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Small rectangular plastic motion sensor module with pins visible

Ximimark 430578031 Motion Sensor 20x32x22mm

SKU CH-RX5D-QMGY0 MPN 430578031

Compact 20x32x22 mm electrochemical gas sensor detects hazardous vapours with audible and TTL outputs

  • Item nameXimimark 430578031
  • Lighting typeAudible
  • Placement and useDigital
  • Overall size20 mm × 32 mm × 22 mm
  • Item descriptionXimimark, 430578031, Electrochemical, Audible, Battery Power
  • Additional notesElectrochemical, Audible, Ximimark, 430578031, 20 L x 32 W x
  • Compact 20x32x22mm size fits tight enclosures
  • Battery powered for wire-free placement
  • Audible alarm gives instant local warning
  • Electrochemical sensor detects hazardous gases 10 to 1000ppm
  • TTL low-level output connects straight to microcontroller IO

Air Quality Detection Module

This module detects hazardous gases such as ammonia, aromatic compounds, sulfur and benzene vapor. It suits Arduino projects that monitor indoor air quality. The electrochemical sensor covers a concentration range of 10 to 1000ppm with fast response and recovery.

Wiring and Power Requirements

The board provides TTL output with a low-level valid signal and an analog voltage that rises with gas concentration. It operates on battery power and includes a power indicator light. Verify your microcontroller accepts 5 V logic before connecting the IO port.

Thermal and Operational Behaviour

The plastic enclosure measures 20 mm by 32 mm by 22 mm and weighs 0.018 kilograms. Passive operation produces no audible fan noise. Long service life and stable readings are maintained under normal digital usage conditions.

How it compares

Measured against everything we stock in Sensors, Buzzers & Control Modules, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 80% of the 89 comparable items (median $29.99).

Specifications

Product
Model name430578031
Item nameXimimark 430578031
Lighting typeAudible
Product typeMotion Sensor
Design styleContemporary
Size & build
Overall size20 mm × 32 mm × 22 mm
Main materialPlastic
Product weight0.018 kg
More details
Placement and useDigital

Questions about this item

Does the pack of three MQ-135 modules include any wiring or headers, or must I buy those separately?

The listing describes three MQ-135 sensor modules only; no cables, headers or mounting hardware are mentioned, so you will need to source jumper wires or a compatible breakout board yourself.

Should I choose the analog output or the TTL digital output for an Arduino project?

Both outputs are present on each module; the analog pin gives a voltage that rises with gas concentration while the TTL pin goes low when the threshold is crossed, letting you use either ADC reading or a simple digital interrupt.

What does the 10 to 1000 ppm detection range mean when the sensor is running on battery power in a room?

The sensor can report concentrations from 10 ppm up to 1000 ppm of gases such as ammonia, benzene vapour or sulfur compounds; the audible alarm and TTL signal will trigger once the set threshold is reached, and the 95 percent figure noted in the data suggests a high detection reliability within that range.

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