A "light relay" planned to coincide with the anniversary of Albert Einstein's death is facing opposition in the United States. A leading UK science body has already opposed the plan, but a lack of ...

Home Automation, Inc. (HAI), leading manufacturer of integrated security and home control products since 1985, is now shipping a 15A Relay Switch, Part number 40A00-1 as part of it's award-wining HLC ...

This light activated relay circuit presented here uses the 555 timer IC and a light dependent resistor or LDR to form a light sensitive relay in an intruder alarm system or for switching on a lamp at ...

The Model JSB212 2A/60W SPDT form C relay is controllable via its integrated USB port to provide host control between a common line and normally open and closed connection points. Three indicator ...

Featuring three contacts per alarm input, the SRM Safety Relay Module from Moore Industries enables alarm contacts to be integrated into safety processes without having to rely on a specialized form ...

The idea was to “unite all nations by the enlightening power of physics”. But with eight months to go, Max Lippitsch's plans have succeeded only in dividing his colleagues. Lippitsch, a physicist at ...