AquaMaster Tools S300 Pro3 Substrate Pen - pH, temp

AquaMaster Tools S300 Pro3 Substrate Pen – pH & Temperature is a professional-grade substrate pH meter designed for accurate measurement of pH levels and temperature directly in growing media such as soil, coco coir, and rockwool. This advanced digital substrate tester is essential for growers who need precise insight into root zone conditions to optimise nutrient uptake and plant health.

Engineered with high-quality sensors and automatic temperature compensation (ATC), the S300 Pro3 Substrate Pen delivers fast, reliable readings directly from the substrate, eliminating the need for runoff testing. Its robust probe is specifically designed to penetrate growing media with ease, while the clear digital display ensures quick and accurate monitoring.

Ideal for hydroponics, soil cultivation, coco growing, greenhouse production, and indoor grow setups, this portable pH and temperature meter helps growers maintain the perfect root zone environment, prevent nutrient lockout, and maximise plant performance. Its durable, water-resistant design and easy calibration make it suitable for both hobby and professional use.

Key Features & Benefits:

• Measures pH and temperature directly in substrate
• Designed for soil, coco coir, and rockwool media
• Automatic Temperature Compensation (ATC) for accurate readings
• Strong probe for easy insertion into growing media
• Clear digital display for quick monitoring
• Ideal for hydroponics, indoor growing, and greenhouse use

For precise root zone management and optimal plant health, the AquaMaster Tools S300 Pro3 Substrate Pen provides a reliable, high-performance solution for modern growers.