The moisture meter can quickly measure the moisture content of the grain. 1. 3000W inverter, car inverter with 2 USB ports and power outlet, impact power up to 3000W, inverter has stable performance and good working efficiency. 2. 3. Multifunctional protection, built-in fuses, safe charging design and cooling fan prevent overheating of the car power converter, saving energy and energy. It has protection against overvoltage, overload, overcurrent, short circuit, undervoltage, overheating, short circuit. 4. Lightweight design and top quality, ideal for holidays, camping and business trips. It can be connected to almost any vehicle with a power output of 12 V, providing the ability to charge anywhere. 5. Made of high quality ABS material, it is durable, durable, portable, sophisticated production ensures the work efficiency of goods, it can also provide more convenience. Specification: Item Type: Car Inverter Material: ABS Color: as shown in the picture Input voltage: DC 10,5V-15V (when the battery voltage is lower than 10,5V, the inverter is protected against low voltage when the battery voltage is higher than 15V, the high voltage protection of the inverter) Optional output voltage: AC 110 V, AC 220 V Output frequency: 50Hz for the 220V/60Hz model for the 110V model. Peak Power: 3000W Rated Power: 300 W Output waveform: Modified sine wave. criteria: (1) Keep dry, do not allow the inverter to come into contact with water or other liquids, keep the inverter away from moisture or water. (2) Cool environment, keep temperature from 0 degrees Celsius to 40 degrees Celsius. Do not place the inverter near ventilation openings or other devices. Try not to let the inverter be directly illuminated by the sun. List of packages: 1 x Car Inverter 2 x Battery Clamp 1 x Car Cigarette Lighter Plug 1 x Manual Note: