Carbon monoxide detector with alarm - orno

The Sensor of Image Charmed Labs Pixy 2 CMUcam5 is smaller, faster and more capable than the original Pixy. Like its predecessor, Pixy2 can learn to detect objects, just by pressing a button. In addition, Pixy2 has new algorithms that detect and track lines for use with line following robots. The new algorithms can also detect intersections and "traffic signs". Traffic signs can tell your robot what to do, such as turning left, turning right, slowing down, etc.

Pololu Carrier for MQ Gas Sensors Bare PCB Only

Analog Hydrogen Gas Sensor MQ8

Grove - Air quality sensor V1.3

Pixy CMUcam5 Image Sensor

This semiconductor gas sensor detects the presence of combustible gas and smoke at concentrations from 300 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.

This small digital distance sensor detects objects between 2 cm and 10 cm apart. With its fast response time, small size and low current consumption , this sensor is a good choice for detecting non-contact objects in compact PCBs facilitating integration into your project.

Monitor the consumption of any appliance, electrical circuit or office equipment (lighting, sockets, security systems, heaters, air conditioning, etc.) individually with this compact device that works via Wifi so you can monitor everything through your smartphone.

The CNY70 has a compact construction where the emitter and receiver are arranged in the same direction to detect the presence of an object using the object's reflective IR beam.

This UV Sensor is capable of detecting UV solar radiation using a simple UVM-30A chip. It can be easily configured for projects with Arduino to monitor UV Index, analyze UV-A lamps or DIY projects as plant growth analysis.

The 5-Channel Infrared Detector Sensor Module is designed to optimize robotics and electronics projects.