Ronan’s relay logic based annunciator systems are preferred in applications where extreme environmental conditions are encountered. The combination of proven reliability, noise immunity and simplicity of the logic circuits makes the relay systems ideally suited for oil platforms, desert or arctic environments, shipboard or any place with limited access to technical support.

✔︎ Normally open/normally closed field contact select-ability

✔︎ Auxiliary contact outputs

✔︎ Lock/non-lock select-ability

✔︎ Available in all major ISA 18.1 sequences in addition to custom sequences

✔︎ Over 30 years of field-proven stability and quality

✔︎ CSA Approved