We are providing to our customers a wide range of wet & dry bulb hygrometer. Wet & Dry Bulb Hygrometer are filled with mercury & fitted in a beautiful plastic casing, sine scale on its back, with black, This is highly durable and compatible in nature. Customers can be easily availed from the market at affordable prices. figuring combine, range: 5 - 50 deg. C & 20 - 120 deg. F with conversion table etc.