I’m not sure SSRs are all that great a solution. They don’t wear out mechanically like a relay but they have a much worse problem. They tend to fail closed.

Seemingly, this ESP-01 Wi-Fi Relay can be used as a smart on/off switch for handling any device connected to it. When a pre-programmed ESP module is inserted into the relay board, it not only serves ...

What is the point of reviewing a cheap timer module, especially if it is based on the ubiquitous 555 timer chip? Recently I got an ‘updated’ version of the common 555 timer relay module. This time it ...

The Matter compatibility of the Duel Relay Module T2 requires a Matter-compatible Aqara hub (e.g., Aqara Hub M2, Hub M1S/M1S Gen 2, Hub E1 and Camera Hub G3) and may be in Beta by the time of its ...

The HR5S safety relay module is the first on the market designed specifically to meet ISO 13849 Category 2 requirements. Designed for Safety Category 2 Applications Safety relay modules, like the HR5S ...

The relay repeater module accepts single contact closure inputs from logic solver trip outputs including the company's STA Safety Trip Alarm and the SPA2 Programmable Limit Alarm Trip. With three ...