Bluelab Original Truncheon Meter Smithers Oasis AN Sensizym 4L

AN Sensizym 4L

These are excellent quality back draft dampers

A very powerful illuminated pocket microscope offers adjustable magnification from 60x - 100x

Clear plastic top for visual and precision cutting

2* special elastic steel cross

Bluelab Original Truncheon Meter Smithers Oasis AN Sensizym 4LWith its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LED's 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 (0. 2 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