Demista Instruments - Model OT-21 - Compost Monitor
Composting is the biological process in which microbes consume plant and vegetable materials and convert it into useful organic material and other byproducts. There are two types of microbes that do this and are commonly referred to as aerobic and anaerobic microbes. The aerobic microbes thrive in oxygen environments while anaerobic microbes thrive in oxygen deficient environments. Aerobic composting converts organic material into stable humus, carbon dioxide and water, Anaerobic composting converts organic material but produces methane, hydrogen sulfide, ammonia, etc. which results in unpleasant odors and unpleasant attention from your neighbors.
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Features & Specifications
believe that our simple and easy to use monitors represent the best combination of price and features available today.
Use the Model OT-21 Compost monitor to keep aerobic microbes active and decrease composting time, reduce odors, kill weed seeds, and reduce pathogens.
Not only will you save on the overall composting time, you will save time in taking measurements. You use only one instrument to take both oxygen and temperature measurements.
The Model O-21 Oxygen Monitor is identical to the OT-21 except that it measures oxygen only.
You get results on a digital display and you get the results FAST!
- Oxygen range of 0-99%.
- Temperature range of 0-199 deg. F(-18 to 100 deg C)
- Fast response time
- Long life oxygen cell(approx. 2 years)
- 1/2'(12.7cm)high digital LCD display
- Low battery indicator
- Single 9 volt alkaline battery operation
- Rugged 3/8' diameter stainless steel probe
- Solid state temperature sensor at probe end
- Removeable filter probe tip
- Easy oxygen calibration
- Steel and aluminum monitor construction
- Laminated vinyl finish (not paint)
- Gold plated switch and probe contacts
- Weather resistant construction
- Monitor LxWxH= 6 1/2x 4 1/8x 1 1/2(165x105x38mm)
- Centigrade OR Fahrenheit temperature display
- Probe lengths available: 3, 4, 5, or 6Ft (76, 102, 127 or 152 cm)
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