Bluelab Original Truncheon Meter no-shipping Connects directly to your water

Connects directly to your water supply with your own hookup (uses 1/4 in tubing)

Successful pH calibration indicators

For best use

Now Optimized for Coco Coir

Bluelab Original Truncheon Meter no-shipping Connects directly to your waterWith its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LEDs and no on off buttons to worry about, the Bluelab Truncheon Nutrient Meter has proven itself as the world's favorite nutrient meter. It is powered by three standard AA batteries. EC (02 3. 6), CF (2 36) and ppm scales (TDS and 700 scale). Fully waterproof design. No calibration required. Auto sense on and off. No external switches or