Hanging pattern wet and dry bulb thermometer for determination of relative humidity. Consist of mercury filled german glass white back thermometers. Fitted on metal scale. Quality reinforced polypropylene plastic case with lid and bulb protector. Detachable plastic water cistern. Boxed with hygrometric tables, spare wicks and mounting screws.
Thermometer registers high and low temperature reading with special metal indices from last setting point. Scale printed on imported high sheets. Mounted on beautiful plastic frame on seasoned wooden base. Boxed with specially designed magnet.