Bluelab Original Truncheon PPM Nutrient Meter

Gardeners can easily measure and maintain nutrient strength levels with the waterproof Truncheon Meter. Truncheon Meter reads in EC (0.2-3.6), CF (2-36), TDS/ppm 500 (100-1800) and ppm 700 (140-2520). Accurate within å± 4% of reading with a resolution of 0.1 EC, the Truncheon runs on three AA alkaline batteries and comes with a five-year manufacturer's guarantee.

Fully waterproof
Auto on/off function
No calibration required
Daylight readable blue LED's
Provided with EC, ppm 500, ppm 700 and CF scales