Record temperature and humidity on 1 or 7 day rotation
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. Includes
one 1-day gear and one 7-day gear, two felt-tipped pens (red and blue),
and one 7-day rotation chart.
Click below to download Acrobat (.pdf)
file of:
Two-Speed
Hygrothermograph product bulletin
Two-Speed
Hygrothermograph manual
| HumidityRange |
5 to 90% RH |
| HumidityAccuracy |
±3% from 10 to 90% RH;
±5% from 5 to 10% RH |
| HumidityChart range |
0 to 100% RH |
| HumidityChart graduations |
1% RH |
| TemperatureRange |
-10 to 50°C / 14 to 122°F |
| TemperatureAccuracy |
±1°C / ±1.8°F |
| TemperatureChart graduations |
1°C or 2 °F |
| Chart size |
6.6"H x 11.5"L (16.8 cm H x 29.2 cm L) |
| Chart rotation |
1 day (26 hr) or 7 day (172 hr) |
| Power |
spring wound |
| Dimensions |
13.3" x 11.5" x 5.1" (33.8 x 29.2
x 13 cm) |
| Shipping weight |
9 lbs (4 kg) |
|