Bluelab pH Probe Inline - 3/4in NPT - For Guardian Monitor Connect Inline

Inline Replacement pH Probe for Continuous Solution Monitoring

The Bluelab pH Probe Inline is a replaceable double-junction pH probe designed for the Bluelab Guardian Monitor Connect Inline. With a 3/4-inch NPT thread and compatibility with a 1-inch adapter, it installs directly into inline monitoring systems for continuous, real-time pH measurement in recirculating nutrient lines. The 3-meter cable provides flexibility for reaching meters in hard-to-access equipment installations.

Key Features & Benefits

• Double-junction probe design - Reduces reference contamination for extended probe longevity in continuous-use inline applications.
• 3/4in NPT thread - Installs directly into inline monitor bodies; use with 1-inch adapter for larger line fittings.
• 3-meter cable - Provides reach for monitoring setups where the probe and meter are separated by equipment or piping.
• Fully waterproof - Built for permanent immersion in inline nutrient solution flow.
• Fast sensor response - Delivers quick, accurate pH readings for reliable real-time monitoring in automated systems.
• Effective at 0.2 EC and above - Accurate across the full range of hydroponic nutrient solution concentrations.

Who Should Use This

Greenhouse and hydroponic operators running Bluelab Guardian Monitor Connect Inline systems who need to replace a worn pH probe without replacing the full inline monitor. Essential for maintaining continuous, accurate pH data in automated nutrient delivery systems.

Compatibility

Designed specifically for the Bluelab Guardian Monitor Connect Inline. 3/4in NPT thread; use with 1-inch adapter for 1-inch line fittings. Effective in solutions of 0.2 EC and above.

Frequently Asked Questions

Which monitor is this probe designed for?

This probe is designed for the Bluelab Guardian Monitor Connect Inline.

What thread size is the probe fitting?

The probe has a 3/4in NPT thread and can be used with a 1-inch adapter for larger inline fittings.

How long is the cable?

The probe cable is 3 meters long, providing reach for equipment installations where the probe and monitor are separated.

Why replace the probe rather than the full monitor?

Replacing only the probe is more cost-effective than replacing the full inline monitor and restores full measurement accuracy without disrupting the installed system.