustrialratedLCDgraphicdisplay Telemetry:5channelsoflicensefreeradio.rangeupto600m Temperature:Under85centigrades Dimensions:30cmx13cmx67cm Weight:2KG Waterproof:IP65GL-SYSTEM-515DISPLAY Power:6C-celloffshelfbatteriesor12-32VDCofaHDD Batterieslife:18hourscontinuousoperationwith6C-cellbatteries Display:IndustrialratedLCDgraphicdisplay Telemetry:5channelsoflicensefreeradiowithrangeupto600m Temperature:Under85centigrades Dimensions:14cmx13cmx13cm Weight:1KG Waterproof:IP65GL-SYSTEM-515TRANSMITTER Transmittingfreq:30Khz Batteries:2C-celloffshelfbatteries. Batterieslife:12hourscontinuousoperation Range:Upto21metersdepth Roll:12o clocksegment Pitch:0.1%resolution Temperature:Under85centigrades Weight:0.68KG Dimensions:Standard Waterproof:IP67 Ifyouhaveanyquestionsaboutourcompanyorproducts,pleasefeelfreetocontactus.Wearelookingforwardtoyourinquiries.Tel:+86-13486486727Fax:+86-574-87010370Email:zhangxiaohua1030@gmail.comWebsite:http://www.goldenland-inc.com