Security system keypad illuminated by proximate motion

摘要: A security interface device, such as a keypad, includes proximity detector sensing human approach and operating light source to enhance illumination of the device in response approach. timing switches off after expiration predetermined time period said on, or enhances illumination, detection movement vicinity pad. The has short range, range preferably does not intercept floor ceiling, reduce triggering by pets, fans, ceiling lights other non-human sources.