K1005 Moisture Indicator

K1005 Moisture Indicator Kit – Soil Sensor Electronics Project (Assembly Required)

The K1005 Moisture Indicator Kit is a beginner-friendly soldering project that demonstrates how electronic circuits respond to environmental conditions. Using simple components and a transistor switch, the circuit detects moisture and activates an LED, making it an engaging way to learn about conductivity and sensing.

Key Features

• Moisture detection using simple probe sensor
• Demonstrates transistor switching behaviour
• Beginner-friendly PCB with clear labels and large pads
• LED indicator for visual feedback
• Hands-on soldering and electronics learning

What’s Included

• 1 × K1005 PCB
• Electronic components (transistor, resistors, LED, etc.)
• Moisture sensor probe connections
Note: Requires 2 × AA batteries (not included). Assembly required.

Curriculum Links

Australian Curriculum (v9.0):
• ACTDEK042 – Investigate how systems are designed and controlled
• ACTDEP050 – Produce designed solutions
Victorian Curriculum:
• VCDSTS039 – Technologies systems
• VCDSCD041 – Producing designed solutions
NSW (Stage 4–5 Technology Mandatory):
• TE4-2DP – Designs and produces solutions
• TE4-3DP – Safe use of materials and components

Classroom Use / Learning Outcomes

Students will:
• Understand how conductivity changes with moisture
• Learn how a transistor operates as a switch
• Build and test a sensor-based circuit
• Explore environmental sensing applications

Teacher Benefits

• Ideal introduction to soldering and electronics
• Clear cause-and-effect demonstration
• Simple circuit with strong learning outcomes
• Engaging real-world application (soil moisture detection)

Perfect For

• Beginner soldering projects
• Sensor and environmental monitoring lessons
• Electronics fundamentals
• Lie detector
• STEM and classroom learning