Masons Hygrometer C&F Wet & Dry Bulb Weather Air Humidity Moisture - 13/222/3\n\nSimple form of psychrometer to provide an easy way to measure the amount of\nwater vapour in the atmosphere, on a percentage scale known as Relative\nHumidity (%RH). The difference between the \u201Cwet\u201D and \u201Cdry\u201D bulb temperature\nenables the %RH to be determined through the use of the table and\ncalculate.\n\n**All Products Include Two Year Warranty**\n\nWhat's in the Box?\n\n--1x Wet & Dry Bulb Hydrometer\n\n-- 1x RH% table\n\nMason's Wet and Dry Bulb Hygrometer Specification\n\n--Ranges: -5 to 50\u00B0C/F\n\n--Accuracy: +/- 1\u00B0C/F\n\n--Divisions: 1\u00B0C/F\n\n--Case Material: Polypropylene\n\n--Scale Material: Polystyrene\n\n--Reservoir: Polyethylene\n\n--Glass Tube: Kerosene Filled\n\n--Weight: 110g\n\n--Dimensions: 310 x 77 x 32mm\n\nFrequently Asked Questions\n\nQ. My product is broken? Help?\n\nA. All products come with a 2-year warranty. Get in touch with us throu!