http://www.surveillance-safety.com/linear-power-supply.htm Linear power supplies for room monitoring good for supplying power to environmental micro senders. These miniaturized devices turn the normal 220 V current into a tension which is compatible with the micro-sender circuits. Copyright 2001-2007 Endoacustica - P.I. 06306960722 - All rights reserved surveillance-safety.com RSS Generator http://www.surveillance-safety.com/bug-power-supply-device.htm Bug power supply device that assures a constant feeding to the microsender. http://www.surveillance-safety.com/220-ac-micro-power-supply.htm Stabilyzed 220V AC Power supply adjustable to 1.5-12V DC.