{"product_id":"ph-temperature-pen-digital-hydroponic-tester-australia","title":"Bluelab pH \u0026 Temperature Pen | Digital Hydroponic pH Tester Australia","description":"\u003ch2\u003eDigital pH \u0026amp; Temperature Pen – Waterproof Hydroponic pH Tester with ATC\u003c\/h2\u003e\u003cp\u003eThis digital pH and temperature pen is a compact, high-accuracy testing instrument designed for fast and reliable measurement of pH levels and solution temperature in hydroponic systems, nutrient reservoirs, and water sources.\u003c\/p\u003e\u003cp\u003eEngineered for durability and ease of use, the unit provides instant readings directly from solution, eliminating the need for complex testing procedures. Its fully waterproof construction ensures reliability in demanding grow environments, while automatic temperature compensation (ATC) maintains measurement accuracy across varying conditions.\u003c\/p\u003e\u003cp\u003eThe device features a simple two-point calibration system for precision control, making it suitable for both beginner and professional growers requiring consistent pH management for optimal nutrient uptake.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital pH and temperature measurement.\u003c\/strong\u003e Simultaneous pH and temperature readings from a single probe for fast, complete solution analysis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully waterproof construction.\u003c\/strong\u003e Submersible design built for reliable use in wet grow environments, not just splash-resistant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic temperature compensation (ATC).\u003c\/strong\u003e Adjusts pH readings based on solution temperature to maintain accuracy across varying conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast, direct measurement.\u003c\/strong\u003e Submerge and read. No mixing, no test strips, no delays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-point calibration.\u003c\/strong\u003e Simple manual calibration process for precision control across the full pH range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and portable.\u003c\/strong\u003e Handheld pen design for easy use across multiple reservoirs, tanks, and water sources.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubmerge the probe into solution.\u003c\/strong\u003e Insert directly into nutrient solution, reservoir water, or any liquid sample.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimultaneous pH and temperature sensing.\u003c\/strong\u003e The sensor measures both parameters at the same time for a complete reading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATC adjusts for temperature variation.\u003c\/strong\u003e Automatic temperature compensation corrects pH values in real time, eliminating temperature-induced measurement error.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstant display output.\u003c\/strong\u003e Results appear immediately on the digital screen for fast decision-making.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully waterproof body.\u003c\/strong\u003e Submersible construction rated for direct immersion in nutrient solutions and water samples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated temperature measurement.\u003c\/strong\u003e Dual-function sensor eliminates the need for a separate thermometer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATC technology.\u003c\/strong\u003e Automatic temperature compensation ensures consistent accuracy regardless of solution temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-point manual calibration.\u003c\/strong\u003e Calibrate at two reference points for high precision across the measurement range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto shut-off function.\u003c\/strong\u003e Extends battery life by powering down automatically when not in use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery included.\u003c\/strong\u003e Ready to use out of the box with 1 x AAA battery supplied.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydroponic nutrient reservoir pH testing Australia\u003c\/li\u003e\n\u003cli\u003eDigital pH meter for water quality monitoring\u003c\/li\u003e\n\u003cli\u003epH pen for nutrient solution management in DWC and recirculating systems\u003c\/li\u003e\n\u003cli\u003eAquarium and fish tank water pH testing\u003c\/li\u003e\n\u003cli\u003eSoil runoff and irrigation water pH measurement\u003c\/li\u003e\n\u003cli\u003eDrinking water and general water quality testing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Use Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponic nutrient reservoir testing.\u003c\/strong\u003e Monitor and maintain optimal pH levels for maximum nutrient availability and plant uptake.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAquarium water quality monitoring.\u003c\/strong\u003e Ensure stable pH conditions for fish and aquatic plant health.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil runoff pH testing.\u003c\/strong\u003e Measure leachate pH to assess soil and growing media conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrinking water testing.\u003c\/strong\u003e Verify water quality for safe consumption and general household use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat Sets It Apart\u003c\/h3\u003e\u003cp\u003eThis pH and temperature pen combines waterproof construction with automatic temperature compensation to deliver consistent, accurate readings across all growing conditions. Its compact form factor, fast response time, and simple calibration process make it an essential instrument for any grower managing nutrient solution pH on a regular basis.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Type.\u003c\/strong\u003e pH and temperature (simultaneous)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration.\u003c\/strong\u003e Two-point manual calibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Compensation.\u003c\/strong\u003e Automatic (ATC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Rating.\u003c\/strong\u003e Fully waterproof, submersible design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply.\u003c\/strong\u003e 1 x AAA battery (included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Off Function.\u003c\/strong\u003e Yes, battery saving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight.\u003c\/strong\u003e Approximately 0.1 to 0.2 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaged Shipping Weight.\u003c\/strong\u003e Approximately 0.2 to 0.3 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow often should I calibrate Bluelab pH \u0026amp; Temperature Pen?\u003c\/h3\u003e\n\u003cp\u003epH meters should be calibrated before every use or at minimum every 2–3 days during active grows. EC meters are more stable but should be verified against a known reference solution weekly. Bluelab pH \u0026amp; Temperature Pen uses two-point calibration for pH (4.0 and 7.0 buffer solutions) and single-point calibration for EC (2.77 mS\/cm standard). Regular calibration is the single most important factor in measurement accuracy.\u003c\/p\u003e\n\u003ch3\u003eHow do I store Bluelab pH \u0026amp; Temperature Pen properly?\u003c\/h3\u003e\n\u003cp\u003eAlways store pH probes wet — never allow the probe tip to dry out as this permanently damages the glass membrane. Use the probe storage solution supplied with Bluelab pH \u0026amp; Temperature Pen or Bluelab KCl storage solution. EC probes are more robust but should also be rinsed with clean water after each use. Store Bluelab pH \u0026amp; Temperature Pen at room temperature away from direct sunlight.\u003c\/p\u003e\n\u003ch3\u003eWhat should I do if Bluelab pH \u0026amp; Temperature Pen is reading incorrectly?\u003c\/h3\u003e\n\u003cp\u003eFirst, recalibrate using fresh buffer solutions — old or contaminated calibration fluid is the most common cause of inaccurate readings. Rinse the probe thoroughly with deionised or distilled water between calibrations. If readings are still inconsistent after recalibration, check the probe for physical damage or contamination. Most probes have a service life of 12–18 months with proper care.\u003c\/p\u003e\n\u003ch3\u003eIs Bluelab pH \u0026amp; Temperature Pen waterproof?\u003c\/h3\u003e\n\u003cp\u003eCheck the IP rating listed in the product specifications. Most handheld meters are splash-proof but not designed for submersion. Take care when measuring in deep reservoirs to avoid dropping the unit. Bluelab pH \u0026amp; Temperature Pen is designed for hydroponic nutrient solution testing — it is not rated for outdoor or continuous immersion use.\u003c\/p\u003e\n\u003ch3\u003eDoes Bluelab pH \u0026amp; Temperature Pen ship fast within Australia?\u003c\/h3\u003e\n\u003cp\u003eYes — Bluelab pH \u0026amp; Temperature Pen ships from our Australian warehouse with fast tracked delivery Australia-wide. Most east coast orders arrive within 2–5 business days. WA, NT, and TAS orders typically arrive within 5–12 business days.\u003c\/p\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":43187017383999,"sku":"PH-TEMP-PEN","price":144.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/6898\/8479\/files\/bluelab-ph-pen_penph_1_ca33244f-b461-423f-8b19-2a6f7d9937ea.webp?v=1777436478","url":"https:\/\/apexgrow.com.au\/products\/ph-temperature-pen-digital-hydroponic-tester-australia","provider":"Apex Grow","version":"1.0","type":"link"}