Descriptions:1. Lightweight and portable, easy to carry.2. Use ergonomics. It is easy and fast for user to use with simple key operation mode and comfortable hand feeling.3. Apply in water sources, aquarium, hydroponics, spas, swimming pools and other water systems.<;b>Specifications<;/b>:Model:AR8210Battery Type:4 x LR44 button type batteries （not include）Dissolved Oxygen measuring range:0.00-20.00mg/LAccuracy: ±0.4mg/LRespond time: <;30sTemperature measuring range:0-40°Solvement temperature compensation range:0-40°Data hold:yesBacklight:yesCalibration:yesSize:140 x 40 x 40mmWeight:132gPackage List:1 * Dissolved Oxygen Meter (Battery is not included)1 * Storage Bag1 * User Manual【Sincerely Guarantee】If you have any problem with our product,please contact us,we are very will to solve all your problem and must give you a satisfied solution!
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