Guide to air purifiers under ₹30,000 for India. HEPA units, room size, and CADR are simple. Air is very poor nationwide, ...

Consumer groups have warned that while smart meters can save hundreds of dollars, some people had been forced on to time-of-use energy plans which had actually increased their bills.

The basic controls of smart light switches involve an on and off function. Additional desirable options may include the ...

LoRa Mesh solutions like Meshtastic or MeshCore enable off-grid messaging, GPS coordinates, and in some cases, audio communication for emergencies, ...