{"product_id":"liquid-ph-0-14-sensor-module-with-bnc-probe-for-arduino","title":"Liquid pH 0-14 Sensor Module with BNC Probe for Arduino","description":"\u003ch1\u003eLiquid pH 0-14 Value Detection Sensor Module with pH Electrode Probe (BNC)\u003c\/h1\u003e\n\n\u003cp\u003eThe liquid pH sensor module measures pH levels from 0 to 14 using a combination electrode probe with BNC connector. It outputs an analog voltage proportional to pH, suitable for use with Arduino, ESP32, and other microcontrollers. Ideal for monitoring water quality in aquaponics, hydroponics, pools, and educational science projects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\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\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0 to 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 voltage (0-5V, inversely proportional)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1 pH at 25°C (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\u003eApprox. 42mm × 32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAquaponics pH monitoring system\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-automatic-plant-watering-system\"\u003eAutomatic plant watering based on soil pH\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-drinking-water-quality-tester-kit-with-esp32-plus-lora\"\u003eHome water quality tester with display\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eDIY pH meter for science fair projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis pH sensor module is compatible with any microcontroller that has an analog input, such as Arduino Uno, Nano, Mega, ESP8266, ESP32, and Raspberry Pi (with external ADC). It operates at 5V and provides a linear output suitable for direct analog-to-digital conversion. For best results, pair with an Arduino and use the provided sample code or popular libraries like \"DFRobot_PH\".\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the module's VCC pin to 5V, GND to ground, and the analog output (often labeled Po or A) to an analog input pin (e.g., A0). To reduce noise, place a 0.1µF capacitor between VCC and GND close to the module. The BNC probe must remain dry on the connector end; only the glass bulb should be submerged.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\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\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, it works with any Arduino board. Use an analog pin, and you can find open-source code for reading pH values.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I calibrate this sensor?\u003c\/summary\u003e\u003cp\u003eYou'll need standard buffer solutions of pH 4.0 and 9.18. Measure the analog readings for each solution, then use the values in your code to calculate pH accurately. Calibration should be done before first use and periodically.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this for continuous monitoring?\u003c\/summary\u003e\u003cp\u003eYes, but for long-term immersion, ensure the probe is designed for continuous use. Avoid leaving it in highly acidic or alkaline solutions for extended periods to extend electrode life.\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":53444952621421,"sku":"CDN-0200","price":1830.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_ec4a72d7-504c-478a-9085-d8d09287f64a.jpg?v=1781512286","url":"https:\/\/compoden.com\/products\/liquid-ph-0-14-sensor-module-with-bnc-probe-for-arduino","provider":"Compoden","version":"1.0","type":"link"}