--- product_id: 48177673 title: "Bluelab PENPH pH Pen Fully Waterproof Pocket Tester, Easy Calibration, Double Junction Probe for Improved Accuracy and Durability, White" brand: "bluelab" price: "€ 217.92" currency: EUR in_stock: true category: "Bluelab" url: https://www.desertcart.hr/products/48177673-bluelab-penph-ph-pen-fully-waterproof-pocket-tester-easy-calibration store_origin: HR region: Croatia --- # Fully waterproof design Double junction probe for lab-grade accuracy Easy 2-point calibration & auto temp compensation Bluelab PENPH pH Pen Fully Waterproof Pocket Tester, Easy Calibration, Double Junction Probe for Improved Accuracy and Durability, White **Brand:** bluelab **Price:** € 217.92 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of the curve with precision pH testing that fits in your pocket! ## Quick Answers - **What is this?** Bluelab PENPH pH Pen Fully Waterproof Pocket Tester, Easy Calibration, Double Junction Probe for Improved Accuracy and Durability, White by bluelab - **How much does it cost?** € 217.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48177673-bluelab-penph-ph-pen-fully-waterproof-pocket-tester-easy-calibration) ## Best For - bluelab enthusiasts ## Why This Product - Trusted bluelab brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready When You Are:** Includes AAA battery, calibration solution, and lanyard—calibrate and test on the go with confidence. - • **Built to Brave the Elements:** Fully waterproof and washable, this pocket tester thrives in any environment—rain or shine. - • **Longevity Meets Reliability:** Double junction probe extends lifespan and accuracy beyond standard pens and strips. - • **Precision at Your Fingertips:** Lab-quality glass probe ensures pinpoint pH readings for hydroponics, pools, brewing, and more. - • **Smart Calibration, Zero Hassle:** Two-point calibration with reminders keeps your readings reliable without the guesswork. ## Overview The Bluelab PENPH pH Pen is a fully waterproof, pocket-sized digital tester featuring a durable double junction glass probe for superior accuracy and lifespan. It offers easy two-point calibration with auto temperature compensation, a backlit LCD display, and calibration reminders, making it ideal for professionals managing hydroponics, pools, brewing, and water quality. Included accessories and a 1-year warranty ensure a ready-to-use, reliable tool trusted worldwide. ## Description Product Description Bluelab PENPH pH Pen Fully Waterproof Pocket Tester, Easy Calibration, Double Junction Probe for Improved Accuracy and Durability Legal Disclaimer SEE OUR FEEDBACK TO BUY WITH CONFIDENCE. EVERYTHING WE SEND OUT IS IN PLAIN PACKAGING..! For UK we accept PayPal, money orders, personal cheque, bank transfers or credit cards. Money orders, cheque or cash sent must include a reference or eBay username plus the item number, Postal orders and cash must be sent recorded delivery as we cannot take responsibility for lost money. Alternatively you are more than welcome to collect your order from our premises in cambridge and browse our shop which stocks over 1000 products. Delivery times: Please see our feedback for customer’s comments on speed of delivery. We carry a huge stock level and most courier orders placed before 4 pm are received the next day. For multiple items please click on ‘Request total from seller’ on the payment page. You will be charged the highest postage cost for 1 item then £1 for each additional item. You will not pay more than £10 delivery (ex. heavy items i.e. soils, lights etc.) Items less than 2kg in weight can be sent throughout the UK and N.Ireland at our standard postal rates by Royal Mail Items over 2kg are sent by courier where a delivery surcharge applies to: Highlands & Isle of Wight: Before 16:00 only £16 up to 20kgs in weight for post codes: AB37-38,41-45,51,56, FK19-21, IV1-28,30-37,40,54,63 KW1-3,5-14, PA21-40, PH15-26,30-41,49,50,TD, PO30-41 Scottish Offshore Islands: Two Day Only £20 up to 20kgs in weight for post codes: HS1-9, IV41-56, KA27-28, KW15-17, PA20,40-49,60-78, PH42-44, ZE1-3 Northern Ireland £25 up to 10kg in weight, £1.25 per kilo thereafter Republic of Ireland £35 up to 5 kilos in weight, £2.75 per kilo thereafter Offshore British mainland please message for a quote And if you are unsure about the weight of your order please message first for a quote ## Features - Measures pH in solution for acid or alkaline conditions to make precise up and down adjustments with lab quality glass probe used for the pool, drinking water, hydroponics, brewing, and growing - EASY two point calibration and auto temperature compensation makes this digital meter a handy tool with backlit LCD display and calibration reminders - Double junction probe improves accuracy, reliability, and probe lifespan compared to regular probes, more accurate than comparable pens, test strips and other testing methods - Other features: auto off function, low battery indicator, units for temperature; KIT INCLUDES: AAA battery, lanyard, and calibration solution - Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment; 1 Year Limited Warranty with proof of purchase ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005POOJHG | | Best Sellers Rank | 30,477 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 52 in Lab pH Meters | | Brand | Bluelab | | Country Of Origin | New Zealand | | Customer Reviews | 4.3 4.3 out of 5 stars (4,581) | | Global Trade Identification Number | 09421024920234 | | Included Components | PH Pen | | Item Dimensions | 20.3 x 5.5 x 2.5 centimetres | | Item Type Name | pH Meter | | Item Weight | 122 g | | Manufacturer | Bluelab | | Manufacturer Part Number | PENPH | | Material | Glass | | Model Number | pH Pen | | Product Warranty | One year free repair or replacement guarantee | | UPC | 706842510010 715706332132 | | Unit Count | 1.0 count | ## Product Details - **Brand:** Bluelab - **Item dimensions L x W x H:** 20.3 x 5.5 x 2.5 centimetres - **Item weight:** 122 g - **Material:** Glass - **Number of items:** 1 ## Images ![Bluelab PENPH pH Pen Fully Waterproof Pocket Tester, Easy Calibration, Double Junction Probe for Improved Accuracy and Durability, White - Image 1](https://m.media-amazon.com/images/I/71NiAJy-ZqL.jpg) ## Questions & Answers **Q: Can this be calibareted for more acidic solutions, say pH 2?** A: I would have thought once the device had been calibrated at 4.0ph and 8.0ph for accuracy then it should show your readings for 2.0ph +/- whatever. If I were to stick the device into a glass of tap water it would show me the exact readings for my tap water no matter how acidic or alkaline it was. **Q: Can this be used to measure ph in salt water aquarium.** A: yes **Q: Do you get solutions with it** A: I got two diff solutions to help calibrate **Q: Can this be used as a EC Meter?** A: No ph. ## Frequently Bought Together - bluelab pH Pen - ± 0.1 pH Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made in NZ - Bluelab pH 4.0 & 7.0 Calibration Solution Kit - pH Meter & pH Pen Calibration for Balanced Nutrient Solution NIST Traceable | Hydroponics, Gardening & Growing Tents (500 ml/ 16.9 Fl Oz Each) - Bluelab STSOL120 KCL Storage Solution 120ml pH Probe and Pen, Maintain Meters Used for Water, Soil, and Hydroponic System or Indoor Plant Grow White --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/48177673-bluelab-penph-ph-pen-fully-waterproof-pocket-tester-easy-calibration](https://www.desertcart.hr/products/48177673-bluelab-penph-ph-pen-fully-waterproof-pocket-tester-easy-calibration) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-14*