Made of corrosion- resistant acrylic for indoor or sheltered outdoor use. Spring winding keeps chart running for eight days. Even when the motor begins to run down, a steady chart speed is maintained.
Included: one 1-day gear and one 7-day gear, two felt-tipped pens (red and blue), and one 7-day rotation chart.
Specification
Humidity Range & Accuracy
5 to 90% RH; ±3% RH from 10 to 90°C, ±5% RH beyond
Airflow
Chart Paper
