Bluelab EC PenThe Bluelab EC Pen is a compact, reliable tool for measuring the electrical conductivity (EC), TDS (ppm), and temperature of your nutrient solution. Whether you're growing in hydro, coco, or soil, this pen provides fast, accurate readings to help you maintain optimal nutrient strength for healthy plant growth. With a backlit LCD display, waterproof design, and automatic temperature compensation, the EC Pen is perfect for everyday use by both beginner

Cable ports for electrical access

1 x 9mm Tee Connector

Versatility: Suitable as a standalone or supplemental fixture in larger LED arrays

Plastic corner joints for lightweight

Double-sleeved ports for ventilation and cable access

Indoor growers starting early-stage plants

Indoor growing in small to medium spaces

This additive is particularly effective when used alongside other Buddha’s Tree products

it's ideal for LED or HID setups and provides ample room for 2–6 plants depending on pot size and training method

and compost-safe

Recommended Use: Ideal for compact LED setups (100W–300W)

Durable Steel Frame: The Ø19mm steel poles provide stability and can support up to 20 kg of grow lights