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 3. GQ EMF EF Meter RF Spectrum Power Analyzer
 USB cable spec
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rogerh

USA
1 Posts

Posted - 03/26/2022 :  15:20:38  Show Profile  Reply with Quote
Hello,

Just got an emf-390, but do not have a compatible usb connector for the unit. Can someone please let me know the precise spec of the usb needed, so I can start looking for a suitable adapter cable.

Fortunately the battery is at 75%, so I can play for a while....

thanks -- Roger
Reply #1

EmfDev

2131 Posts

Posted - 03/28/2022 :  09:51:56  Show Profile  Reply with Quote
Hi rogerh, you can use any 5V usb adapter or any computer usb port.
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Reply #2

Nonly

1 Posts

Posted - 11/06/2023 :  15:03:28  Show Profile  Reply with Quote
1. I have an adapter from an older tablet with the specifications: Output 5V, 1.5A Is it good to charge the battery in GQ-390?
2. If it's possible to specify the full type of battery in GQ-390 (mAh etc.) Thanks.
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Reply #3

EmfDev

2131 Posts

Posted - 11/06/2023 :  16:28:53  Show Profile  Reply with Quote
@Nonly,

1. Yes.
2. Battery is Li-ion 18650 2500mAh 3.6/3.7V
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