Professional DO9100 Dissolved Oxygen Meter Backlight Digital DO Tester Water Quality Detector for Seawater Freshwater Fish Tank

Battery Included : No High-concerned chemical : None Is Smart Device : No Model Number : DO9100 With Backlight Or Not : Yes Origin : Mainland China Dissolved Oxygen Tester : DO Detector Portable Dissolved Oxygen Meter : Oxygen concentration Dector Oxygen concentration (mg/L) : 0.0-40. 0 mg/L Dissolved oxygen saturation (%) : 0.0-300. 0% Temperature : 0-40°C; 32-104°F Oxygen concentration Resolution : 0.1 mg/L Dissolved oxygen saturation Resolution : 0.1% Temperature Resolution : 0, 1°C; 0.1°F Response time : ≤45s (fast response at 20℃) Temperature Compensation : ATC (0-50℃) Shut down : automatically shut down for about 15 minutes Battery : not included