[Debraj Deb] put together a current monitoring device that interfaces with the circuit box at his house. The system is controlled by a PIC 18F4520 and uses an LM358 Op-Amp to rectify the AC signal ...

SmartAC.com, a local tech startup, emerged Tuesday from stealth mode with $10 million in venture funding and a product that’s very Houston: It monitors the health of home AC systems, alerting ...

The Motion Wi-Fi Sensing Plugs use interference to detect motion, allowing remote caregivers to monitor ... you to turn a device plugged into it on or off. They have passthrough AC outlets ...

The devices monitor resistive or inductive loads to detect current usage on large machines using ac current up to 2,000 A. With a compact 35-mm DIN-rail mount enclosure, the Series installs over ...