Bluelab pH Pen, appareil de mesure

Description

Bluelab pH-Pen – check nutrient solution pH and temperature before feeding

The Bluelab pH-Pen is a digital handheld meter for checking nutrient solutions. It measures pH and temperature, allowing you to test a freshly prepared feed or take readings directly from your reservoir. Suitable for beginners and experienced growers, it helps you base your feeding checks on measured values rather than guesswork.

Take a reading and hold it on screen

Immerse the probe tip in the solution and wait for the reading to stabilise. Automatic temperature compensation accounts for temperature effects on the pH measurement. The hold function keeps the current reading on screen, so you can lift the pen out of the reservoir to read it comfortably. Temperature can be displayed in °C or °F. The pen switches off automatically after four minutes to conserve battery power.

This model does not measure EC. To check electrical conductivity as well, pair it with the Bluelab EC-Pen.

Prepare the probe and maintain calibration

Before first use, soak the probe tip in KCl storage solution for 24 hours. Then calibrate with fresh pH 7.0 solution, followed by pH 4.0 solution. Rinse the tip with clean tap water between solutions. The Bluelab pH Cleaning and Calibration Set is a useful accessory for ongoing maintenance.

The calibration symbol disappears after 30 days to remind you that calibration is due. Calibrate monthly, and again after cleaning, hydration or a battery change.

Keep the fixed probe hydrated

The pH probe is not replaceable and must remain moist. After each measurement, rinse the tip with clean tap water and refit the storage cap. Keep the wetting seal inside the cap moist with Bluelab KCl storage solution. Do not use distilled, deionised or pure reverse osmosis water for rinsing, hydration or storage, as these can permanently damage the probe.

Technical details:

• Product type: Digital handheld pH and temperature meter for liquids
• Model: PENPH
• pH measurement range: 0.0–14.0 pH
• pH resolution: 0.1 pH
• pH accuracy at 25 °C: ±0.1 pH
• Temperature measurement range: 0–50 °C or 32–122 °F
• Temperature resolution: 1 °C or 1 °F
• Temperature accuracy at 25 °C: ±1 °C or ±2 °F
• Temperature compensation: Automatic
• Calibration: Two-point calibration using pH 7.0 and pH 4.0; alternatively pH 7.0 and pH 10.0
• Calibration indicator: Confirmation symbol with reminder after 30 days
• Probe: Fixed, non-replaceable double-junction pH probe
• Display: Backlit LCD
• Hold function: Retains the current reading on the display
• Housing: Waterproof and floats
• Automatic shut-off: After four minutes
• Battery warning: Low battery indicator
• Minimum solution conductivity: 0.2 mS/cm
• Operating and storage temperature: 0–50 °C
• Power supply: 1 × AAA alkaline battery
• Included: 1 × Bluelab pH-Pen, 1 × AAA alkaline battery, plus one 18 ml sachet each of pH 7.0 calibration solution, pH 4.0 calibration solution and KCl storage solution

Sold and shipped by Growmart (Hamburg, Germany), which delivers across Europe with DHL. Prices are set by the vendor and you complete your purchase on their site.