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My model is the DPP10, but it came with a DPM10 manual. Does DPP mean "pure" and DPM mean "modified"? I don't know. According to my oscilloscope trace, the output is a very finely ramped triangular or square wave that closely approximates a sine wave with 1v of ripple. I don't think the 1% ripple makes any difference to inductive devices. The unit is surprisingly light weight, tho with some constant dual-fan noise. Well constructed DC connection cables & hardware. Nice blue illuminated information display on the front. Battery Low alarm cuts in at 10v and the unit has to be turned off/on to reset the a alarm sound.
Verified purchase: Yes | Condition: New
I have one strong issue -- even though it has a low voltage alarm , this inverter will destroy your batteries if it is not manually disconnected. My Batteries were pulled down to 6v (200Ah@12v) well below the 9v destructive voltage for AGM!!!
Verified purchase: Yes | Condition: New
So far so good. Installed to run our residential 22 cubic foot refrigerator in fifth wheel. Tested with two 12v 85ah marine batteries. Ran for 10hrs and battery was still only down to 12,1 volts. Passed the test easily. Estimated it could have run fig for 24hrs. Only need it when driving, when 5th wheel is disconnected from shore power. Only con so far is the connecting cables could be about twice as long as the ones supplied.
Verified purchase: Yes | Condition: New
I bought this to use in my car for HAM Radio transceivers, Spectrum Analyzers (shown in the pictures), and maybe a decent-size flat screen for tailgate parties. My HAM gear consumes around 700 watts, the spectrum analyzer in the pictures uses 400 watts, and the flat screen would be a joke of course. But in all three cases, I wanted a true or "pure" sine wave inverter. The 1000 watts provided by this one (2000 watts surge) seemed perfect. And so far it has been. It produces a true sine wave instead of a modified wave, and my equipment behaves as though it's plugged into a wall outlet. If you have good eyes you will notice that the little $100 scope-meter is reporting the frequency as 59.65 Hz, but then it's a $100 scope-meter, LOL. This inverter runs 60-Hz equipment perfectly, so that's all that matters. If this burns out prematurely or goes up in flames, I'll update this review.Read full review
Verified purchase: Yes | Condition: New
I bought this inverter to replace a fairly old 1500/3000w unit. This one's a little unusual in that it's tall and narrow instead of the more common design of being short and wide. The display is good, but lacks an indicator of how much load is being drawn (in watts) and doesn't indicate how many amps are being drawn from the battery either. (in amps) Three outlets is nice, a lot of these units only have two. Comes with a little remote control panel and short ethernet cord. (you can use any regular ethernet cord if you would like to install the remote panel farther from the inverter) The panel does give a rough indication of battery charge but not much else, though it works fine for turning the inverter on/off remotely. Fuses are changeabe and can be accessed from the outside. (they're on the back, under little covers, which is a nice touch) It includesh some short battery jumpers which are using fine stranded wire so they're surprisingly flexible. It also comes with a second set of red/black twist knobs, probably to secure the battery-end of the 12v cables. This unit was bought to replace the 1500 inverter because the "modified sin wave" it produced wasn't compatible with some equipment here. I'm happy to say the computer monitor and UPS are both completely satisfied with the clean sin wave this inverter produces - the monitor behaves properly and the UPS switches back out of protection mode without complaint. The next time we have a power outage here I should be able to move the UPS over to this inverter and continue to work like that until power is restored. In addition to a more informative display, I would like to have had a way to adjust at what voltage the inverter shuts down - this one cuts off at 10.4v input, and I would like to adjust it up to 10.8v to not so deeply discharge my battery. (this isn't usually adjustable on most inverters though) Price is good too, though it's been a LONG time since I bought that old 1500. (for $350!) I'm satisfied with this purchase and would recommend it to others. Read full review
Verified purchase: Yes | Condition: New