Controller Replacement Probe - (Pack 24) 5m length with Connector Block

The G.A.S Controller Replacement Probe Pack 24 is a temperature and humidity sensor designed for compatible G.A.S environmental controllers that use the newer connector block attachment. Accurate environmental monitoring is essential in hydroponics and indoor growing setups, as temperature and humidity directly influence plant health, nutrient uptake, and overall growth inside a grow tent or grow room.

This replacement probe restores precise environmental readings, allowing your controller to correctly regulate ventilation equipment, humidifiers, and other climate control devices. With a 5 metre cable, the probe can be positioned at canopy height or anywhere in the grow room where accurate environmental readings are needed.

Key Benefits

• Replacement temperature and humidity probe for compatible G.A.S controllers
• 5 metre probe cable for flexible placement in grow rooms
• Connector block attachment for newer controller models
• Restores accurate environmental monitoring and climate control
• Supports stable grow room conditions for plant health
• Suitable for hydroponics, coco and soil indoor growing setups

How It Solves Grow Problems

Environmental controllers rely on precise sensor data to regulate ventilation and humidity. If a probe becomes damaged or inaccurate, growers may experience incorrect temperature readings or unstable humidity control inside the grow room. This can lead to slowed vegetative growth, humidity problems during flowering, and reduced plant health.

Replacing the probe ensures your controller receives accurate environmental data so it can properly manage fans, humidifiers, heaters and dehumidifiers. Maintaining stable conditions supports healthy root development, improves nutrient uptake, and helps maintain optimal climate levels during both vegetative growth and the flowering stage.

How to Use

1. Turn off and unplug the G.A.S controller before replacing the probe.

2. Remove the controller back cover to access the probe connection.

3. Locate the connector block attachment inside the unit.

4. Disconnect the existing probe from the connector block.

5. Plug the new Pack 24 probe directly into the connector block.

6. Replace the controller cover and secure it properly.

7. Position the probe at canopy height in your grow tent or grow room for accurate temperature and humidity readings.

Before purchasing, remove the controller back cover to confirm which probe type your controller uses, as some older models use a push-fit wire connection instead.