Bluelab® Truncheon Nutrient Meter is the world's most trusted calibration-free nutrient measuring instrument. For over 30 years, the Truncheon has been the go-to tool for growers who want dead-simple, zero-maintenance nutrient measurement. Dip the probe end into your solution — the LED bar graph instantly lights up showing EC, CF, and ppm values simultaneously.
Key Features
- Zero Calibration — Never needs calibrating — accuracy guaranteed from factory to field, forever
- Triple Scale Display — Shows EC (mS/cm), CF, and ppm simultaneously on LED bar graph
- Indestructible Probe — No glass electrode to break — graphite sensing elements last indefinitely
- Fully Waterproof — Survives drops into tanks, splashes, and greenhouse humidity
- No Buttons — Automatic operation — just dip and read
- Auto Temperature Compensation — Accurate from 5–45°C
Technical Specifications
| Measurements | EC: 0.2–3.6 mS/cm | CF: 2–36 | ppm 500: 100–1800 | ppm 700: 140–2520 |
| Display | LED bar graph (triple scale) |
| Calibration | None required (ever) |
| Waterproof | Yes |
| Power | 3 × AAA batteries (included) |
| Length | 300mm |
