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Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane, propane, methane, smoke, etc.
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Module Features:
| using high-quality dual-panel design, with power indicator and TTL signal output instructions. |
| the switching signal having a DO (TTL) output and analog output AO. |
| TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module ). |
| analog output voltage with the higher concentration of higher voltage. |
| a gas, natural gas, city gas, smoke better sensitivity. |
| there are four screw holes for easy positioning. |
| 7 Product dimensions: 32 (L) * 20 (W) * 22 (H). |
| has a long life and reliable stability. |
| rapid response and recovery characteristics. |
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Electrical properties:
| Input voltage: DC5V Power consumption ( current ): 150mA. |
| DO output: TTL digital 0 and 1 ( 0.1 and 5V). |
| AO output: 0.1-0 .3 V ( relative to pollution ), the maximum concentration of a voltage of about 4V. |
| Special note: After the sensor is powered, needs to warm up around 20S, measured data was stable, heat sensor is a normal phenomenon, because the internal heating wire, if hot is not normal. |
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Wiring:
| VCC: positive power supply (5V). |
| GND: power supply is negative. |
| DO: TTL switching signal output. |
| AO: analog signal output. |
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