Sensors

Sensors Philippines: Distance, Motion, Environmental, Chemical, Flow & More | Circuitrocks

Sensors at Circuitrocks — Measure the World with Arduino, ESP32 & Raspberry Pi

Build reliable projects with our curated sensors—from distance and motion to environmental, chemical/water quality, current/voltage, and flow/level. Classroom-friendly, lab-tested, and maker-ready.

Distance • Motion/IMU • Temp/Humidity • Air Quality • Chemical • Flow/Level • Current/Voltage

Why shop sensors here

  • Wide coverage: hobby to lab-grade probes
  • Easy integration: I²C/SPI/UART/analog with libraries
  • PH support: quick local advice and replacements

Popular builds

  • Line-following & obstacle-avoid robots
  • Weather stations & IAQ dashboards
  • Hydroponics/aquarium controllers (pH/EC/DO)
  • Energy, water-flow, and tank-level monitoring

Recommended add-ons

Featured sensor categories

Environmental & Air Quality

Water, Power & Process

Tip: For noisy or long-cable installs, prefer I²C/UART digital sensors or use signal isolation modules for analog probes.

Sensor chooser (quick guide)

Need Good first choice Notes
Object distance Ultrasonic HC-SR04 or ToF VL53L0X ToF is compact and better at short ranges; ultrasonic is budget-friendly.
Temp/Humidity/Pressure BME280 / SHT31 I²C, stable libraries; great for weather and logging.
Air quality CO₂ (NDIR) + VOC + PM2.5 Combine for a complete IAQ score; ensure airflow and filters.
Water chemistry Atlas Scientific pH/EC/DO Use proper storage/calibration solutions; consider temp compensation.
Flow & level Hall-effect flow meter + pressure/ultrasonic level Mind pipe size (G1/2, 3/4) and minimum flow for accurate readings.
Motion/orientation IMU MPU-6050/LSM6 family Good for balancing bots, logging, gestures; sample at steady rates.
Current/voltage INA219/INA226 or ACS series High-side digital measurement; isolate if monitoring mains.

Values and picks are common starting points; check each product page for exact specs and wiring.

Starter bundles

FAQ

Are these sensors compatible with Arduino/ESP32/Raspberry Pi?

Yes. Most expose I²C, SPI, UART, or analog outputs with ready-made libraries and examples.

Do gas and chemical sensors need calibration?

Yes—MQ sensors require burn-in; water probes (pH/EC/DO) need regular calibration and proper storage solutions.

How do I avoid noisy readings?

Use stable power, short signal runs, shielding/grounding, and consider digital sensors or isolation for long cables.

Do you ship nationwide?

Yes—fast shipping anywhere in the Philippines. Same-day processing on in-stock orders before cutoff.

Explore related: Chemical Sensors • Pressure Sensors • Displays • Power & Isolation • Enclosures • Cables

Read More
Sensors Philippines: Distance, Motion, Environmental, Chemical, Flow & More | Circuitrocks

Sensors at Circuitrocks — Measure the World with Arduino, ESP32 & Raspberry Pi

Build reliable projects with our curated sensors—from distance and motion to environmental, chemical/water quality, current/voltage, and flow/level. Classroom-friendly, lab-tested, and maker-ready.

Distance • Motion/IMU • Temp/Humidity • Air Quality • Chemical • Flow/Level • Current/Voltage

Why shop sensors here

  • Wide coverage: hobby to lab-grade probes
  • Easy integration: I²C/SPI/UART/analog with libraries
  • PH support: quick local advice and replacements

Popular builds

  • Line-following & obstacle-avoid robots
  • Weather stations & IAQ dashboards
  • Hydroponics/aquarium controllers (pH/EC/DO)
  • Energy, water-flow, and tank-level monitoring

Recommended add-ons

Featured sensor categories

Environmental & Air Quality

Water, Power & Process

Tip: For noisy or long-cable installs, prefer I²C/UART digital sensors or use signal isolation modules for analog probes.

Sensor chooser (quick guide)

Need Good first choice Notes
Object distance Ultrasonic HC-SR04 or ToF VL53L0X ToF is compact and better at short ranges; ultrasonic is budget-friendly.
Temp/Humidity/Pressure BME280 / SHT31 I²C, stable libraries; great for weather and logging.
Air quality CO₂ (NDIR) + VOC + PM2.5 Combine for a complete IAQ score; ensure airflow and filters.
Water chemistry Atlas Scientific pH/EC/DO Use proper storage/calibration solutions; consider temp compensation.
Flow & level Hall-effect flow meter + pressure/ultrasonic level Mind pipe size (G1/2, 3/4) and minimum flow for accurate readings.
Motion/orientation IMU MPU-6050/LSM6 family Good for balancing bots, logging, gestures; sample at steady rates.
Current/voltage INA219/INA226 or ACS series High-side digital measurement; isolate if monitoring mains.

Values and picks are common starting points; check each product page for exact specs and wiring.

Starter bundles

FAQ

Are these sensors compatible with Arduino/ESP32/Raspberry Pi?

Yes. Most expose I²C, SPI, UART, or analog outputs with ready-made libraries and examples.

Do gas and chemical sensors need calibration?

Yes—MQ sensors require burn-in; water probes (pH/EC/DO) need regular calibration and proper storage solutions.

How do I avoid noisy readings?

Use stable power, short signal runs, shielding/grounding, and consider digital sensors or isolation for long cables.

Do you ship nationwide?

Yes—fast shipping anywhere in the Philippines. Same-day processing on in-stock orders before cutoff.

Explore related: Chemical Sensors • Pressure Sensors • Displays • Power & Isolation • Enclosures • Cables

Read Less