{"product_id":"digital-ph-pen-with-calibration-solution","title":"Digital pH Pen with Calibration Solution","description":"\u003cp\u003eA pocket digital pH pen for checking your aquarium water without reagents or colour charts. Switch it on, dip the tip into your sample, give it a gentle stir and read the result off the LCD once the number settles.\u003c\/p\u003e\n\u003cp\u003epH is worth keeping an eye on in any tank. It shifts with your water source, substrate and hardscape, and in a planted tank it moves with CO₂: injected CO₂ lowers pH while it runs, so many aquascapers compare readings with the CO₂ on and off to see how much it is doing. A pen makes those regular checks quick and easy.\u003c\/p\u003e\n\u003cp\u003eCalibration solution is included so you can set the pen up before first use and check it again over time. Every pH electrode drifts as it ages, so recalibrating now and then keeps your readings honest. Follow the instructions supplied with the pen for the calibration steps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLCD screen shows the pH reading\u003c\/li\u003e\n\u003cli\u003eSlide on\/off switch on the top\u003c\/li\u003e\n\u003cli\u003eGlass sensing electrode at the tip\u003c\/li\u003e\n\u003cli\u003eMarked immersion line, so you know how far to dip it\u003c\/li\u003e\n\u003cli\u003eProtective cap keeps the electrode safe and moist between uses\u003c\/li\u003e\n\u003cli\u003ePocket clip on the back\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to use\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eTake off the protective cap.\u003c\/li\u003e\n\u003cli\u003eSlide the switch to turn it on, then dip the electrode into the water, no deeper than the immersion line.\u003c\/li\u003e\n\u003cli\u003eStir gently and wait for the reading to stabilise.\u003c\/li\u003e\n\u003cli\u003eRinse the electrode with distilled water, dry it gently with a soft cloth and put the cap back on.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLooking after it\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRinse the electrode with distilled water before and after each use.\u003c\/li\u003e\n\u003cli\u003eKeep the cap on when you're not using it so the electrode doesn't dry out.\u003c\/li\u003e\n\u003cli\u003eFor long-term storage, keep the electrode moist.\u003c\/li\u003e\n\u003cli\u003eDon't submerge the pen above the immersion line.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 × digital pH pen\u003c\/li\u003e\n\u003cli\u003eCalibration solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e 15.1 × 3.1 × 2.0 cm\u003c\/p\u003e","brand":"The Aquascape Shop","offers":[{"title":"Default Title","offer_id":67837702406386,"sku":"TAS-PHPEN","price":24.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/9193\/2914\/files\/digital-ph-pen-meter-aquarium-front.png?v=1792660758","url":"https:\/\/aquascapeshop.com\/zh\/products\/digital-ph-pen-with-calibration-solution","provider":"The Aquascape Shop","version":"1.0","type":"link"}