Accurate and stable, economical and convenient, easy to maintain, DO30 dissolved oxygen tester brings you more convenience and creates a new experience for dissolved oxygen applications.

Product Features

Ship type floating design, IP67 waterproof rating.

Easy to operate with 4 keys, comfortable to grip, and capable of measuring accurate values with one hand.

● Optional dissolved oxygen units: concentration ppm or saturation%.

● Automatic temperature compensation, automatic compensation after salinity/atmospheric pressure input.

● User replaceable electrode and membrane head kit (CS49303H1L)

● Can perform water quality measurement for throwing (automatic locking function)

Easy maintenance, no need for any tools to easily replace batteries and electrodes.

Backlit screen, multi line display, convenient for reading.

Self diagnostic display of electrode efficiency status

1 * 1.5 AAA battery with long lifespan

Automatically shut down within 5 minutes after no button action