Bluelab OnePen

The Bluelab OnePen is a streamlined, professional-grade meter that measures pH, conductivity (EC/ppm), and temperature—all in a single, compact device. Designed for growers who value simplicity and precision, the OnePen delivers fast, accurate readings that enhance your nutrient management and optimise plant health.

With Automatic Temperature Compensation (ATC) and a bright backlit display, the OnePen ensures reliable performance, whether you're working in the grow tent, greenhouse, or on the move. It’s a smart investment for every grower focused on streamlined functionality and maximum results.

Key Features

• 3-in-1 Functionality – Measures pH, conductivity (select EC, ppm 500, ppm 700), and temperature in one tool.

• Automatic Temperature Compensation (ATC) – Guarantees accurate readings across all conditions.

• Backlit Display – Crisp and clear visuals for easy usage in any lighting.

• Factory Calibrated – Ready to use right out of the box.

• Durable & Portable – Built to float for added durability and convenience.

• Versatile Units – Displays temperature in both °C and °F; switchable conductivity units.

Applications

• Hydroponic and Aquaponic Systems

• Indoor Grow Rooms & Greenhouses

• pH and Nutrient Solution Monitoring

• Cannabis Cultivation and Sensitive Crop Management

• Ideal for when you need fast, accurate readings without cluttering your setup with multiple devices.