The main function of intelligent auto transfer controller is to switch between two power supplys systems (utility system and solar system/wind power system) at home, and it can automatically switch between the two power supplys systems according to the parameters set by the customer (the principle is that when the battery voltage in the solar system is lower than the set value, it switches to the utility power supplys, and then when the battery voltage in the solar system returns to the set value, it switches to the solar supply),or customers can use the APP to switch to increase the proportion of solar system in the household power supplys to achieve energy-saving and power saving. It can also be used in RV camping and yachting, switching power supplys between 2 batteries. Features: Work with APPRemote control can be realized by connecting the phone through BT, which is compatible with MOES and TUYA APP, and helps you realize flexible transfer and use between the public power and battery. The APP provides three functional values of grid power, automatic mode and inverter power, which truly defines the concept of energy-saving. (All functions of the controller are not interfered by APP.) Surge ProtectingTimely access to the current voltage of the grid, battery and inverter, especially the current, power and power consumption of the load, performing as an intelligent power system with overcurrent protecting. Beneficial to Solar or Wind Energy SystemOn cloudy or windless days, when your battery gets low, it will automatically switch to grid power for protecting your battery, especially if the battery voltage is below the cut-off point, and when the battery voltage is above the recovery point, it will automatically switch back to battery power, working like an opposite direction UPS, with an updated manual switch function for your convenience. Auto Distinguish with Adjustable Set-points and AC TestDirect current 12/24/48V, AC 100-120V 60HZ/220-240V 50HZ automatically distinguish, user can define cut-off and recovery voltage. Recovery voltage should be higher than Cut-off voltage. Suitable for various types of batteries, such as sealed batteries, gelbatteries, leadacid batteries, lithium batteries, etc. The battery low voltage transfer and battery recovery set points can be freely adjusted according to the battery type. Nice AC test function, when the inverter AC output is abnormal, the device will automatically switch to public power. Bigger Power & Large LCD DisplayUpdated rated power: 8KW(110V) or 16KW(220V) and 80A. Quick transfer time: Inverter transfer to public power ≤10ms, public power transfer to inverter ≤16ms. Designed with large LCD display for showing battery real-time voltage, working status of public power, inverter and battery. Specifications: Rated Power: 8kw (Utility Power 100-120V), 16kw (Utility Power 220-240V) Input Voltage: Auto Selection: AC 100-120V or AC 220-240V Output Voltage: Auto Selection: AC 100-120V or AC 220-240V Transfer Time: Inverter transfer time to utility power Utility power transfer time to inverter LCD Display: Battery Voltage, Power Source: Utility Power or Battery-Inverter. System Voltage: Auto Selection: 12 V or 24V or 48V Battery Low Voltage Transfer Set-Points: Default: 10.5V/21V/42V, adjustable Battery Recovery Set-Points: Default: 12.5V/25V/50V, adjustable Application: Off grid solar system; Wind generator; Hydro generator Item Size: 190 * 170 * 72.5mm/ 7.5 * 6.7 * 2.9in Item Weight: 1.32kg/ 2.9lb Package Size: 225 * 220 * 170mm/ 8.9 * 8.7 * 6.7in Package Weight: 1.63kg/ 3.6lb Note: 1. The controller needs to connect the battery, powered by the battery and get battery power data. 2. Remote control needs to be used with Tuya BT gateways(Not included in delivery). Packing List: 1 * Dual Power Automatic Transfer Switch 1 * User's Manual