TrolMaster Aqua X Sensor Board (AMP-2)

The TrolMaster Aqua X Sensor Board (AMP-2) is an analog module that connects the Aqua-X irrigation controller to a set of precision pH, EC, and temperature probes. Once installed, the AMP-2 continuously samples water quality data and displays live readings on both the Aqua-X unit and the TrolMaster mobile app. Configurable high/low limit alerts provide 24/7 notification when pH, EC, or temperature drifts outside your target range.

TrolMaster Aqua X Sensor Board (AMP-2) Specifications

Physical and compatibility specifications sourced from the canonical product listing (SKU AMP-2, TrolMaster).

Specification	Value
Brand	TrolMaster
Model / SKU	AMP-2
Module Type	Analog Sensor Board
Measurements	pH, EC (electrical conductivity), and water temperature
Compatible Controller	TrolMaster Aqua-X
Compatible Probes	PCT-1, PCT-2, PPH-1, PPH-2
Weight	0.50 lb (0.4982 lb)
Data Display	Aqua-X unit display and TrolMaster mobile app

Why Choose the TrolMaster Aqua X Sensor Board (AMP-2)

The AMP-2 adds real-time water quality monitoring to any Aqua-X system without requiring a separate standalone meter. Here is what makes it a practical addition to a controlled irrigation setup:

• Three parameters in one board. The AMP-2 measures pH, EC, and water temperature simultaneously from a single probe connection point, reducing the number of individual instruments you need at the reservoir.
• Continuous sampling with app visibility. Readings are pushed to both the Aqua-X controller display and the TrolMaster mobile app, so you can check water quality remotely without walking to the reservoir.
• Configurable limit alerts. You can set minimum and maximum thresholds for each parameter. When any reading goes out of range, the Aqua-X triggers an alert — useful for catching pH drift or EC swings before they affect plant uptake.
• Works with multiple probe models. The AMP-2 is compatible with both the PCT-1/PCT-2 and PPH-1/PPH-2 probe families, giving you flexibility if you already own TrolMaster probes or plan to upgrade.
• Compact and lightweight. At under half a pound, the AMP-2 installs easily alongside the Aqua-X without adding bulk to the control panel.

Best Uses for the TrolMaster Aqua X Sensor Board (AMP-2)

The AMP-2 is designed for growers who already run the Aqua-X irrigation controller and want to add automated water quality monitoring to their workflow. It fits well in these situations:

• Recirculating hydroponic systems — DWC, NFT, and ebb-and-flow setups where reservoir pH and EC must stay within tight bands throughout the day. Continuous monitoring catches drift before it compounds.
• Automated drip and irrigation systems — When the Aqua-X is already managing irrigation scheduling, adding the AMP-2 closes the loop by monitoring the water that gets delivered to the root zone.
• Multi-site or remote grows — Growers who monitor their environment through the TrolMaster app benefit from having water quality readings in the same dashboard alongside climate data.
• Facilities using RO water — Reverse osmosis water has near-zero baseline EC, making it important to verify that nutrients have been added to the correct concentration. The AMP-2 provides a real-time confirmation. If you use a Hydro-Logic RO system to prepare your feed water, pairing it with the AMP-2 gives you an end-to-end view of water quality from source to reservoir.
• Growers calibrating EC probes regularly — If your workflow already includes routine electrode maintenance, the AMP-2 works with probe kits such as the Apera GroStar GS3-E replacement EC electrode for cross-checking conductivity readings.

Compatibility

The AMP-2 is designed exclusively for use with the TrolMaster Aqua-X irrigation controller. It is not a standalone meter and will not function independently of the Aqua-X system.

Supported probe models:

• PCT-1 and PCT-2 — TrolMaster EC and temperature probes
• PPH-1 and PPH-2 — TrolMaster pH probes

The AMP-2 connects directly to the Aqua-X unit. Once paired, sensor data is displayed on the controller screen and is available in the TrolMaster app. Limit thresholds for pH, EC, and temperature are configured through the Aqua-X interface.

If you are building out a water management station alongside the AMP-2, note that good aeration at the reservoir is a complementary practice. An Active Aqua multi-outlet air pump paired with diffusers helps keep dissolved oxygen levels stable and prevents stratification that can skew temperature readings near the probe.

This module does not include probes. Probes must be purchased separately. Verify that your Aqua-X firmware is current before installing the AMP-2 to ensure full compatibility with the app data display feature.

Sources & Further Reading