Hello
This is my first post , 4 years ago I bought a GDM-461 in an auction here in Montreal, I've been using the meter since and it works perfectly , until I forgot the power on and drained the 9v battery. When I replaced the battery, something went wrong, smell and hot battery. So I searched the 'net' and found lots of info on the UNI-T which is the same as my meter. So with the info I found on this forum I was able to repair my meter. And of course I made a Video !! one in French and one in English....
Jean-Pierre