» View our LDO product demonstration

• No calibration for one year
• Reduced cleaning frequency and simple maintenance
• 99% accuracy
• No electrolyte solutions to poison or replenish
• No membranes
• Three year probe warranty
• One year sensor warranty

If you've heard conflicting reports about the "right" LDO technology, be sure to view the Hach LDO: Real-World FAQ below.

(note: this unit must be connected to an sc100 or sc1000 Universal Controller to form a complete system)