No meter warm-up or polarization required so you can take dissolved oxygen measurements right away.

This meter ensures high accuracy with independent 100% and zero adjustment calibrations, and offset adjustment capabilities. It stores and recalls 100 dissolved oxygen readings with corresponding temperature - great for field readings. This meter even displays electrode diagnostics to help determine when you need to service or replace the probe. The front keypad is water resistant.

• Low maintenance dissolved oxygen probe comes with 10 or 25 foot length cable
• Key in salinity and pressure manually; meter automatically calculates offset values
• Dual display shows mg/L (ppm) or % saturation plus temperature
• Hold function; Auto-off; Ready indicator
• Includes a dissolved oxygen/temperature probe, electrolyte solution, and batteries