36 Darton Thermohygrograph

The Darton Chart No.36 is a Thermohygrograph chart designed for recording temperature and humidity over a 7-day period. Measuring 302mm x 92mm and printed in red, it features a range of 0-100% relative humidity and 20-120°F. 

Each pack contains 100 charts, ideal for use with traditional Thermohygrograph that include a clip for chart placement. For models without a clip, chart tape can be used to securely hold the charts in position.