Main centres: | 1-3 business days |
Regional areas: | 3-4 business days |
Remote areas: | 3-5 business days |
Description
Measure Humidity - Mason's Hygrometer - Red Liquid. One thermometer bulb iskept constantly wet by a siphon reservoir while the other gives a drytemperature reading. Humidity is obtained by comparing the two readings on theenclosed chart. The red liquid masons hygrometer uses a safe and easy to readred liquid in place of the usual mercury. Dual scales of -10/50¿¿C and10/120¿¿F.
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