Smart Relay 4 – Smart GPIO Converter

The Smart Relay 4 is a perfect tool for converting sustained network contact closures to pulses or applying logic/timing functions. The Smart Relay 4 provides four independent DPDT relay outputs and eight optically isolated wet or dry inputs. User programmable logic and pulse stretching (delays) may be set from 50 ms to 99 hours, 59 minute and 59.99 seconds.