Masons wet and dry bulb hygrometer for measuring relative humidity. Supplied mounted in a yellow plastic case complete with wick, reservoir and relative humidity conversion tables. These traditional hygrometers are in regular use around the world, and provide a quick and convenient means of measuring temperature and humidity.
M**N
Excellent Original!
I have owned a Zeal for the past twenty years.(They are used in textile mills to measure relative-humidity).I was not sure it it will have the same quality now, but I was surprised!Good quality original!The extra wicks and the printed table/chart were also included.I am going to order another one!
A**R
Good working
good working but product is not high quality
