VEVOR Dual Battery Isolator Kit, 12V 140Amp, Manual and Auto Modes VSR Voltage Sensitive Relay with LCD Screen, Smart Battery Isolator for ATV UTV RV Camper Off-Road Vehicle Caravan Truck Boat YachtManual & Automatic Dual OperationUpgraded LED DisplayHigh and Low Voltage ProtectionFit for Dual Battery SystemsSilicone Sealed InteriorStress-Free InstallationCut-In Charging Voltage: ≥12.3V,Maximum Charging Current: 140A (within 5 minutes),Applicable Battery Voltage System: 12V Storage Battery,Voltage Sensitive Relay Dimensions (L x W x H): 2.7 x 2.7 x 2.2 in/ 68 x 68 x 56 mm,Item Model Number: VSR002,Cut-Out Charge Voltage: ≥12.6V,Continuous Charging Current ≥100A:,Product Weight (with all accessories): 3.3 lb/1.5 kg,Main Material: ABS