TrakMax MPPT 12-Volt/24-Volt 40 Amp Sizeolar Charge Controller with Wireless Communication Kit

User adjustable settings, compatible with flooded lead acid, sealed lead acid (AGM), gel and lithium batteries and 12-Volt/24-Volt batteries, accepts up to 100VDC solar input, up to 98% efficient See photo gallery for a complete list of specifications, fast sweeping MPPT (Maximum Power Point Tracking) charge controller provides up to a 30% power increase in battery charging LCD screen and LED's provide all system information (amps, volts, solar voltage, temperature, load control, etc.), included battery temperature sensor helps extend battery life Optional remote meter can be mounted up to 20 ft. from controller and optional wireless communication adapter allows controller to sync with a smart phone or tablet, free App available for Android and Apple IOS Electronic protections: over voltage, reverse polarity, over current, excessive temperature and short circuit protected