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   Hach Company
   PO Box 389
   Loveland, CO 80539
   
   800-227-4224
   970-669-3050


Product Guide: HQd Water Meters

LDO® Meters & Probes

Luminescent Dissolved Oxygen: Simplify Your Maintenance
The breakthrough Hach Luminescent Dissolved Oxygen (LDO) technology, now the standard for measuring Dissolved Oxygen, eliminates the numerous reliability and maintenance concerns inherent in older DO membrane instruments.
• No membranes!
• Infrequent calibrations
• No electrolyte to replace or anode to polish
• 1-year sensor life
EPA recommended method
IntelliCAL™ LDO Probes
Rugged LDO Probes
Rugged LDO Probes    5 m cable | 10 m cable | 15 m cable | 30 m cable
Designed for harsh environments. Features a super-tough, stainless steel body and polymer shroud that protects the sensor from impact. Reinforced, steel-sheathed cables are durable, yet manageable. Waterproof for 24 hours at a depth of 30 meters.
Refillable LDO Probes
Standard LDO Probes   1 m cable | 3 m cable
Also measures temperature. Waterproof for up to 24 hours at a depth of three meters.

LDO Method Approved in Numerous States


ApprovedNo data needed
Approved with Performance Data*Est. total time 2-8 Lab hrs/ 30-90 days
Tier 1 Submission
* Performance Data: Typically includes air saturated water calibration with water saturated air verification. Subject to change by selected state or region.
EPA Compliance
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