Tecmark's LectricAir¬ technology uses air to switch electricity on and off... safely isolating the user from the electrical current. Safe, versatile and easy to use, LectricAir® works with many different appliances, such as TVs, lights, computers, stereos, garbage disposers, drill presses, scroll saws and much more. Both for home and workshop, LectricAir® instantly converts any standard 120 volt grounded outlet to a switchable connection.