--- product_id: 325748308 title: "Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory" brand: "gain express" price: "419.90 DT" currency: TND in_stock: true reviews_count: 13 category: "Gain Express" url: https://www.desertcart.tn/products/325748308-digital-combo-ph-and-temperature-meter-aquarium-thermometer-ph-monitor store_origin: TN region: Tunisia --- # 3-point auto calibration 3-month battery life with power saving ±0.1°C resolution temp sensor Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory **Brand:** gain express **Price:** 419.90 DT **Availability:** ✅ In Stock ## Summary > 🌊 Stay ahead of the curve with precision pH & temp monitoring—because your aquatic ecosystem deserves the best! ## Quick Answers - **What is this?** Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory by gain express - **How much does it cost?** 419.90 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/325748308-digital-combo-ph-and-temperature-meter-aquarium-thermometer-ph-monitor) ## Best For - gain express enthusiasts ## Why This Product - Trusted gain express brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Power:** Efficient power-saving mode extends battery life up to 3 months on 4 AA batteries—less hassle, more monitoring. - • **Versatile & Reliable:** Separate probe design for quick, reusable measurements ideal for aquariums, hydroponics, and labs. - • **Smart Screen Visibility:** Large backlit LCD display guarantees clear readings even in dim or underwater environments. - • **Precision at Your Fingertips:** Advanced 3-point automatic calibration ensures lab-grade pH accuracy every time. - • **Temperature-Compensated Readings:** Automatic Temperature Compensation (ATC) eliminates errors caused by water temperature fluctuations. ## Overview The Digital Combo pH & Temperature Meter by Gain Express offers highly accurate, automatic 3-point pH calibration and temperature compensation, displayed on a large backlit LCD. Powered by 4 AA batteries with a 3-month lifespan and equipped with a separate probe, it’s perfect for professionals managing aquariums, hydroponics, or lab environments seeking reliable, easy-to-read, and consistent water quality data. ## Description Product Description Review: Accurate reading. - When I first started using the meter every time I took a reading I had to calibrate the probes each time I used it, now I keep the probe in the aquarium on a permanent basis it saves a small fortune on buying calibration powder and distilled water, also gives a more accurate reading than the coloured chart type of tests. Review: Easy to calibrate. Reliably consistent - The first unit I purchased had a faulty probe which was disappointing but worked perfectly with a new probe. I have since bought two more units and all three are installed in different locations. All perform very well. The device calibrates easily. Response time is good. The display is easy to read and can be backlit. The device is compact and easily installed. I would recommend this device for its design, performance and price. ## Features - FEATURES: Large screen monitor with smart backlight which allows you to read easily even in dark sorroundings. pH and Temperature display with low battery indicator and the unit operates power saving mode. - Multi-points Calibration: Up to 3 Points PH calibration (pH 7.0 / pH 4.01 / pH 10.01). It has advance one touch calibration function with automatic buffer recognition to avoid errors. - ATC (Automatic Temperature Compensation): The monitor has ATC function so it will decrease the error of PH readings caused by the fluctuation of water temperature. - HIGHLY ACCURATE MEASUREMENT: It has separate probe. When taking a measurement, simply place your probes into the solution and and then the accurate readings will be displayed on screen. - POWER SOURCE: The monitor is operated with 4 x AA Alkaline Battery. It will go into power saving mode after around 5 minutes. In this way, it can provide battery life time for at least 3 months. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08RYJ48X8 | | Age Range Description | Adult | | Age range (description) | Adult | | Battery Life | 3 months | | Best Sellers Rank | 49,052 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 69 in Lab pH Meters | | Brand | GAIN EXPRESS | | Colour | pH&Temp Monitor(Upgraded) | | Country Of Origin | China | | Customer Reviews | 4.0 out of 5 stars 764 Reviews | | Display Type | LCD | | Included Components | Battery | | Included components | Battery | | Indoor Outdoor Usage | Indoor | | Item Length | 9 Centimetres | | Manufacturer | Gain Express Holdings Ltd | | Manufacturer Part Number | PHM-295 | | Model Name | PHM-295 | | Model Number | PHM-295 | | Number of Batteries | 4 AA batteries required. | | Outer Material | Plastic | | Outer material | Plastic | | Power Source | Battery Powered | | Product Care Instructions | Wipe Clean | | Resolution | 0.1 degree celsius | | Response Time | 5 minutes | | Reusability | Reusable | | Special Features | High Accuracy, Low Battery Indicator | | Special feature | High Accuracy, Low Battery Indicator | | Specification Met | View Manual | | Style Name | Contemporary | | UPC | 600316551403 713072686217 | | Unit Count | 1.0 count | | Upper Temperature Rating | 60 Degrees Celsius | ## Product Details - **Brand:** GAIN EXPRESS - **Manufacturer:** Gain Express Holdings Ltd - **UPC:** 600316551403 713072686217 ## Images ![Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory - Image 1](https://m.media-amazon.com/images/I/61OwPb6zhYL.jpg) ![Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory - Image 2](https://m.media-amazon.com/images/I/71xo3djgubL.jpg) ![Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory - Image 3](https://m.media-amazon.com/images/I/71Q4914EVeL.jpg) ![Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory - Image 4](https://m.media-amazon.com/images/I/61BKIFiftCL.jpg) ![Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory - Image 5](https://m.media-amazon.com/images/I/61w6AACELuL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Accurate reading. *by W***N on 14 November 2023* When I first started using the meter every time I took a reading I had to calibrate the probes each time I used it, now I keep the probe in the aquarium on a permanent basis it saves a small fortune on buying calibration powder and distilled water, also gives a more accurate reading than the coloured chart type of tests. ### ⭐⭐⭐⭐ Easy to calibrate. Reliably consistent *by J***N on 19 October 2024* The first unit I purchased had a faulty probe which was disappointing but worked perfectly with a new probe. I have since bought two more units and all three are installed in different locations. All perform very well. The device calibrates easily. Response time is good. The display is easy to read and can be backlit. The device is compact and easily installed. I would recommend this device for its design, performance and price. ### ⭐⭐⭐⭐⭐ Working pH probe *by L***O on 19 February 2025* Product came in a sealed box with a working pH probe ## Frequently Bought Together - Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory - General Hydroponics pH Control Kit For A Balanced Nutrient Solution --- ## 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.tn/products/325748308-digital-combo-ph-and-temperature-meter-aquarium-thermometer-ph-monitor](https://www.desertcart.tn/products/325748308-digital-combo-ph-and-temperature-meter-aquarium-thermometer-ph-monitor) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-20*