1、HIGH EFFICIENCY: Tracking efficiency ≥99.5%, maximum conversion efficiency up to 98%, 12V/24V automatic working system voltage identification and automatic saving function. 2、CIRCUIT PROTECTION: The controller has built in reverse polarity, overcharge, overdischarge, overload, short circuit and reverse current protection to avoid battery damage. 3、HIGH PERFORMANCE: With 4 stage battery charging (Batch, Boost, Float and Equalization) and temperature compensation to extend battery life and improve system performance. 4、APPLICABLE BATTERY: Supports sealed, gel, LiFePO₄ (4s/12V; 8s/24V), Li(NiCoMn)O2 (3s/12V; 6s/24V) battery, with temperature compensation function (only for acid battery), reduced overheating power function. 5、RS485 INTERFACE: The remote control meter has RS485 bus interface, longer communication distance, stable and reliable operation and less interference. 1 x Solar Controller1 x Solar Controller User Manual1 x Solar Controller Accessories1 x Temperature Probe1 x Host Computer Connection Cable1 x Remote Meter1 x Remote Meter User Manual1 x Remote Meter Connection Cable8 x Screws4 x Expansion Screw4 x Rubber Pads Item Type: Solar Controller KitRated Charging Current: 30ASystem Nominal Voltage: 12V/24VDC automatic identificationBattery Voltage Range: 8V~32VMaximum PV Open Circuit Voltage: 100VDCMaximum PV Input Power: 390W/12V , 780W/24VOther Functions: Black light LCD display, common negative electrode, support lithium battery, more safety protectionProtective Function: PV overcurrent; PV short circuit; PV reverse connection; night reverse charge; battery reverse connection; battery overvoltage; battery overdischarge; battery overheating, controller overheating; lithium battery low temperature; load short circuit;MT-50 Features: 1. Automatically identify the controller and display relevant parameter data 2. The large screen information LCD displays all operating data and system working status 3. Simple and convenient operation 4. Real time alarm of fault information 5. The communication distance based on RS485 is longer 6. Programmable parameters 7. Energy statistics display functionMultiple Load Control Modes: Manual control, light on and off, light on + timer, time controlBattery Type Selection: Gel, sealed, submerged and user (programmable)Remote Temperature Sensor (TS-R): Cable Length: Approx. 3 meter / 9.84ftConnector: 0.0125ft, 2PTest Temperature: -131℉~257℉If the controller is not connected to TS-R, the battery charge and discharge temperature is set to 25℃ by default without temperature compensationRS485-150U Cable: Used to monitor each controller on the network and update firmware using the Solar Station PC software.