This is a brand new ProMariner TruePower Plus True Sine Wave Inverter 2000ps
...In the box, never been used. I bought it by mistake on Amazon and its too late now to return it. 
 I would have liked to use it but it is too large for my small boat.


The TruePower Plus True Sine Wave Inverter has all of the convenient features of ProMariner's MS series, but provides a pure sine 115 VAC output ideal for powering  high fidelity audio visual systems, in addition to appliances with hysteresis and variable motor speed controls like washing machines and refrigeration etc. in addition to a variety of household and recreational devices, including laptops, coffee makers, and electric grills.

Features:

  • 2000W Pure Sine Wave Inverter
  • Designed to convert 12V DC battery power to 115V AC
  • Will automatically pass through AC inlet power when present
  • Innovative dual color digital LCD message center
  • Dual color gauges for AC power output and battery DC input
  • USB power port
  • GFCI convenience outlets
  • DC cable covers
  • TruePower Plus Display Functions:
    • DC to AC output gauge indicates percentage of AC power being used versus output rating
      • The scale turns red when output demand exceeds output rating
    • Input power indicates if power is coming from DC (batteries) or AC inlet power
    • DC input level gauge indicates the battery DC voltage level
      • The scale turns red when battery voltage drops below 11.0V
    • System Status
      • Dual color LCD with full system normal and fault condition messaging (No codes)
    • Check illuminates when a fault condition is present with LCD message
  • Integrated AC cable strain reliefs and front screw connection terminal blocks allow for quick and easy installation without the added need for ring terminals for AC power connections
  • TruePower Plus Remote (included)
    • On / Off control
    • Input power source LED indicators
    • Check fault LED indicator
    • Remote mounting screws and 9 foot cable included

Specifications:

  • Wattage: 2000W
  • Surge Rating: 4000W
  • Sine Wave: Pure
  • Efficiency (optimum): >90%
  • AC Output: 115V AC (60Hz)
  • Internal AC Transfer Switch: 30 Amps
  • AC Crossover Time: <30 ms
  • DC Input: 11-15V DC
  • USB Output:
    • Voltage: 5 VDC +/-5%
    • Current: 2.1 ADC
  • Inverter Off DC Amp Draw: 4 mA
  • Dimensions: 4.5" x 10.6" x 11.5"
The ProMariner TruePower™ Plus 2000PS Power Inverter is a robust and reliable solution for converting 12V DC battery power into 115V AC power, delivering up to 2000 watts of continuous power. Utilizing pure sine wave technology, it efficiently powers a variety of household and recreational devices such as laptops, coffee makers, and electric grills. Key features include an internal 30A AC transfer switch that automatically switches to shore power when available, dual-color digital LCD message center, USB power port, GFCI convenience outlets, and a 2X surge capability to handle startup loads. The inverter also comes with a remote control for easy operation and monitoring, shock-resistant construction for durability, and a two-year warranty for peace of mind.

Power Output: Delivers 2000 watts of continuous power with a 2X surge capability to handle startup loads.

Power Conversion: Converts 12V DC battery power to 115V AC power using Modified Sine Wave technology.

Automatic Transfer Switch: Built-in 30A AC transfer switch automatically switches to shore power when available, preserving battery life.

Display and Monitoring: Features an innovative dual-color digital LCD message center and dual-color gauges for AC power output and DC battery input.

Connectivity: Equipped with a USB power port and GFCI convenience outlets for safe and versatile connections.

Remote Control: Includes an on/off remote with LED indicators for easy operation and monitoring.

Durability: Designed with shock-resistant construction to withstand harsh environments.