Deck/Nautical Equipment/370266 HAIR HYGROMETER (POLYMETER), WITH MERCURY THERMOMETER

This instrument, known as a polymeter, measures temperature, humidity, vapour tension and dew point.  A mercury filled glass thermometer is attached.  The humidity element is a bundle of human hair.  The dial which indicates selective humidity is 80 mmø.  Temperature range –20 to 50oC in 1o div. and Humidity scale 0 to 100 % 0.18 kgs in weight.  263 mm in length.

这种仪器被称为测温仪，它测量温度、湿度、蒸气张力和露点。附上一个水银填充的玻璃温度计。湿度元件是一束人的头发。指示选择性湿度的刻度盘为80毫米。温度范围为-20到50摄氏度(10摄氏度)。湿度等级为0至100%0.18公斤。263毫米长。