Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Model Number | 4514-GS |
| Detection Gases | CO, NO₂, H₂, NH₃, CH₄ |
| Operating Voltage | 5V DC |
| Output Type | Analog & Digital TTL |
| Preheat Time | 24-48 Hours |
| Sensing Range | 10-1000 ppm |
| Operating Temperature | -10°C to 50°C |
| Dimensions | 32mm x 20mm x 15mm |
| Interface | 4-Pin Header |
| Sensor Type | Metal Oxide Semiconductor |
Anonymous
Apr 02, 2026
Rating: 5/5
Excellent for DIY Projects
Integrated this into my home air quality monitor. Sensitivity is impressive once calibrated.
Anonymous
Apr 01, 2026
Rating: 4/5
Solid Performance
Detects alcohol vapors strongly too. Just be aware of cross-sensitivity when deploying.
Anonymous
Mar 19, 2026
Rating: 5/5
Great for Education
Using this in a university lab for environmental sensing workshops. Students find it easy to use.
Anonymous
Mar 10, 2026
Rating: 5/5
Reliable Output
Analog voltage changes smoothly with gas concentration. Easy to read with ADC.
Anonymous
Jan 22, 2026
Rating: 4/5
Good value
Works as described. Needs long preheat time before accurate readings are possible.
Q: Can I connect this to Raspberry Pi?
A: Yes, but ensure voltage levels are compatible. Pi is 3.3V, module is 5V.
Q: How do I calibrate it?
A: Expose to fresh air for baseline, then use known concentration for span calibration.
Q: Is this certified for life safety alarms?
A: No, this is for monitoring and prototyping. Use certified alarms for personal safety.
Q: Does it come with a housing?
A: No, this is a bare PCB module. You need to design an enclosure.
Q: What is the power consumption?
A: Typically around 150mA during the heating phase.
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