Bluelab Truncheon Nutrient Meter V2 - 40cm - EC, CF, PPM 500, PPM 700

Four Conductivity Scales at a Glance, No Calibration Needed

Some EC meters ask a grower to pick a unit system and stick with it; the Bluelab Truncheon Nutrient Meter V2 displays all four common conductivity scales at once. EC, CF, PPM 500, and PPM 700 all appear together on a single line of daylight-readable blue LEDs, with no buttons, switches, or calibration steps standing between submerging the probe and reading a result.

The 40cm probe is fully waterproof with a removable shroud for thorough cleaning, measures up to 3.6 EC (36 CF, 1800 PPM 500, 2520 PPM 700), and runs on 3 included AA batteries.

Key Features & Benefits

• No calibration required — factory calibrated and ready to dip and read.
• Four conductivity scales at once — EC, CF, PPM 500, and PPM 700 shown together on one line.
• Daylight-readable LEDs — visible in bright sunlight and dark grow room conditions alike.
• Auto on/off — activates when submerged and turns off when removed, no buttons needed.
• Waterproof with removable shroud — shroud detaches for thorough cleaning between reservoirs.

Who Should Use This

Hydroponic growers at any scale who want a reliable, low-maintenance EC meter for daily nutrient solution monitoring, without a calibration routine to manage, are the direct fit for this meter.

About Bluelab Corporation

Bluelab, a New Zealand company with more than three decades in conductivity measurement, has offered the Truncheon design as its no-calibration EC meter for standard nutrient concentration ranges.

Frequently Asked Questions

Does the Truncheon V2 need to be calibrated?

No, it is factory calibrated and requires no field calibration at any point during its service life. Simply submerge it in solution for a reading.

How does the auto on/off work?

The meter automatically detects when it is submerged in liquid and activates the display, then turns off when lifted out. No buttons or switches are needed.

What is the maximum EC range?

This meter measures up to 3.6 EC (36 CF, 1800 PPM 500, 2520 PPM 700). For crops that regularly run higher than this range, the Bluelab Commercial Truncheon is the better fit.

Can the shroud be removed for cleaning?

Yes, the shroud detaches for thorough cleaning and disinfection. This helps maintain hygienic operation between reservoir checks.