Feature: 1. Multiple combinations greatly improve the practicality and provide a better experience for beginners 2. The indicator light indicates when the heater output is turned on, which is safer and can be expanded to control other accessories 3. Complete tools, you can operate it yourself, suitable for DIY enthusiasts 4. All object are using high‑quality materials, strong and durable, has a long service life 5. Small size, easy to carry and store, convenient to use and with good performance Specification: Item Type: Sensor Module KitMaterial: PCB. Package List: 1 x 0.96 inch Screen1 x 1602 LCD Module1 x 1 Channel Relay Module1 x DHT11 Temperature Humidity Sensor1 x Ultrasonic Sensor HC-SR041 x Dot Display 8x81x Joystick Module1 x 4-Digit Digital Tube1 x TTP223B Contact Sensor1 x HC-SR501 Infrared Sensor1 Set Soil Moisture Sensor (2 Modules + 1 Wire)1 x Obstacle Avoidance Sensor1 Set SG90 9G Servo Motor (7 in total)2 x Breadboard20 x LED Lights (10Pcs Red and Green)30 x Resistance (220, 1K, 10K Each 10Pcs)1 x Jump Cable (Male to Female)