Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup. Green circuit board with relay and components.
Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup, top view with detailed wiring layout.
Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup - close-up view of circuit board components.
Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup circuit board with relay and components.
Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup circuit board with relay and components.
Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup circuit board with components and relay.
Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup - close-up view of sensor module
Close-up view of MQ2 smoke sensor mesh on circuit board, part of Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup.
Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup, green circuit board with sensor.

Top Shelf MQ2 Smoke Detector Module With Loud Buzzer Alert And Proven Relay Switch, Reverse Connection Guard For Kitchens And Hotels, No Sweat Plug And Play DC Setup

$55.95 $140.00you save $84.05
SKU: VXB0H1GNMYPR
Product ID: 1215-3720
UPC:





MQ2 Smoke Sensor Module With Relay And Alarm
✔️ DC relay switch with loud buzzer and reverse polarity guard

You receive one ready-to-use smoke detector module. It works great in kitchens, hotels, or warehouse settings. The plug-and-play DC layout makes wiring simple. You get steady alarm signals when fumes beat your preset limit. The threshold dial gives you exact control over sensitivity.

✅ Adjusts smoke density sensitivity to match your room properly
✅ Fires a loud buzzer and bright LED above your cutoff point
✅ Closes a reliable relay to run external sirens or exhaust fans
✅ Guards against backwards wiring thanks to built-in reverse protection

💡 What do engineers recommend when scaling up smoke sensing for DIY projects
You will find this alarm module handy for custom fire rigs that pair smoothly with microcontrollers. Try these top features for your build
- Sensitivity knob sets exact smoke concentration triggers for your space
- Relay terminal links the chip directly to standalone warning bells
- Backwards power shield saves the board from fried circuits
- Stable voltage output gives your code clean data readings daily.

✝️
Share
Facebook X (Twitter) Pinterest