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HC-05 Master/Slave Bluetooth Serial Pass-Through Module | Pro Tronix
Highly versatile HC-05 Bluetooth Classic serial transceiver module. Supporting both Master and Slave operation modes, it communicates via an easy-to-use UART serial protocol, enabling seamless wireless communication between microcontrollers or straight to Android phones and laptops.
MQ-135 Air Quality and Hazardous Gas Sensor Module | Pro Tronix
Highly reliable MQ135 air quality and hazardous gas sensor module. Monitors indoor air pollution levels, detecting carbon dioxide, ammonia, benzene, and smoke via dual analog and digital outputs for responsive ventilation and smart home safety systems.
MQ-5 Methane LPG Propane Gas Sensor Module
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Buy the MQ5 LPG and natural gas sensor module online. High-sensitivity combustible gas leak detector with analog and digital outputs for Arduino.
DHT11 Temperature and Humidity Sensor Module | Pro Tronix
Highly reliable, pre-calibrated DHT11 digital temperature and humidity sensor module. Built on a convenient 3-pin PCB with an integrated pull-up resistor, this single-wire sensor tracks environmental conditions accurately, serving as a core component for smart indoor climate logging.
HC-SR04 Ultrasonic Distance Sensor Module | Pro Tronix
High-reliability HC-SR04 non-contact ultrasonic distance sensor module. Employs a dual-transducer acoustic loop to track object proximity from 2cm to 400cm with extreme precision, serving as a core component for smart obstacle avoidance, mapping rovers, and fluid tank level detection.
GY-521 MPU6050 6-Axis Accelerometer and Gyroscope Sensor Module | Pro Tronix
High-precision GY-521 breakout board embedded with the MPU6050 6-axis accelerometer and gyroscope. Features a native Digital Motion Processor (DMP) and standard I2C communication, making it an ideal choice for advanced robotics stability and self-balancing applications


