Skip to main content

Send Us a Message

Search

Monitors & Dosing

Plants feed around the clock, and pH and EC drift around the clock with them. A reservoir that tested perfectly at 8 a.m. can sit half a point off by evening, well after anyone checked. Bluelab monitors and dosers close that gap. The Guardian Monitor Wi-Fi tracks pH, conductivity, and temperature continuously and sends an alarm to your phone the moment a value leaves range. The Bluelab Pro Controller goes further, dosing pH adjuster and multi-part nutrients automatically to pull the reservoir back to target. Growers stop reacting to problems and start preventing them.

Free Shipping on Most Items
We Price Match
Easy Returns

Buyer's Guide

Monitors & Dosing: Complete Guide

Automate the Reservoir, Protect the Crop

Manual dosing relies on memory, timing, and luck. Automated monitoring and dosing replace all three with constant measurement and precise correction. Every reservoir stays inside its target window whether the grower is in the room, across town, or asleep. That consistency drives uniform growth, predictable feeding, and fewer surprises at harvest.

Continuous Data, Precise Correction

Bluelab pairs laboratory-grade sensing with fail-safe dosing logic, so automation adds control instead of adding risk.

  • Monitoring Built for Line Pressure: The Guardian Inline mounts its probes directly in pressurized dosing lines rated to 100 psi. Growers see exactly what the plants receive, not just what sits in the tank.
  • Accurate Multi-Part Ratios: The PeriPod M4 calibrates each of its four pumps to the viscosity of its own nutrient. Thick bloom boosters and thin base nutrients land in the reservoir at the ratio the feed chart specifies.
  • Safeguards Against Overdosing: Safety lockouts halt dosing when readings behave abnormally, and dosing resumes automatically after a power loss. Growers who add the External Lockout and Alarm Box can wire a float switch to stop the Pro Controller when a tank runs low.

Scaling Automation to Your Operation

The right system depends on how many nutrient parts you run, how many irrigation zones you manage, and how much control you want to hand off.

  • Single Reservoir, pH Control First: The Bluelab pH Controller uses a built-in peristaltic pump to hold pH within 0.1. It is the simplest first step into automation for home hydro and small commercial rooms.
  • Full Commercial Fertigation: The IntelliDose Controller Kit doses up to a 9-part blend and holds separate day and night EC targets. It also drives up to four irrigation pumps across NFT, DWC, drip, and media systems, and pairs with the IntelliLink gateway for remote control through the Edenic app.
  • Keep the Dosers Supplied: Every pH controller consumes adjuster. Stock a concentrated acid such as Drip Hydro pH Down so the system never runs dry mid-cycle.

Prefer automation driven by substrate moisture and runoff sensors? Browse Irrigation Control.

Setting Up Automation That Runs Clean

A dosing system performs only as well as its installation and upkeep. These practices keep Bluelab automation accurate for the long haul.

  • Give Nutrients Room to Mix: Dose into reservoirs large enough to buffer corrections, such as collapsible hydroponic reservoirs, and add circulation so each dose disperses before the next reading.
  • Calibrate Probes on a Schedule: Automated dosing trusts the probe completely. Calibrate pH monthly and verify EC against a standard solution, so the controller doses to real values rather than drifted ones.
  • Start Conservative: Begin with small dose volumes and longer wait times between doses, then tighten settings once the reservoir's response is clear. This approach prevents overshooting in smaller tanks.

Continuous monitoring, calibrated probes, and a well-sized reservoir give any hydroponic system a hands-free, repeatable feeding routine. For a closer look at one of the most automation-friendly methods, read Ebb and Flow Hydroponics: How Flood-and-Drain Systems Work.

Frequently Asked Questions

What is the difference between the Guardian Monitor and a Bluelab controller?
The Guardian Monitor measures and alerts. It tracks pH, EC, and temperature continuously and sounds alarms, but it doesn't adjust anything. Controllers such as the pH Controller, Pro Controller, and IntelliDose measure and then dose pH adjuster or nutrients automatically to hold your target values.
Should I choose the Pro Controller or the IntelliDose?
The Pro Controller suits reservoir-based systems that need pH and multi-part nutrient dosing, scaling up to 12 nutrients through linked PeriPod dosers. The IntelliDose suits commercial fertigation that combines dosing of up to a 9-part blend with scheduled irrigation, day and night EC targets, and control of up to four irrigation pumps.
Which PeriPod doser do I need?
Choose by channel count and volume. The PeriPod M3 and M4 deliver up to 120ml per minute per pump across three or four channels. The PeriPod L3 delivers up to 1200ml per minute per pump for large commercial reservoirs. Multiple PeriPods link together for programs with more nutrient parts.
Can I monitor and control Bluelab equipment remotely?
Yes. Wi-Fi models such as the Guardian Monitor, pH Controller, and Pro Controller connect to the Edenic app for live readings, history reporting, and instant alarm notifications. The IntelliDose connects through the Bluelab IntelliLink gateway using Wi-Fi or Ethernet.
What happens if the power goes out?
Bluelab monitors and controllers store settings in non-volatile memory, so targets and alarm limits survive a power loss. Controllers resume dosing automatically once power returns, keeping the reservoir on track without manual intervention.
How does Bluelab prevent overdosing?
Built-in safety lockouts stop dosing when readings fail to respond as expected, for example when a probe fails or an adjuster bottle runs empty. The IntelliDose includes fail-safe shut-offs, and the External Lockout and Alarm Box lets growers wire float switches or other sensors to halt the Pro Controller instantly.
When should I use the Guardian Monitor Inline instead of the standard model?
Choose the Guardian Inline when probes need to sit inside pressurized irrigation or dosing lines. Its probe fittings handle 1-inch NPT installation rated to 100 psi. The standard Guardian Monitor Wi-Fi suits open reservoirs and tanks.
Expert Support

Need Help Choosing the Right Equipment?

Our team is here to help. Call us or browse our curated guides.