Hygrothermograph

- Record temperature and humidity on 1 or 3 month rotation - Quartz-controlled strip chart drive co..

- -20 to 50°C, 3 months in 2 hours increments - Chart paper, 1 sheet - Use with Oakton Long C..

- Record temperature and humidity on 1 or 7 day rotation - Spring wound - no batteries required - ..

- -20 to 50°C, 1 month in 2 hours increments - Chart paper, 1 sheet - Use with Oakton Long Cy..

- 14 to 122°F, 1 day in 15 minute increments - Chart paper, 100 sheets - Use with Oakton 2 Speed H..

- Blue felt-tipped pen for Oakton Hygrothermograph, 6 pc/pk ..

- Record humidity on 7 day rotation - Quartz-controlled drive for accuracy - Remove..

- Quartz controlled drive gives consistant drum rotation speed even as batteries weaken - Record te..

- -10 to 50°C, 7 day in 2 hours increments - Chart paper, 100 sheets - Use with Oakton 2 Speed Hyg..

- 14 to 122°F, 7 day in 2 hours increments - Chart paper, 100 sheets - Use with Oakton 2 Speed Hyg..

- -10 to 50°C, 1 day in 15 minute increments - Chart paper, 100 sheets - Use with Oakton 2 Speed H..

- Red felt-tipped pen for Oakton Hygrothermograph, 6 pc/pk ..

- Record humidity on 7 day rotation - Quartz-controlled drive for accuracy - Built-..

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