German chemistry electronic thermometer

Description

This is a mercury thermometer with a plug on the end to run with a device from a lab.
This in fact came from a lab that had not been used in many years – just not sure which piece of equipment it was intended to work with.
It says “JUMO- D.B.P.” on it and “made in West Germany”.
I am sure the actual thermometer works, but I have no idea if the electrical leads are OK.
It is about a foot long.
I will pack this super securely- no one has had any issues with fragile stuff I have sold arriving broken.
I only charge for shipping – no handling.
Feel free to ask questions.