Mini-Drum Hygrothermograph

This compact hygrothermograph is our most economical model. It uses humidity sensing coil for accurate, consistent readings. Drive is quartz-controlled for accuracy; operates for six months on one AA battery. Features corrosion-resistant acrylic housing and built-in LCD clock near the base for easy viewing at a glance.

Includes 1 sheet of 7-day, °C chart paper and and AA battery. Order additional chart paper and pens separately.