Skip to main content

Send Us a Message

Search

TrolMaster PCT-3 Inline EC & Temperature Sensor

starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Options:Pay in 6, Pay Monthly
Amount:Up to $1,500 (Pay in 6)
$1,501–$30,000 (Monthly)
Schedule:Bi-weekly / Monthly
Term:6 bi-weekly / 6–60 months
Interest:0% (up to $1,500) / 11.99% APR
Not available in:Quebec
  • Compatible with standard 3/4 inch PVC tee fittings for direct inline installation.
  • Includes 3.6 metres of cable for flexible placement within irrigation manifolds.
  • Mini DIN connector provides a direct, secure signal path to AMP-3 or similar sensor boards.
  • 3-year warranty on all mechanical and electronic components
  • View More Details

Earn 378 points for shopping and get $3.78 off your next order. Join Harvest Club for free.

Questions? Talk to a specialist. Mon–Fri, 9am–5pm PST
Free Shipping On Most Items To the Provinces*
Transparent Pricing Backed w/ price match guarantee
4.8/5 Rating 1938+ verified reviews
Secure Checkout SSL encrypted payments

Send Us a Message

VOLUME PRICING

Commercial & Bulk Purchasing

We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

Commercial Inquiry

Contact Information
THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are adding inline nutrient monitoring because manual spot checks fail to catch EC fluctuations between feeding cycles.
  • You are switching to a plumbed sensor because your existing drop-in probes keep getting knocked out of place.

What We Found

  • The shorter probe length saves a surprising amount of headache when you are squeezed into a tight manifold.
  • The 3.6-metre cable is long enough that you can actually reach your controller without buying an extension.

What Users Say

  • Growers who integrated these into their manifold say they spend less time recalibrating compared to their old probes.
  • Users report that the stable signal prevents the ghost readings they used to see with cheaper, long-cable setups.

TrolMaster PCT-3 Inline EC & Temperature Sensor

Managing nutrient levels in a recirculating system shouldn't involve bulky sensors and custom plumbing headaches. The TrolMaster PCT-3 is a specialized inline EC and temperature sensor designed to integrate seamlessly into your existing irrigation manifold. Unlike the standard TrolMaster PCT-1 or PCT-2, which are often used as drop-in probes, the PCT-3 ensures precision monitoring in pressurized lines without the need for complex adapters or modified plumbing.

Whether you are running a high-tech facility or a simple home setup, the PCT-3 offers the versatility needed for both inline plumbing and reservoir drop-in applications. It provides a clean, stable signal path to your controller, allowing you to maintain the perfect nutrient balance for your crops with absolute confidence. The 3.6-meter cable ensures you have the reach necessary for flexible installation across hydroponic, greenhouse, and laboratory environments.

Compatibility: TrolMaster Aqua-X (including the NFS-1 via AMP-2, and the NFS-2 or Aqua-X NFS-3 via AMP-3), Green-X (GCS-1 via AMP-3), and Tent-X (TCS-1 via AMP-3)

What's Included

  • 1 × Inline EC & Temperature Nutrient Sensor (PCT-3)

Features

🔩
Standard ¾" PVC Tee Compatible

Reduced-diameter sleeve and threaded body install directly into standard ¾" PVC tee fittings — no custom adapters required.

📏
Compact for Tight Spaces

Shortened probe length fits confined irrigation manifolds and dense plumbing runs where full-length probes physically cannot fit.

🔌
Mini DIN Direct Connection

Connects directly to sensor boards like the AMP-3 via Mini DIN terminal for a clean, secure signal path.

📡
3.6m Cable Reach

3.6-meter cable provides ample reach for flexible positioning within the irrigation system without requiring extension cables.

💧
Inline & Drop-In Compatible

Supports both ¾" PVC tee inline installation and reservoir drop-in use across hydroponics, greenhouse, and lab setups.

TrolMaster PCT-3 Specifications

Specification Value
Measurement Parameters EC (Electrical Conductivity) & Water Temperature
Cable Length 3.6 meters (~12 ft)
Connector Type Mini DIN
Installation Type Inline (¾" PVC tee) or Drop-in reservoir
Compatible Sensor Boards AMP-2, AMP-3
Compatible Controllers Aqua-X NFS-1, Aqua-X NFS-2, Green-X GCS-1, Tent-X TCS-1
Working Environment Temperature 32–122°F (0–50°C), Humidity <90%

Support & Manuals

Warranty

TrolMaster backs the PCT-3 with a 3-year warranty from the original date of purchase, covering all mechanical and electronic components under normal operating conditions. Components that fail due to abnormal or improper usage are excluded from this coverage.

FAQs

What does the PCT-3 measure?+

The PCT-3 measures electrical conductivity (EC) and water temperature. When connected to a compatible sensor board, both readings are sent to the TrolMaster controller and displayed on the sensor board's LCD and the master controller display.

Does the PCT-3 include a sensor board?+

No, the PCT-3 is the probe only. It requires a compatible AMP-3 or AMP-2 sensor board to connect to your TrolMaster system.

What plumbing fittings is the PCT-3 compatible with?+

The PCT-3 is designed to fit directly into standard ¾" PVC tee fittings, which are common in most greenhouse and hydroponic irrigation systems.

Can the PCT-3 be used in a reservoir?+

Yes, the PCT-3 is versatile enough to be used either as an inline sensor within your plumbing or as a drop-in probe for static reservoir monitoring.

Which controllers is it compatible with?+

It is compatible with the Aqua-X series, including the Aqua-X NFS-1 and NFS-2, as well as Green-X GCS-1 and Tent-X TCS-1 systems when paired with the appropriate sensor board.

How long is the cable?+

The sensor features a 3.6-meter (approximately 12-foot) cable, providing plenty of length for most standard grow room and greenhouse installations.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (778) 300-3154

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

10+
Years of Specialist Knowledge
4.8★
Over 1,900 Verified Reviews
50,000+
Growers Served
120+
Top Equipment Brands in Stock