DO9100:: Dissolved Oxygen portable meter

Reads: Dissolved Oxygen 
- Range : 0.0 - 40.0 mg/L
- Saturation: 0.0 - 300%
- Temperature: 0.1- 40.0ْ C , 32-104ْ F
- Solubility: 0.1 mg/L
- Cable length: 1.5 M
- Company: Cosiki carnival commerchant
- Made in: China.