Skip to content
SHOP LEARN BLOG FORUM
login cart[0]
Free shipping above ₱2,000 · Manila same-day cutoff 4PM · School / class POs welcome →
circuitrocks
  • Arduino
    • All Arduino
    • UNO R3 / R4
    • Mega 2560
    • MKR / Nano
    • Shields
    • Starter kits
  • Raspberry Pi
    • All Raspberry Pi
    • Pi 5
    • Pi 4
    • Pi Zero 2 W
    • Pico (RP2040)
    • HATs
    • Cases & cooling
  • ESP32
    • All ESP32
    • ESP32-S3
    • ESP32-C3
    • DevKits
    • Wroom modules
    • Cameras
  • Sensors
    • All sensors
    • Temp & humidity
    • IMU & motion
    • Distance
    • Light & color
    • Air & gas
  • Breakouts
  • Displays
  • LED Strips
  • Audio
  • Motors & Drivers
  • Power
  • Batteries
  • Cables
  • Tools
  • Kits
    • All kits
    • Beginner
    • STEM
    • Project
    • Classroom
  • 3D Printing
  • Drones
  • On Sale
    • All sale items
    • Flash deals
    • Clearance
    • Bundle savings
    • Last chance
  • Brands
    • Adafruit
    • DFRobot
    • Pimoroni
    • Seeed Studio
    • SparkFun
    • Elegoo
    • Keyestudio
    • Pololu
    • Waveshare
    • All brands
Log in Cart

Item added to your cart

View cart
shop / search

search results42 matches

// query: ammonia NH3 sensor clear
Gas Sensor MQ135 - circuitrocks 12 stock
SKU: 2430

MQ-135 Air Quality Gas Sensor - Analog Module

₱ 165.00
Gas Sensor MQ-131 Ozone Module 33 stock
SKU: AM315

Gas Sensor MQ-131 Ozone Module

₱ 1,085.00
Hydrogen Gas Analog Sensor MQ8 For Arduino Gravity - circuitrocks 5 left
SKU: SEN0133

DFRobot MQ-8 Hydrogen Gas Sensor Gravity - SEN0133

₱ 547.00
Gas Analog Smoke LPG CO Sensor MQ2 - circuitrocks 47 stock
SKU: AB072

MQ-2 Gas Sensor - Smoke/LPG/CO Analog Module

₱ 55.00
Gas Analog CH4 Gas Sensor MQ4 For Arduino - circuitrocks 58 stock
SKU: AB077

MQ-4 Methane (CH4) Gas Sensor - Analog Module

₱ 99.00
MQ-5 LPG/Natural Gas Sensor Analog (AB075) 200+ stock
SKU: AB075

MQ-5 LPG/Natural Gas Sensor - Analog Module

₱ 75.00
DFRobot Dissolved Oxygen Analog Meter Kit - SEN0237-A 2 left
SKU: SEN0237-A

DFRobot Dissolved Oxygen Analog Meter Kit - SEN0237-A

₱ 21,294.00
Carbon Monoxide Analog Sensor MQ7 For Arduino - circuitrocks 200+ stock
SKU: AB074

MQ-7 Carbon Monoxide Gas Sensor - Analog Module

₱ 105.00
DFRobot Air Quality Monitor PM2.5+HCHO+T+H - SEN0233 1 left
SKU: SEN0233

DFRobot Air Quality Monitor PM2.5+HCHO+T+H - SEN0233

₱ 5,725.00
DFRobot Gravity MQ9 CO/Combustible Gas Sensor - SEN0134 2 left
SKU: SEN0134

DFRobot Gravity MQ9 CO/Combustible Gas Sensor - SEN0134

₱ 439.00
Particulate Matter Sensor Breakout 1 left
SKU: PIM477

Pimoroni Particulate Matter Sensor Breakout

₱ 338.00
pH Meter Pro Analog Sensor - circuitrocks 5 left
SKU: SEN0169

DFRobot pH Meter Pro Analog Sensor - SEN0169

₱ 5,975.00
pH Meter Sensor Analog Kit (Arduino Compatible) - circuitrocks 10 stock
SKU: SEN0161

DFRobot pH Meter Sensor Analog Kit - SEN0161

₱ 3,098.00
Gas Sensor MQ6 LPG (AJ369-6) 28 stock
SKU: AJ369-6

Gas Sensor MQ6 LPG - Butane/Propane Detector

₱ 39.00
pH Sensor Meter Analog Kit V2 Gravity for Arduino - DFRobot SEN0161-V2 image 1 2 left
SKU: SEN0161-V2

DFRobot Gravity Analog pH Sensor Kit V2 for Arduino

₱ 4,977.00
Gas Sensor MQ6 Analog Propane For Arduino - circuitrocks 1 left
SKU: SEN0131

DFRobot MQ-6 Propane/LPG Gas Sensor - SEN0131

₱ 377.00
Atlas Scientific Surveyor Analog pH Meter (SRV-pH) 1 left
SKU: SRV-pH

Atlas Scientific Surveyor Analog pH Sensor/Meter Board

₱ 2,258.48
DFRobot pH Sensor Spear-Tip Analog Kit - SEN0249 1 left
SKU: SEN0249

DFRobot pH Sensor Spear-Tip Analog Kit - SEN0249

₱ 10,470.00
Atlas Scientific EZO-CO2 Research Grade Sensor (EZO-CO2) 1 left
SKU: EZO-CO2

Atlas Scientific EZO-CO2 Research Grade CO2 Sensor

₱ 22,592.85
Dissolved Oxygen Kit Analog Atlas Scientific Gravity - circuitrocks 1 left
SKU: kit-103

Atlas Scientific Dissolved Oxygen Kit - Complete DO Sensor Kit

₱ 17,499.00
Adafruit BME680 Temperature/Humidity/Pressure/Gas Sensor - STEMMA QT 1 left
SKU: 3660

Adafruit BME680 Temperature/Humidity/Pressure/Gas Sensor - STEMMA QT

₱ 1,598.00
Atlas Scientific Lab Grade pH Probe - BNC, Replaceable Reference 2 left
SKU: ENV-40-pH

Atlas Scientific Lab Grade pH Probe - BNC, Replaceable Reference

₱ 5,985.00
Atlas Scientific EZO pH Measurement Circuit - Digital pH 1 left
SKU: EZO-pH

Atlas Scientific EZO pH Measurement Circuit - Digital pH

₱ 4,156.35
Atlas Scientific EZO pH Circuit 1 left
SKU: EZO-pH

Atlas Scientific EZO pH Circuit

₱ 2,200.00
showing 1–24 of 42
12next ›

circuit.rocks

Sensors, dev boards, and kits for Filipino makers since 2015. Manila / ships same-day weekdays.

shop

  • all parts
  • categories
  • kits
  • sale

help

  • how to order
  • shipping
  • returns
  • contact

learn

  • tutorials
  • blog
  • forum
  • discord

brand

  • about
  • meet chip
  • github
  • live
// © 2026 circuitrocks. all rights reserved.
  • Choosing a selection results in a full page refresh.
  • Opens in a new window.