GH Zeal - Model P2505 -Zeal Masons Pattern Hygrometer

Masons Pattern Hygrometer P2505 (wet and dry bulb hygrometer). Housed in a yellow plastic case with lid and bulb protection. Available in Red Spirit. Supplied with Hygrometric tables, spare wick and instructions. Sold singles. Product code:  P2505 – Red Spirit -5/+50°C & +20/+120°F.