Red Laser Receiver Sensor Module
With this indoor laser sensor module you can detect laser signals in order to send digital signals via the laser.
Specifications:
- Input voltage: 5V DC
- Binary output signal (0 or 5V)
- Can be used in combination with a red laser
- Only suitable for indoor use.
Air quality sensor gas sensor MQ-135
مفتاح سويتش يعمل باللمسTouch Switch Module 










