- 1 × Inline EC & Temperature Nutrient Sensor (PCT-3)
TrolMaster PCT-3 Inline EC & Temperature Sensor
- Measures electrical conductivity and water temperature across a 0 to 5 mS/cm range
- Compatible with Aqua-X, Green-X, and Tent-X controller platforms
- Includes a 3.6 meter cable with a Mini DIN male connector
- 3-year warranty on all mechanical and electronic components
- View More Details
Earn 229 points for shopping and get $2.29 off your next order. Join Harvest Club for free.
Questions? Talk to a specialist.
Mon to Fri, 9am to 5pm PST
- Over 50,000 CustomersTrust Trimleaf
- Transparent PricingBacked w/ price match guarantee
- 4.8/5 Top Quality Store on Google
- Secure CheckoutSSL encrypted payments
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
- You are integrating EC and temperature monitoring into your manifold because you want accurate, real-time data without the mess of custom plumbing.
- You are upgrading your sensor array to a compact unit because you have limited space in your irrigation setup and standard drop-in probes do not fit.
- The PCT-3 uses a shortened probe length to fit into tight manifold spaces where full-sized probes simply cannot go.
- You should keep the probe wet at all times, because a dried sensor can cause the unit to become defective.
- Operators who switched to the inline manifold mount report they spend less time checking nutrient levels because the signal path remains stable.
- Users who installed this in confined plumbing runs say the compact size saved them from having to tear down and rebuild their manifolds.
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)
All Sales Final
What's Included
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
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.
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.
The PCT-3 is designed to fit directly into standard ¾" PVC tee fittings, which are common in most greenhouse and hydroponic irrigation systems.
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.
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.
The sensor features a 3.6-meter (approximately 12-foot) cable, providing plenty of length for most standard grow room and greenhouse installations.
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.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.