Good product but over priced – A light in Pennsylvania – Harrison, NJ USA
This is a good product. It does measure the count of micro particles in the air quite accurately. Great for you to test the filter of air conditioning systems, but cannot test allergen (like pollen) because it doesn’t do any analysis – it cannot figure out what the particles are. Therefore, it is only for dust control.
Two big drawbacks: 1. very noisy in continous mode because it uses a fan to blow in air. However, it can also run in intermittent mode, which is less annoying. Go with this mode.
2. overpriced. When it first came out in 2007, it priced at 149 dollar, which is relatively reasonable. But now it 199 dollar, way over its base, in particular, given the current state of economy. If you don’t need this in a rush, wait for a while, either the price will go down, or some made-in-China version will come out with less than 80 dollar. Just check what happened to the oximeter. The following made-in-China version brought the oximter price from 200+ dollars to 70- dollar Finger Pulse Oximeter Octive Tech 300C with Easy-Carry Soft Case
Conclusion: if in a rush, go get it; if not in a rush, just wait for a while.
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