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.