Aqua Master Tools H600 Pro (pH, EC, temperature)

Product detailed description

Aqua Master Tools H600 Pro is a handheld monitor for growers who have outgrown a pocket pen. It measures pH, EC, TDS, PPM and liquid temperatures using separate replaceable electrodes, and everything comes in a sturdy case – it is a device for use by the tank and in the workshop, not in your pocket.

Why separate electrodes

H600 Pro has cable-connected electrodes, a pH probe with a BNC connector, so you can replace a worn probe separately – the instrument body continues to serve you. The built-in calibration indicator also tells you when it is time to calibrate.

What H600 Pro measures

• pH 0.1 to 14.0 pH,
• EC 0.0 to 19.9 mS/cm,
• TDS 0.0 to 19.99 PPT,
• PPM 0 to 1999 PPM (factory set to the 700 scale),
• temperature 0 °C to 50 °C.

pH determines whether a plant can absorb nutrients at all – outside the correct range, some elements become unavailable. As a guide, keep hydroponic and coco solutions around 5.5 to 6.5 pH, and soil closer to 6.0 to 7.0 pH. EC shows the strength of the solution, meaning the concentration of dissolved salts, not the quality of the fertiliser. With PPM, always check the scale: the same EC will produce a different reading on the 500 scale than on the 700 scale, so when comparing with someone else’s chart, EC in mS/cm is the more reliable common language.

Package contents and what to buy separately

The box contains a handheld monitor, a 9 V battery, a pH electrode and a shipping case. The EC electrode is not included, even though the device can operate it – if you also want to measure conductivity, plan to purchase it separately. The basic equipment also includes calibration solutions and KCl storage solution for storing the pH probe.

Calibration and probe care

The monitor is calibrated at the factory, so you can measure your first tank before even unpacking the calibration solutions – but you will only maintain its accuracy through regular calibration. pH is calibrated automatically at two points, using pH 4 calibration solution and pH 7. The EC section has one-point automatic calibration at EC 1.4, using EC 1.413 solution. Calibrate approximately once a month and always use fresh solution from an unopened pack; never pour used solution back into the bottle. The pH electrode is made of glass, so it must be kept in KCl storage solution between measurements and must not dry out.

Parameters

• pH range: 0.1 to 14.0 pH
• EC range: 0.0 to 19.9 mS/cm
• TDS range: 0.0 to 19.99 PPT
• PPM range: 0 to 1999 PPM, factory scale 700 PPM
• Temperature range: 0 °C to 50 °C
• Resolution: pH 0.1 pH, EC 0.1 mS/cm, TDS 0.01 PPT, PPM 10 PPM, temperature 0.1 °C
• pH accuracy: +/-0.1 pH
• EC, TDS and PPM accuracy: +/-2 % F.S.
• Temperature accuracy: +/-0.5 °C
• Automatic temperature compensation in the range 0 to 50 °C
• Calibration: pH two-point automatic 4.0 and 7.0 pH, EC one-point automatic EC 1.413
• pH electrode connector: BNC
• Power supply: 1x 9 V battery (included), battery status indicator
• Automatic shut-off: after 8 minutes
• Metre protection: IP62, electrode protection: IP67
• Dimensions: 210 x 120 x 60 mm, weight 430 g
• Manufacturer’s warranty: 1 year for the device, 6 months for the pH electrode
• Package contents: handheld monitor, 9 V battery, pH electrode, shipping case

Aqua Master Tools provides a 6-month warranty for the pH electrode and one year for the device body. Rinse the electrode after every measurement, remove deposits from it from time to time using cleaning solution, and keep it in KCl storage solution between measurements.

Which H600 version to choose

H600 Pro is the version for liquids – nutrient solution in a tank, prepared watering solution, runoff or well water. If you want to measure directly in coco, peat or soil, choose H600 Pro Substrate, whose probes are adapted for soft media. Both versions share the same electronics, ranges and calibration method; they differ in the intended use of their probes.

Frequently asked questions

Is the EC electrode included with H600 Pro?

No. The package contains a handheld monitor, a 9 V battery, a pH electrode and a shipping case. You purchase the EC electrode separately, even though the device can measure conductivity, TDS and PPM. Bear this in mind when budgeting: if you want to monitor solution strength from the outset, order the EC electrode together with the metre.

Does the pH electrode need to be stored in solution?

Yes. The glass pH electrode is stored in KCl storage solution, which protects it from drying out. Rinse the probe with clean water after every measurement and return it to the cap containing the solution. This does not apply to Aqua Master Tools dry-storage pens, but H600 Pro has a traditional glass probe.

Is the probe or the entire device replaced on H600 Pro?

Only the probe. The electrodes are separate and replaceable, and the pH electrode connects via a BNC connector, so the monitor body continues to serve you. Aqua Master Tools provides a 1-year warranty for the device and 6 months for the pH electrode. Recalibrate the metre after every replacement: pH at two points using 4.0 and 7.0 solutions, and conductivity at one point using the EC 1.413 standard.