I do not know much about this item. I went to take the sticker off the front of it & found there's a hole where a power switch should be. I don't know if toggle switch on front is original. Ive just taken the top of it & the min/max dial has no wires on it. So am selling as untested and as is. Spares or repair only. Check all pictures which reflect the condition. No returns Thanks
eBay