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Moisture Tester Project

Manufacturer : Rapid
View all from this manufacturer

Kits of components to build a functional Moisture Tester that can be used to tell if pot plants require water.

The kits contain all the electronic components required, except the PCBs, which are available separately. This provides the option to buy ready-made PCBs or for students to make their own.

The moisture tester project has been designed as an introduction for Key Stage 2 & 3 students to the use of resistors and transistors in circuits.

Teachers notes are available to download here.

  • Students start by investigating the care of house plants and the problems associated with incorrect moisture content of soil
  • Downloadable information and activity sheets then guide the students through a series of exercises to build background knowledge in the use of resistors and transistors in circuits
  • For manufacture, the project allows the teacher to select from two alternative methods of circuit construction, either self adhesive copper tape onto card or on a printed circuit board (available separately) see order code 34-0635
  • Upon completion of manufacture students are then guided through an evaluation of their work
  • They also have the option of producing a 3D model using high density polystyrene foam illustrating how they might develop a final product if the design were manufactured commercially
  • Project notes are available for free download and are designed to be photocopied for class use
  • They include both detailed student and teacher notes, which contain suggested lesson plans, mapping to the National Curriculum and a series of structured homework assignments to support the work in class
  • The component kits are supplied in multiples of 5 and include:
  • All components including LEDs, battery clip, resistors and transistors
  • The project can be produced using PCB available or self adhesive copper tape (see PCB products section)
  • Suitable for Key Stages 2 & 3 (ages 7 to 14)

Each kit requires 1x PP3 battery (not included).
Teachers notes for this and other kits are available for free download at our Education Resources site.
Product details Hints & Tips






Manufacturer’s Part Number: KIT

Rapid Moisture Tester Project Components - Set of 5 (No PCBs)


In stock, despatched same day

Manufacturer’s Part Number: 2834

PCB for Moisture Tester Project (70-0030) - Pack of 5


In stock, despatched same day


Question by Marian Holland
12th May 2015

QDo you have any teacher notes/hints on the Rapid Moisture Detector Project please? I would like to attempt this project but am a one person department so would like some help. Thanks,
AHi Marian, thank you for your question. The teacher notes can be found here.


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