Dissolved oxygen meter, handheld, DO 40

This portable oxygen meter, with maintenance friendly galvanic sensor, is an entry level device suitable for everyday use. Concentrations in mg/L (ppm) and saturation in percentage can be read directly without using tables.
 
Ergonomic, dust- and waterproof ABS housing (IP 65/67)
3-line display with battery status indicator and backlight, protected by an unbreakable pane, overhead display at the push of a button
Easy calibration at the push of a button
HOLD function, min./max. values, stability recognition, automatic adjustment for environmental air
Long battery life (>3000 h)
 
Ideal for use in fresh water and salt water aquariums, aquaculture/fish breeding, and for the monitoring of wells and bodies of water. The use of a protective cap is recommended for use in bodies of water in order to protect the membrane.