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Zefon Bio-Pump®

Munufacturer:	Zefon International
Lowest Price:	$599.00
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Product Reviews

Excellent	2006-08-07
Reviewed By: []
I have had great experiences with this device. It is lightweight, almost completely silent, and the battery lasts an incredibly long time (I performed almost 60 samples during one inspection and the battery was still plugging away). Its ability to time both individual and sequential samples is a tremendous benefit. I can walk around and make other observations while it takes a sample and not have to worry about looking at my watch. Calibration in the field is a snap, although I have heard that it may be difficult to hook it up to a more reliable calibration machine.

Good portable pump	2006-07-25
Reviewed By: []
I really like using this portable pump. It has a thread on the bottom so I can mount it on a tripod to do sampling at variable heights. Because it has a rechargeable battery, you can do outdoor sampling away from electical outlets. Another nice feature is programming a shutoff time. You can purchase multiple pumps and run them at the same time and they'll shut off without you being there. Goodbye stop watch! The one issue is that these pumps are hard to calibrate to a primary standard. They come with a rotameter but I'm not sure how you would connect it to a Dry-Cal for example. I did hear this issue was being addressed but I'm not sure of the outcome. Overall a great purchase for anyone doing air-o-cell sampling.

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