CTG-10 Clip Tuner : Has its issues

I've been using this for some time now, and i have two of them. I use it on both nylon acoustic, and my electric guitars. It does it's job.

Main issue with this little tool is that the battery has loose contact with the power pins. I have to put some thick paper in the battery compartment to make it work properly. Also you have to attach it to the instrument really carefully (trial and error) otherwise it fails to detect the sound.

Otherwise, it is cheap and really easy to use. Has auto switch off feature which helps me a lot (I always forget to manually switch off). You can use it as a chromatic tuner or also guides user to do standard tuning.

I'm happy with the device except the battery contact issue.