Martindale Microwave Leakage Detector
Comes in its bespoke padded carry box(box has one catch not working but its been on shelf)
Accurate unlike the Chinese types, self test function.
Instructions of use included, water holder and protected thermometer. In full working order High end testing equipment not the usual toys from China, Made in the UK
Unbroken Celtek seal
Will post if required cost when new over two hundred pounds.