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  • 15/01/2021

    good product

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  • 07/02/2022

    Thanks, I recivered the item ............................................................................................................

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  • 25/05/2022

    no tested yet

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  • 09/03/2022

    all meets

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  • 29/12/2021

    Excellent product i recommend

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  • 27/11/2021

    Works great as battery monitor and i can link it into Tasmota and Node Red for automation

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  • 28/02/2019

    Excellent, works exactly as described. When spring arrives, this unit will be installed to monitor the output from my solar array. The array is far away, so the RS-485 interface is perfect for this application. BONUS no guarantees, but mine arrived WITH a 300A FL-2 shunt AND a USB to RS-485 adapter. I didn't have any trouble getting it up and running and you won't either as long as you as long as you: 1) In addition to the A and B connections, the +5V and GND connections on the USB adapter need to be wired to the appropriate terminals on the PZEM-017's RS-485 interface, to provide the interface with ISOLATED power. This is probabily also true of the -003. Without this power, the -017's RS-485 has no power and will not respond. NOTE: This also implies that basic 2-wire USB adapters that don't break out the power supply can't be used, unless you provide an external source of 5V. 2) Plug a USB micro power supply into the port on the side to provide power to the measurement side of the circuit. There is windows software to work with this device. You'll need a baidu account to download it. Google how to get a baidu account if overseas to get one without a mainland china phone number. Chrome will be doing some translating, but it can be done. If all else fails hit me up and I will give you a link on google drive. Devices aren't much use without software. Yes, this device requires two sources of power to make it work. But that's GREAT. That means the measurement side is isolated from the communication side. Example pics. Didn't have any voltage on the measurement terminals. Don't be alarmed. Highly recommended. Love to Banggood.

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  • 12/06/2021

    This is a great product. Good casing and screw based connectors. With modification, I have managed to connect it to a nodemcu directly and is now integrated into home assistant. I recommend it.

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  • 28/10/2020

    good product

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  • 04/05/2020

    good

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