**Zwbfu Portable Digital Dissolved Oxygen Meter - DO Pen Type Water Quality Tester for Aquariums, Pools, and Hydroponics | Accurate Dissolved Oxygen Analyzer**

Product Description

Want to know whether the dissolved value of water is up to the standard? If so, this pen-type dissolved meter is what you need. Designed and made with imported components and sensor with high sensitivity and accuracy. Dissolved Meter is widely applied in industry, electrical and agriculture, medicine, food industry, quality of drinking water, etc. NOTE: reagent Na2SO3 and CoCl2 are NOT included! Customers can buy the reagent by themselves. Specifications: Material: ABS Plastic Item Name: Pen Type Dissolved Meter Display: Large LCD Display with Switchable Backlight Range: Dissolved : 0.00 to 20.00 mg/L Temperature: 0℃ ～ 40℃ (32.0℉ ～ 104℉) Response Time: ＜ 30 seconds Resolution: Dissolved : 0.01 mg/L Temperature: 0.1℃(0.2℉) Accuracy: Dissolved : ±0.4 mg/L Temperature: ±1℃ Salinity Compensation: YES(ppt) Pressure Compensation: YES(mmHg/KPa) Automatic Temperature Compensation: 0℃ ～ 40℃ Working Temperature: 0℃ ～ 40℃ (32℉ ～ 104℉) Working Humidity: ≤85%RH Power: 1* 3.7V/1000mAh lithium battery Charging limited voltage: 4.2V Auto Power off: 5 Minutes without any operation Data Hold: YES Low Battery Indication: YES Temperature Unit: ℃/℉ Switchable Item Size: Approx. 140 * 43 * 43mm / 5.5 * 1.7 * 1.7in Item Weight: Approx. 132g / 4.6oz Package Size: Approx. 24.5 * 9 * 5.3cm / 9.6 * 3.5 * 2.1in Package Weight: Approx. 250g / 8.8oz Package List: 1 * Dissolved Meter 3 * Spare Probe Protective Cover 1 * Storage Bag 1 * User Manual 1* Electrolyte