DC Test screwdriver with voltmeter 5~120V Automotive Truck Tester CDB-03E

[Kiriakos GR]

Here we have under the spot light one voltmeter (screwdriver) 5~120V  Automotive Truck Tester.

One close friend of my were scammed due Aliexpress seller, he ordered a soldering station, he receive a pack of five of these trash instead. 

This toy it is not recommended for purchase, but lets see of what it can do.
Mechanical structure = cheap plastic toy.
Not even water resistance protection.

The only interesting part, this is the digital volt meter, that works at both DC polarity connections.
At 15V DC it causes a loading of 5~6 mA.

They are two LED diodes a Green and a RED one, its one glow as DC polarity indicator.
Coiled wire length,  50cm and extends to up 1 meter length.

End of this quick review   

Expectations / comments :
If this toy were correctly assembled, the wire it should be black.
RED led this lights up when sharp tip this is connected to positive.
The PCB cannot be reversed within this cover.
CDB-03E volt meter code.
Measuring accuracy unknown, even so there is no much detail with just three digits.

In a imaginary situation,  this thing it might be able to measure up to solar storage battery.
6V/12V/24V this is Automotive range.
48V/96V/120V this is for DIY and non standard electrical applications.

Wholesale price: 0.5 USD $ 
 

[overvolt]

One close friend of my were scammed due Aliexpress seller, he ordered a soldering station, he receive a pack of five of these trash instead. 

 

Due this scam he cannot even claim a refund