100 Amp DC Watt Meter

This isn’t just a watt meter–it’s the All-In-One Meter!

A watt meter, a power meter, a volt meter, an amp-hour meter and ammeter. Everything all in one unit!

This is the perfect troubleshooting tool. Analyze contacts and identify problems in your wiring connections. This all-in-one meter is indispensable for any DIY home power project.

Product Features

  • Installs in seconds!
  • Handles 0 to 60 volts. Works on 12, 24, 36, and 48 volt battery bank systems.
  • Extremely low power consumption of 6 mA. More efficient than any LED meter.
  • Digital LCD screen gives clear crisp number readings.
  • Handles up to 100 amps intermittently and 50 amps continuous duty.

  • Towhee says:

    Very Good Meter I use this meter between my 12v battery pack and my loads. It allows me to know the battery bank voltage as well as the amp hours and watts used. I placed a flippable fuse between the meter and the battery bank to allow for easy clearing of the meter values.

  • RC says:

    Amp watt meter I purchased this product and installed it. It works well. The only thing is you can’t see the numbers without the light shined into it. It has not backlight that would be helpfull. Otherwise It works well and I would recommend it.

  • richandfamous says:

    Does what it claims… Some reviewers say that they have used these to monitor small solar electric systems. After hooking this up to mine and letting some of the smoke out of the watt meter, I cant imagine how small some of those people’s systems are. The description says 100 amps but that is for very brief periods of time. It is actually only rated at 50 constant amps. My testing with it went over 100 amps. In this thing’s defense, it smoked (though just a little) but it still works fine and it taught me a valuable lesson in the difference between AC amps and DC amps. Maybe a bit costly for a lesson but I read A LOT about solar power and still didn’t understand that my 10 amps at 110 volts is 100 amps at 12 volts even after thinking I understood ohms law. I really didn’t see how I was supposed to go from 2/0 gauge battery wires through this thing’s 14 gauge wires but without understanding that factor of 10, I thought I should be within the limits. Plus I had NO knowledge of how many amps were being pulled UNTIL I hooked this device up so it gave me that, too. I looked at this and even took it apart because I REALLY doubted it but then figured why not and hooked it up (being very careful in case I was correct in my doubts). It worked fine within its rated amps, as well.So while this is a good piece of electronics that does exactly what it says, for even a small solar system I would save up the $200 bucks that a Victron BMV or other monitoring device costs. It does way more and uses an external shunt that will prevent having to run the higher DC amps through the small 14 gauge wires on this.