Coleman AECM20020012 Electra Check LCD Digital Line Monitor AC Power Tester

The Electra Check Digital Line Monitor is a compact, professional-grade AC power testing and monitoring instrument designed for RVs, marine applications, and recreational vehicles. Built with advanced microelectronics, this device provides accurate real-time testing and monitoring of all AC power source types including shore power, generators, inverters, and uninterruptible power supplies.

Comprehensive Power Diagnostics:

• Tests for open ground, reverse polarity, and high/low voltage conditions
• RMS voltage and frequency meter for accurate readings on modified sine wave sources
• Multi-tone fault alarm with hands-free auto reset alerts you to power issues
• Complete wiring diagnostics to ensure safe electrical connections

Advanced LCD Display Features:

• Three display modes with LED backlight: Alternating Voltage & Frequency, Voltage Only, or Frequency Only
• Displays line voltage in RMS volts and line frequency in Hertz
• Easy-to-read display with "F" indicator for frequency readings
• One-button operation for simple mode switching

Simply plug the monitor directly into any standard 120V electrical receptacle for instant power quality analysis. Its rugged, compact construction makes it ideal for permanent installation in an RV electrical bay or use as a portable diagnostic tool. Essential equipment for ensuring safe, reliable AC power before connecting sensitive electronics and appliances.