Features :
- Sensitivity to Ammonia, Sulphide, and Benzene steam
- With signal output instructions
- The TTL output signal is a 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
- Signal output indicator
- Output voltage boosts along with the concentration of the measured gases increases.
Package Includes :
1 x MQ 135 Air Quality Sensor Module.
Holder for Ultrasonic HC-SR04 Sensor Module
Amped Heart Beat Pulse Sensor
Digital Servo Motor & ESC Tester
3 Wire Voltmeter 0.36 Inch 4.5V-30V DC Digital Voltmeter Module Board
L298N Based Dual DC Motor Driver Module with PWM Control 






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