Bluelab ORP Meter

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

• Improve Root & Plant Health – Keep your nutrient solution clean for better oxygen uptake and nutrient absorption.
• Prevent Disease & Biofilm – Stop harmful bacteria, algae, and fungi before they spread.
• Safer on plants – Know how much chemicals to use – if any. Use the lowest amount of cleaning agent to protect both your plants and their environment.
• Extend Equipment Life – Minimize buildup and blockages in irrigation lines, pumps, and reservoirs.

Product Contents
1x Bluelab ORP Meter
1x Bluelab ORP Probe with storage cap
1x Bluelab KCL Storage Solution Sachet,18 ml / 0.6 fl.oz

Product Benefits
Measuring ORP helps prevent risks such as contamination, biofouling, equipment failure, and poor crop yields while ensuring compliance with water quality certification standards.

Reliable and easy to use, it’s an essential tool for maintaining optimal sanitation and water management. Backed by a 5-year warranty for added peace of mind.

Suitable for use with chlorine-based sanitisers (HOCl, OCl⁻, ClO₂). Not suitable for use with hydrogen peroxide.

Product Features

• Compact, handheld design for convenient use
• Bright, easy-to-read backlit display
• Replaceable Bluelab ORP Probe (with BNC connection)
• No ORP probe calibration is 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 pH probe for comprehensive monitoring (pH probe sold separately)
• Auto-off function
• The Bluelab ORP Meter doubles as a pH Meter when fitted with a Bluelab pH Probe (which is sold separately).

Technical Specifications
Power 2x AAA alkaline battery

Measurement Resolution 1 mV, 0.1 pH*
*Bluelab pH Probe sold separately.

Measurement Accuracy at 25°C / 77°F
± 5 mV, ±0.1 pH*

Operating Environment Solution: 0 – 50 °C / 32 – 122 °F
(Do not use or store outside this temperature range)

Measurement Range ± 1000 mV, 0.0-14.0 pH*

Warranty

• Comes with a 5-year limited warranty; 6-months for the Bluelab ORP Probe

Download the Bluelab ORP Meter User Manual - click here

Download the Bluelab ORP Meter Information Sheet - click here