PWM Signal Generator Pulse Frequency Duty Cycle Adjustable Module 3 Channel 1-150kHz 3.3-30V

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.

Motor Speed Encoder Sensor Module

• VCC Connect the positive 3.3 5 V power supply
• GND Connect power negative
• DO TTL switch signal output
• AO This module does not work

HC-SR04 Ultrasonic Sensor Holder. Designed for measuring distance using ultrasonic signals.