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You’ve gone the green limit.

And yet you’re realistic. You’re aware that you need to protect these pricy air conditioners and heat pumps especially inverter-based systems. These higher end units are expensive and sensitive…to electrical surges.

Count on Allstar Electrical.

Easily installed in your garage or housed in a NEMA Rated 3R enclosure for outdoor installations, the Line Voltage Monitor warranties for surges up to 3-years and $10,000.

Line Voltage Monitor with Surge Protection

  • Protects against over and under voltage, rapid short cycling and high-power surges
  • Programmable set points to determine cutoff
  • Ideal for inverter systems, mini-splits, and other condensing units
  • Fault history feature records and retains the most recent faults in non-volatile memory 
  • Bank of five L-L Surge Arresters
  • Easy to view, backlit digital display
  • Built-in 40A contactor
  • Waterproof, NEMA–Rated 3R enclosure for outdoor use
  • Easy installation and setup
  • Limited lifetime product, up to a 3-year $10,000 connected equipment warranty.

Frequently Asked Questions

What is a line voltage monitor?

A line voltage monitor helps detect abnormal voltage conditions—such as sustained overvoltage, undervoltage, or voltage fluctuations—that can harm equipment. Some devices can disconnect power when voltage is out of range, then reconnect when it stabilizes.

When should I consider a line voltage monitor?

Voltage monitors are useful if you’ve experienced repeated equipment failures, have unstable utility power, or rely on sensitive electronics that need extra protection. They can be used for whole-building protection or for critical circuits.

How is a line voltage monitor different from a surge protector?

Surge protectors address short, high-voltage spikes; voltage monitors address sustained or out-of-range voltage conditions. In many cases, using both provides better overall protection.

Can you install surge protection for commercial equipment and panels?

Yes. We can recommend and install surge protection and monitoring solutions for panels, critical loads, and equipment based on your facility needs and the type of electrical service.