voltage

The unit is in use currently but I'm looking to sell it to upgrade to a bench multimeter and want to avoid the clutter. The measurements are reliable but I'm giving it a 4/5 on item condition because the selector knob sometimes need an extra nudge to go into the correct mode. I can provide...

The voltage stabilizer attached to my AC sometimes work, manytimes not. I took it to a repair man and he checked it, he said it was okay. At home, it gives same output for input, it does nit increase or decrease it. But sometimes it works for 5 minutes. I dont know what is the problem. I've got...