Large Volume Laboratory Biological Air Sampler Main characters: 1. Sampling hole has many small holes to reduce puffball superposition and reduce error of animalcule count. 2. Programmable, sampling quantity can be set from 0.01 to 2.0 steres. 3. LCD displays sampling quantity, sampling time and other parameters. 4. Save sampling quantity, sampling time and other parameters in pages and save 256 pages at most. 5. Particular sculpting, convenient to use. 6. Simple to exchange substrate utensil, just only take down sampling hole to exchange substrate utensil. (Standard diameter is 90*15.)
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