Monitor Oxidation-Reduction Potential (ORP) to track solution quality, disinfecting power, and sanitation throughout the growing cycle.

• Compact, handheld design for convenient use
• Bright, easy-to-read backlit display
• Replaceable Bluelab ORP Probe (with BNC connection)
• No ORP probe calibration required
• KCl-filled probe cap to keep the probe hydrated
• 2 metre / 6.6ft cable for measuring in hard-to-reach locations
• Dual compatibility allows optional use of a Bluelab pH probe for comprehensive monitoring (pH probe sold separately)
• Auto-off function

Replacement Bluelab ORP Probe available separately.