Well the PIDS were about $30 each 24volt LEDS about $3-5 each. Temp probes about $45 each. The switches were about $5 each. Transformer/Wire/relays. YmmvAbout how much does it cost to build a semi-simple brutus control panel like this build? I know it can be customized to a specific system which will change the price but I am just looking for a ball park.