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I purchased 5 of these units and found the price to be very low. I am using them to monitor batteries used for my solar systems and they work great. I found that the amp meters would only read either the charge or the draw depending on how they are connected. I mounted a DPDT micro switch next to them and by reversing the leads to the shunt I could switch between Charge and Draw giving me all the data I required. The supply voltage is also the metered voltage so make sure the unit is powered by the voltage you wish to monitor. I have 5 sets of batteries and had to run power from each set separately. For the Price these units are very high quality and reliable. I would recommend them without reserve.
Verified purchase: Yes | Condition: New
I put this on my moto 36 volt electric bicycle and I love it. I use it for an indicator for when I need to recharge my bike. And the numbers light up and are very visible even when riding after dark. I used a 9 volt ebl 6f22 600 mah lithium battery for powering up the digital numbers.
Verified purchase: Yes | Condition: New
This is an outstanding value for anyone wanting to monitor DC amperage and voltage. I am using this on the 12V system for my Ham Radio Station and it is working like a charm. I have a 12V 100 amp amplifier for my station and I now know the status of my battery just by a glance. Thank you.
Verified purchase: Yes | Condition: New
It is easy to hook-up, once you find the correct wire diagram. Love it will order more for sure.
Verified purchase: Yes | Condition: New
I liked this very much, the Shunt might need some work, to get it right AMPs and Volts
Verified purchase: Yes | Condition: New