Diablo Controls, DSP-50 Plug in, (can be used in place of the DSP-40S) vehicle detector, to handle drive through and access controls applications that are required for both "DETECT and "FAIL" outputs. this can be used either as a vehicle safety loop or free exit loop detector. This unit can be used as a "Fail Safe" or as a"Fail Secure"

Diablo Controls, DSP-7LP, Low Power "Fail-safe" vehicle detector, this detector is available with a NO and NC relay output. Perfect for gates, barrier gates, and other access control applications. Solar Friendly.