10 Pack Water Level Sensors DC3V 5V for Arduino Analog Water Depth Sensing Tool

Light Sensor Module - Arduino Module - 3 Pin - Free P&P

2x TTP223 Mini Capacitive Touch Switch Button Self-lock/No-lock Module Arduino

3 pin Optical Sensitive Resistance Light Detection Module for Arduino DIY Kit

Temperature Module - DS18B20 - 3 Pin Arduino Module - Free P&P

Magnetic Switch Module - Reed Switch - 3 Pin Arduino Module - Free P&P

Thermister Temperature Sensor - Digital Out MF52 3 Pin Arduino Module - Free P&P

10pcs Analog Pressure Sensor 3.3V 5V Supply 0-40KPa for Water and Air Sensing