A starter kit to help you easily become familiar with security control technology. The starter kit includes the ES4P-221-DMXD1 safety programmable relay, the easy800-USB-CAB programming cable to connect the programmable relay to a PC USB port, easySoft-Safety software on CD, and electronic documentation and manual in PDF format. provides 14 safe digital inputs, 1 safe and redundant 6A relay outputs, 4 0.5A transistor outputs and 4 test signal outputs.