Bluelab Truncheon Nutrient Meter grow-light-reflectors Combine the Bluelab Conductivity Pen

Combine the Bluelab Conductivity Pen with the Bluelab pH Pen (sold separately) for complete control over your plant's environment

look out for models with a RO membrane

Designed for home gardeners and farmers

poses several hazards

Bluelab Truncheon Nutrient Meter grow-light-reflectors Combine the Bluelab Conductivity PenBluelab Truncheon Nutrient Meter: The Indestructible EC Meter for Serious Growers The legendary Bluelab Truncheon Nutrient Meter: trusted by growers worldwide for decades. This robust and reliable conductivity meter is built to last a lifetime, providing accurate nutrient solution measurements for optimal plant growth. No more guesswork ensure your plants receive the perfect balance of nutrients with the Truncheon. Built to Last, Designed for Growers: