AZ8403 Portable Dissolved Oxygen Meter 0.0~199.9% Dissolved Oxygen Tester
Model: AZ8403. the oxygen concentration and temperature in water;. LCD size: 44(H)x26(W)mm. Machine size: 175 70 30 (L W H). Weight: 150g. Electrolytic fluid: Not included. Battery: 4PCS x AAA battery (Not included).