anyone know how to change battery on pH pen tester?

I have the Milwaukee pH digital meter that I got off ebay. Anyone even changed the battery on a pen style tester before? Thanks

i have a pen similar though it is a Trans make.the top of the pen .(The black bit) prise it up with a little screw driver and it should slide out and you will see the little watch batteries in a tray like thing.well that is the way with mine.the postman.

Yep ,
Pop the back of the pen off , it'll slide out and it will take 3 -357's .
Did you get the pen from someone in Arizona by chance ? Mine had dead batteries in 5 mos. They must have been sitting for a long time I bet .
Peace
Crispi :jointsmile: