I've installed the device per the instructions and recommendations on this site. But it just blinks 5.9 and doesn't switch from volts to amps.
1936720
The meter must have its own, separate power supply. I use a 12vdc transformer plugged into my inverter and it works great. I am able to monitor amps used by the inverter and other DC loads connected to my batteries as well as switch to see battery voltage. If you already have a separate power supply, you may have a bad meter.
1936721
I was unfortunate to purchase this heap junk and never got it to work correctly. Throw it away!
1936722
I ruined one of these by hooking up wires wrong to battery, it didn't work correctly so I was desperate. If you hook it up wrong once it is destroyed, I ordered another and thanks to a post that explained wiring , then it worked fine, hope this helps
343853
You need to install a electronic flasher. There isn't enough voltage to make a standard flasher work
1252048
Not sure about voltage or amps, but I never found a device that this would charge either.
1992432
Uh oh. Mine doesn't do that. I just here a slight surge when I plug it in. Good luck
1724775
I would plug the old one back in and try that. It will blink fast with the led but if its getting power then you know that you have a bad unit.
1550327
I have 3 in service and I just tested one on the bench by reversing the source and load. They DO NOT read current in the reverse direction.There is info on the Amazon Site as how to hook up the amp meter. The yellow wire goes to the load negative
1973319
I think you have a dud---DOA. Mine worked as a "plug and play." Sorry I can not be more helpful.
1556336
That one stumped me too. Nothing in the instructions, although they do mention 12 VDC for that wire somewhere in a diagram. The instructions were horrible, and the thing never powered on. I returned it and got a refund. My suggestion is you do the same.
1071959
Thought of something else. Make sure your power adapter is set to the correct polarity + -, mine is set at +
2267180
i installed one and hardly see the red light - if at all. I looked on line for examples for various examples when i wired mine... and its worked ever since.
182591
I'm not understanding what your question is. This device will blink yellow until fully charged.
792505
Bad connection?? I haven't had this happen. Been using the gauges about 2 years now. If voltage is right around the cutoff of 4.5V I suppose it could blink on/off as the voltage hovers around that point. Gauge puts a tiny load on system so volts would drop, then without the load V would increase again over 4.5V so it would light up again, and the cycle would repeat.
849956
The 9v circuits do not discharge, even though the manual says so. (chk my 2 star review)
531835
I suggest reviewing the manual and contacting the manufacturer. Are you actually drawing any load? You have to have a load connected to see any amp draw. Thanks.
1985279
Check your power supply/charger, it might not be supplying the 2 amps necessary for correct operation.
229718
should be pretty plug n' play. Maybe it's defective. Try a youtube tutorial. Good luck!
1028194
This might be a repeat answer. If you have pluged the unit into another outlet and the light still flashes I think you should return it.