Measure Humidity - Mason's Hygrometer - Red Liquid One thermometer bulb is kept constantly wet by a siphon reservoir while the other gives a dry temperature reading. Humidity is obtained by comparing the two readings on the enclosed chart. The red liquid m
Measure Humidity – Mason’s Hygrometer – Red Liquid One thermometer bulb is kept constantly wet by a siphon reservoir while the other gives a dry temperature reading. Humidity is obtained by comparing the two readings on the enclosed chart. The red liquid masons hygrometer uses a safe and easy to read red liquid in place of the usual mercury. Dual scales of -10/50C and 10/120F.- Dimensions: 304 x 73 x 32mm
– Weight: 108g
$25
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