This product has been retired.

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Warning: Damage caused by freezing isn't covered by warranty; we recommend 2-day shipping to reduce risk.

This product is an accessory for the following products:

Horiba W-20XD Series Water Quality Monitoring System
Compact monitoring solution offering high pressure tolerance and long-term continuous measurement
RETIRED

The Horiba ORP calibration solution is available in 89mV and 258mV concentrations.