Description:Brand Name: King PowerItem Name: Battery GuardItem NO.: BG-8 SColor : GreenLOW_V AL low voltage warning range: 2.5V-3.9V, could turn offHIG_V AL high voltage warning range: 4.21-4.27V, could turn offDIF_V AL singlechip voltage different warning range: 0.02V-0.35V, could turn offTIMER AL warning range: 1-20mins, timer, could turn offWeight : 8gFeatures:Super light, only 8gCould display 8S lipo battery voltage with high precisionCould also test chip 1S voltage.Could be directly linked to the 450 helicopter battery.Super bright warning LED light red or blue, random shipments.DIS DIR displayerSERACH AL, search airplane warning, could turn on/offSILENCE, button sound, could turn on/offPackage Included:1 x King Power BG-8S Lipo Battery Guard vladjohnny Store