Function 1:oxygen meter ce Function 2:finger oxygen meter Description 1:Do meter Description 2:Dissolved oxygen meter Description 3:JBP-70A pen meter Feature 1:Pen-type Tds Tester Feature 2:Test Suite Usage A:Portable PH Tester Usage B:Digital Water Tds Meter Usage C:Aquarium Water Show More...

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Hi, I would like to know the price for QIWEI cheap dissolved oxygen meter of laboratory analyzer for aquaculture water testing kit DO meter. I am interested in buying 5 Sets. Please provide us with a quotation. Thank you. Show More...

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