| Division of KWJ ENGINEERING INC. |
For Air |
For Water |
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| Model P03 | Model D03 |
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66 X 35 X 14 mm (2.4" X 1.4" X .65") 28 grams(<1 oz.) Up to 3 months battery life. Standard watch battery. Proprietary nanocell micropower sensor technology. |
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| US patent 5744697 and other patents |