The moisture meter can quickly measure the moisture content of the grain. 1. Using industrial grade main control system, good performance and durability. 2. Large screen LCD display, adjustable charging and discharging parameters, with power off function 3. Full 3-step charging management to better meet your needs. 4. Built-in protection against overcurrent, short circuit, circuit opening, reverse connection, all are self-recovery type, do not damage the controller. 5. Dual USB output, maximum current up to 2A, dual circuit against MOS backflow, very low heat generation. . SOLAR PANEL VOLTAGE REGULATOR PWM 20A . SOLAR PANEL VOLTAGE REGULATOR PWM 20A . SOLAR PANEL VOLTAGE REGULATOR PWM 20A Specification: Item Type: Solar Charging Controller Material: ABS Color: as shown in the picture System Voltage: 12 V/24 V (Automatic Identification) Maximum photovoltaic voltage: System 12 V Increase charging voltage: B01 Sealed type: 14,4 V, B02 Colloidal type: 14,2 V, B03 Open type: 14,6 V. Variable charging voltage: 13,7 V (default value, adjustable range: 12,7-15 V) Discharge cut-off voltage: 10,7 V (default value, adjustable range: 9-11,3 V). Discharge Restore Voltage: 12,6V (Default Value, Adjustable Range: 11,5-13V). Standby current: Output USB: Maximum 5 V / 2 A Operating temperature: -35-60 ℃ rated current: 20A Size: approx. 133x70mm/5.2x2.8 in . SOLAR PANEL VOLTAGE REGULATOR PWM 20A . SOLAR PANEL VOLTAGE REGULATOR PWM 20A . SOLAR PANEL VOLTAGE REGULATOR PWM 20A List of packages: 1 x Solar Charging Controller 1 x Manual . SOLAR PANEL VOLTAGE REGULATOR PWM 20A . SOLAR PANEL VOLTAGE REGULATOR PWM 20A . SOLAR PANEL VOLTAGE REGULATOR PWM 20A