Bluelab Original Truncheon Meter With its super tough, high quality, daylight readable blue LED's. The Bluelab Truncheon® Nutrient Meter has proven itself as the world's favourite 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 adjustable buttons
5 year Bluelab® Guarantee.