605-00009 Parallax Undefined or Miscellaneous (Other) In Stock
Parallax 605-00009 is an LPG gas sensor module designed to detect liquefied petroleum gas concentrations for air quality and safety monitoring applications. Features analog output proportional to gas concentration with detection range typically from 200 ppm to 10,000 ppm LPG. Available from Parallax and authorized distributors with worldwide shipping.
- Manufacturer
- Parallax
- Package
- Other
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 605-00009 Datasheet PDF
- Category
- Undefined or Miscellaneous
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- LPG gas detection range of 200 ppm to 10,000 ppm with analog voltage output proportional to gas concentration for easy microcontroller interfacing
- Low power consumption with 5 V supply compatibility, enabling direct connection to Arduino, Raspberry Pi, and other 5 V development platforms without additional level shifting
- Fast response time under 10 seconds enables timely safety alerts in residential and industrial LPG leak detection systems
Applications
The Parallax 605-00009 LPG gas sensor is used in home safety systems, industrial leak detection equipment, and prototype gas monitoring devices where detection of liquefied petroleum gas (propane/butane) concentrations between 200 ppm and 10,000 ppm is required. Its analog output interface allows direct connection to microcontroller ADC inputs for real-time gas concentration monitoring in smart home systems and educational robotics projects. The module is well-suited for Parallax BASIC Stamp, Arduino, and similar 5 V development platforms used in IoT and maker applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gas concentration range can the Parallax 605-00009 LPG sensor reliably detect?
The Parallax 605-00009 LPG gas sensor is designed to detect liquefied petroleum gas (LPG, propane/butane mixtures) across a concentration range of approximately 200 ppm to 10,000 ppm. This range covers both early leak detection below the lower explosive limit (LEL of about 1.8% or 18,000 ppm for propane) and provides adequate resolution for safety alarm triggering at 10–25% LEL thresholds required by residential codes.
How does the analog output of 605-00009 interface with a microcontroller ADC in a safety monitoring project?
The 605-00009 provides an analog voltage output that scales proportionally with LPG concentration, typically between 0 V and 5 V over the sensor's detection range. Connecting this output to a 10-bit ADC (such as those on an Arduino Uno) provides 1024 discrete steps across the 0–5 V range, yielding approximately 10 ppm to 20 ppm resolution depending on calibration, sufficient for safety thresholds between 500 ppm and 2,000 ppm.
What supply voltage and current does the 605-00009 sensor module require for operation in a battery-powered safety device?
The Parallax 605-00009 operates from a 5 V supply, with the onboard MQ-series gas sensor element drawing approximately 150 mA to 300 mA during warm-up and steady-state operation. This current draw means a 2,000 mAh LiPo battery can sustain the sensor for approximately 7 to 13 hours of continuous operation, so battery-powered applications should plan for periodic power cycling or use a low-power standby mode to extend runtime.
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