digital volt meter install

smiley2186
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hey i bought the digital volt meter, how do i wire + and -, where should i wire it to turn off and on? i want to put it near my head unit. so i can see if volts drops or not. can i wires the positive to the power on the head unit and ground the - to the frame?

this one.
100_0792.jpg


 
Put a switch in. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
i was thinking about that but i don't think it draws that much power to be a problem. some one correct me if im wrong though.

 
but can i connect it to the head unit? i was thinking of installing the power wire with the power wire on the head unit and ground it. would it work? it says it has a turn on and off signal build with it.

 
but can i connect it to the head unit? i was thinking of installing the power wire with the power wire on the head unit and ground it. would it work? it says it has a turn on and off signal build with it.
i don't know but i have that exact one( from H&K right?) and it does not turn off when i turn my system or car off.

 
I got the same meter from Kent and I wired it straight to back battery.. Stays on all the time.. Doesn't hurt anything.. Uses very minimal voltage
alright that's good to know. i was worried about it draining my batt but figured its probably drawing barely anything.

 
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