1. Versatile function, imported TI company components, using low-power design with undervoltage display,

automatic shutdown ect power management function.

2. This instrument measure the concentration of dissolved oxygen meter, saturation, the electrode current,

temperature.

3. Using microprocessor technology, wide-screen LCD. Operating prompts, easy to use.

4. With automatic temperature compensation.

5. With power-off protection function

6. Meter class IP65, waterproof, dustproof, suitable for field work

1. Range: 0.00 ~ 20.00ppm;

2. Temperature 0 ~ 50 °C

3. Resolution: 0.1% , 0.01ppm 0.1 °C

4. Accuracy: ± 1.5% F.S; temperature 0.3 °C

5. Salt content: 0.0 ~ 50.0 ppt; resolution 0.1ppt

6. Data storage: 99 document (s)

7. Display: 4-digit, displaying % or ppm and temperature values

8. Relative humidity :0-80% ;Water temperature, 0 ~ 50 °C

9. Dimension: 175x70x33mm

10. Weight: 500 g

11. Power supply: 4 X AAA batteries

DOS-218 Portable Dissolved Oxygen Meter second table a table, ppm-level sewage dissolved oxygen

electrode (polarographic oxygen film) 1(double-shielded cable), carrying case, a battery, manual, one

bottle of standard liquid.