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PST-RQ400A Tuya Smart WiFi Natural Gas (CH4) Sensor

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Air Quality Sensor for everyday users

The PST-RQ400A Tuya Smart WiFi Natural Gas (CH4) Sensor by PST is a mid-range air quality sensor designed for everyday users. It features Item Type: Gas Sensor and Model No. / Name: RQ400A.

₹1,656
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Total: ₹1,656
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 24 Aug7 Sept
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Quick Specs

Item Type: Gas Sensor
Model No. / Name: RQ400A
Sensor Type: Natural Gas sensor
Operating Voltage (V): 85-250V AC
Power Consumption (W): <1.5
Detection Gas: Natural gas (CH4)

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-2643507Category: Air Quality Sensor

About This Product

The PST-RQ400A Tuya Smart WiFi Natural Gas (CH4) Sensor by PST is a mid-range air quality sensor designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Item Type: Gas Sensor
  • Model No. / Name: RQ400A
  • Sensor Type: Natural Gas sensor
  • Operating Voltage (V): 85-250V AC — works with standard household power
  • Power Consumption (W): <1.5
  • Detection Gas: Natural gas (CH4)
  • Operating Temperature (°C): -10 to +50
  • Length (mm): 60

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

The PST-RQ400A Tuya Smart WiFi Natural Gas (CH4) Sensor is a compact and intelligent safety device designed to detect natural gas leaks and alert users instantly. Featuring high-sensitivity sensors, it quickly identifies the presence of methane (CH4) and activates a loud alarm along with real-time push notifications via the Tuya Smart App. With built-in WiFi, it requires no additional gateway and allows for remote monitoring and control from anywhere. Compatible with Amazon Alexa and Google Home, it also supports voice control and smart automation. Its sleek design and easy installation make it ideal for use in kitchens, basements, or any area where gas leaks could occur, providing reliable protection for your home and loved ones. Note: Refer to datasheet in the ATTACHMENTS section for more info. regd. the product.

Features:

  1. Alarm Density: 6%LEL ± 3%LEL (CH4)
  2. Alarm Sound Level: 70 dB/m
  3. Support: All Tuya smart product linkage control
  4. Remote control of home appliances from anywhere via Tuya Smart App
  5. Manage multiple devices in one app with family sharing
  6. Voice control compatibility with Amazon Echo and Google Home
  7. Smart automation based on temperature, location, and time
  8. Quick and easy Tuya App connection, supports 2.4GHz WiFi (b/g/n)
  9. Compact, attractive design with plug-and-play installation
  10. Self-failure testing for reliability
  11. Detects natural gas (CH4) to prevent flammable gas hazards
  12. Operates on 85-250V AC power with energy-saving features
  13. Sensitive alarm minimizes false alerts, enhancing home security

Package Includes:

1 x PST-RQ400A Tuya Smart WiFi Natural Gas (CH4) Sensor

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.