{"product_id":"ph-0-14-liquid-sensor-module-with-bnc-electrode-probe","title":"pH 0-14 Liquid Sensor Module with BNC Electrode Probe","description":"\u003ch1\u003eLiquid pH 0-14 Value Detection Sensor Module with pH Electrode Probe (BNC)\u003c\/h1\u003e\u003cp\u003eThe Liquid pH 0-14 Detection Sensor Module with BNC pH Electrode Probe is a reliable analog sensor for measuring acidity or alkalinity in aqueous solutions. It outputs a voltage proportional to the pH value, making it suitable for continuous monitoring in aquariums, hydroponic systems, water quality testing, and laboratory experiments. The included high-quality BNC probe ensures stable and accurate readings, ideal for educational projects and industrial prototypes.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Range\u003c\/td\u003e\n\u003ctd\u003e0-14 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eAnalog 0-5V (proportional to pH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1 pH (after calibration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Connector\u003c\/td\u003e\n\u003ctd\u003eBNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Dimensions\u003c\/td\u003e\n\u003ctd\u003e42mm x 32mm x 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/aquarium-water-quality-monitor-kit-with-arduino-tds-and-temp\"\u003eAquarium water pH monitor with real-time display\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eHydroponic nutrient solution pH controller\u003c\/li\u003e\n\u003cli\u003eAutomated pool chemical dosing system\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-drinking-water-quality-tester-kit-with-esp32-plus-lora\"\u003ePortable water quality tester for field use\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis sensor module works with any microcontroller that has an analog input and can supply 5V, such as Arduino Uno, Mega, ESP32, and NodeMCU. It directly connects to a 5V ADC pin; for 3.3V systems like Teensy or Raspberry Pi Pico, use a voltage divider or ensure 5V tolerance. Raspberry Pi boards require an external ADC (e.g., ADS1115) as they lack analog pins.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eConnect VCC to 5V, GND to ground, and the OUT pin to an analog input. Before first use, calibrate with pH 4.0 and 9.0 buffer solutions for accurate readings. Avoid submerging the module; only the probe tip should contact liquid.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, the analog output connects directly to an Arduino analog pin (A0-A5). Power the module with 5V, and use the standard analogRead() function to get pH-proportional values.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow often should I calibrate the probe?\u003c\/summary\u003e\u003cp\u003eCalibrate before first use and every month of active use. Frequent calibration (weekly) is recommended for critical applications or if accuracy drifts due to probe aging or contamination.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the module work with 3.3V microcontrollers?\u003c\/summary\u003e\u003cp\u003eThe module operates at 5V and outputs up to 5V. Some 3.3V boards have 5V-tolerant ADCs; otherwise, use a voltage divider (e.g., two 10kΩ resistors) to scale the output safely.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444989682029,"sku":"CDN-0576","price":1830.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_fe608000-5439-4369-9d2c-d18c51f44449.jpg?v=1781512685","url":"https:\/\/compoden.com\/products\/ph-0-14-liquid-sensor-module-with-bnc-electrode-probe","provider":"Compoden","version":"1.0","type":"link"}