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IRF4905 MOSFET
1 × ₨ 103 -
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MQ3 MQ-3 Gas Sensor Module
1 × ₨ 329
Subtotal: ₨ 432
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Ultrasonic Sensor HC-SR04
- Power Supply : 5V DC
- Quiescent Current : <2mA
- Working Currnt: 15mA
- Effectual Angle: <15
- Ranging Distance : 2cm 400 cm/1x13ft
- Resolution : 0.3 cm
- Measuring Angle: 30 degree
- Trigger Input Pulse width: 10uS minimum
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- Main chip: MQ-135
- Operating Voltage: 5V DC
- Type: Analog & Digital
- Sensitivity to Ammonia, Sulphide and Benzene steam
- Detecting Range: 100-1000ppm
- With signal output instructions
- TTL output signal is low level
- Analog 0 ~ 5 v voltage output, the higher the concentration, the higher the voltage
- Color is showing pictures.
- Sensitive for benzene, alcohol, smoke
- Fast response and recovery
- Adjustable sensitivity
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- Output voltage boosts along with the concentration of the measured gases increases
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Others, Sensors
Microphone Amplifier – MAX9814 w/ Auto Gain Control
- The default ‘max gain’ is 60dB, but can be set to 40dB or 50dB by jumpering the Gain pin to VCC or ground.
- You can change the Attack/Release ratio, from the default 1:4000 to 1:2000 or 1:500.
- The ouput from the amp is about 2Vpp max on a 1.25V DC bias, so it can be easily used with any Analog/Digital converter that is up to 3.3V input. If you want to pipe it into a Line Input, just use a 1uF blocking capacitor in series.
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