The Bluelab ph Pen is a hardy, compact pH and temperature pen. Perfect for quick and easy pH and temperature readings direct from your nutrient solution. Plants get their nutrient from minerals but they can only get all the right minerals they need if certain conditions are right. Think of nutrients like a lock. pH is the key. A key factor that affects food uptake is whether your solution is acid or alkaline. We measure this in pH.

Bluelab pH Pen Features:

• Fully waterproof – not just water resistant
• Simple two-point calibration process for accuracy
• One-year peace-of-mind warranty
• Automatic temperature compensation for accurate readings everywhere
• Auto-off function to extend battery life
• 1 AAA battery included – simply power on and go

Why we measure pH and Temperature;

Healthy growing plants, just like humans, need a balanced diet of appropriate nutrients (food). However, plants can only access these nutrients when the nutrient solution is within a certain pH range.

From a water chemistry perspective, pH (potential Hydrogen) plays a pivotal role in making the nutrients in your solution soluble so that they can be accessed by your plants. That’s why if your growing solution becomes too acidic or too alkaline, the plants won’t be able to get access to the nutrients they need to grow. The temperature of your growing solution is equally important as having a solution that’s too hot or too cold can affect growth rate and structure. Therefore a solution temperature of 18 – 22°C or 65 – 72°F is recommended.

Bluelab ph pen user manual;

https://files.plytix.com/api/v1.1/file/public_files/pim/assets/89/90/94/62/629490895d155f1bc7e496a7/texts/47/00/02/63/63020047077bc3febd8d05ac/BL_ENG_Manual_pH-Pen.pdf

Technical Specification;

• Automatic Temperature Compensation: Yes
• Operating Environment: 0 – 50 ̊C / 32 – 122 ̊F
• Measurement Resolution: 0.1 pH, 1 ̊C / 1 ̊F
• Measurement Range: 0.0 – 14.0 pH, 0 – 50 ̊C / 32 – 122 ̊F
• Measurement Accuracy: ± 0.1 pH, ± 1 ̊C / ±2 ̊F
• Calibration: pH requires two point, pH 7.0 & pH 4.0 or pH 10.0
• Power: 1 x AAA alkaline battery
• CE Compliance: Yes
• FCC Compliance: Yes
• RoHS Compliance: Yes
• Other specifications:
• Warranty: 1-YEAR
• Country of Origin: New Zealand