LCD Panel Meter Making Me Very Mad!

[Um...Me123]

OK So I bought this LCD panel meter to measure VDC (20Max) and I hooked a 9V battery to the power leads and it said 0.00.  Great so I hook it up again 5 minutes later it didn't work and has never worked again.  Bought another one finally several months later (has to be ordered) and I just hooked it up (said 0.00) and I hooked it up again (after going up the stairs) when I was about to put it into the panel to make sure I new the polarity and it didn't work!!!!!!! I can't get it to work at all now!!!!  What is going on!!!!  I'm really mad at this point because it's not cheap.

 

[ante1]

Hi,

Some of these meters has a working voltage of 5.0V, have you checked its datasheet? You might have killed it! 

 

[Um...Me123]

it says SUPPLY VOLTAGE: 9V (8-12V)DC

 

[gogo2520]

Hwllo Um...Me123

    WoW that sucks, were did you order the meters from?
    also do the meters have clips on them for the battery?
                        gogo

 

[ante1]

Sounds like cheap low grade quality!

 

[hotwaterwizard2]

Maybe it killed the battery from too much load.
Did you try a new battery?

 

[gtwms]

Most, but not all,  of the digital panel meters require an independent power source from the supply that you are measuring.