FreeETarget Version 5 is the lowest cost way to make your own Electronic Scoring System. Get the circuit and build the target holder yourself, and you can have a full featured ESS for under $300US.

The latest Version 5 hardware has an improved WiFi that allows you to use the target as a stand-alone target, or part of a larger range network.  In addition, the WiFi interface allows up to four people to look at the target: Shooter, Coach, Parent, and Spectator.

The circuit consists of:

• Integrated signal processing board with WiFi and configuration switches
• Four sensor modules
• Cable harness
• Senior covers

To make your own ESS, you need to assemble the target holder and install the circuit.  After that download the PC client and you're off to the races

For details about assembling the hardware see:

User Stories, how people around the globe have made their own ESS

Community Made Parts, components you can make yourself to complete the project

Technical Support, the details you need to finish the project