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COMBO METER - $308.00

It's all you need for simple and reliable crop management, and it's all within arm's reach!

The Bluelab Combo Meter is a conductivity, pH and temperature meter all in one.

The Bluelab pH Probe and the Bluelab Conductivity/Temperature Probe are simply placed into the solution and the selected reading is displayed on screen.

As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops daily nutrient requirements.

Calibration of the pH is simple with the push buttons on the meter and fresh calibration solutions. Conductivity and temperature do not need to be calibrated as this is locked in during manufacture.

Display options available in °C, °F, EC, CF, ppm 500 and ppm 700.


• Lightweight and portable

• Large easy to read display

• No calibration required for conductivity and temperature

• Successful pH calibration indicator

• Replaceable double junction pH probe

• Low battery indicator

• Simple push button pH calibration

• Battery operated, 2 AA batteries

• Auto off function


In just one glance it clearly conveys all 3 critical parameters for successful growth: pH, conductivity AND temperature.

The Bluelab Guardian Monitor is a constant indicator of the desired levels of EC/ppm 700/TDS/CF, pH and temperature, enabling the grower to optimise these parameters as the crop progresses through each growing phase.

The Bluelab Guardian Monitor is mains powered and is mounted to the wall or hung on a support and the probes simply placed into the reservoir.

With the Bluelab Guardian Monitor monitoring your crops 24 hours a day and with the ability to set high and low alarms, a flashing display lets you know if one parameter moves away from the ideal, allowing you to make the required adjustments quickly and effectively.


• Large easy to read displays

• No calibration required for conductivity and temperature

• Simple push button pH calibration

• Selectable values for conductivity and temperature

• Flashing high and low alarms

• Temperature compensation

• Greater tolerance to RF/electronic interference provided

• International power supply

• Replaceable double junction pH probe

• Adjustable display brightness

• Non-volatile memory


Big jobs require a big Truncheon! With a conductivity range right up to 6.0 EC (60 CF or 4200 ppm), it will never leave you short. The Commercial Truncheon® Nutrient Meter has been designed for hydroponic crops that require a higher than normal EC or CF requirement during their growing cycle. It's super tough, fully waterproof, has no on/off buttons to worry about and does not need calibrating. It's great for stirring your nutrient tank too!

It is essential when growing with a hydroponic solution to KNOW what the strength of the solution is before feeding your plants AND while they are growing. This is easy when you use the Commercial Truncheon! To take a reading of your solution, simply place the probe head into the solution for 1-2 minutes to reach the same temperature of your nutrient. Remove from the solution and place back in to take the reading as indicated by the flashing lights. Rinse the probe after use in fresh water and clean once a month to ensure the Commercial Truncheon Nutrient Meter remains accurate.


• EC (0.4-6.0), CF (4-60) and ppm scales (TDS and 700 scale)

• Fully waterproof

• No calibration required

• Auto sense on and off

• No external switches or adjustable buttons

• Battery life minimum 1 year (or shelf life of battery), 2 AA batteries