Chemical Sensors Philippines: Gas, Air Quality, pH/EC & Water Quality | Circuitrocks
Chemical Sensors at Circuitrocks — Gas, Air & Water Quality Monitoring
Build reliable environmental monitors with chemical sensors for gases (CO, LPG, smoke, alcohol), air quality (VOC/CO₂/PM), and water chemistry (pH, EC/TDS, ORP, DO, salinity). Compatible with Arduino, ESP32, and Raspberry Pi.
Gas (MQ series) • VOC/CO₂/PM • pH/EC/ORP/DO • TDS & Ammonia • I²C/UART/Analog
Why choose these sensors
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Wide coverage from hobby gas detectors to lab-grade water probes
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Easy integration via I²C/UART/analog with rich libraries
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Scalable for classrooms, farms, aquaculture, and industry pilots
What you can build
- Indoor air-quality dashboards (CO₂/VOC/PM)
- Hydroponics & aquarium controllers (pH, EC, DO)
- Gas leak/smoke/alcohol alerts (MQ series)
Featured categories
Tip: Calibrate regularly. Water probes often require temperature compensation; use an RTD/thermistor input when available.
FAQ
Are these compatible with Arduino/ESP32/Raspberry Pi?
Yes. Most modules expose I²C, UART, or analog outputs with available libraries/examples.
Do gas sensors need burn-in or calibration?
Yes—MQ sensors typically need minutes to hours of burn-in and periodic calibration. Follow each product’s datasheet.
How do I maintain pH/EC/DO probes?
Use proper storage solutions, rinse (don’t wipe) pH glass, and re-calibrate with fresh standards. Add temperature compensation where supported.
Do you ship nationwide?
Yes—fast shipping anywhere in the Philippines. Same-day processing on in-stock orders before cutoff.
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