IR Infrared Flame Sensor Module

GY-68 BMP180 Atmospheric Pressure Module. An electronic module identified by its model and function.

Two-wire temperature sensor with a 1-metre lead. The listing mentions both PT100 and K-type; confirm the sensor type before selecting an interface.

DHT11 Humidity and Temperature Sensor Module. Designed for monitoring temperature and humidity.

4Pin LDR Module - Optical Sensitive Resistance Light Detection Sensor Module. A light-dependent resistor for light-sensing circuits.