Advance Tech Service [P] Ltd. Offers Light Weight Ion Gun. Advance Tech Service [P] Ltd. Received EFY Award in Soldering Desoldering category. Light Weight Ion Gun is based on high frequency technology from SSD Japan. It has in-built Piezoelectric Transformer. It features Low EMI Generation, proprietary self adjust balance and has longer performance life. Light Weight Ion Gun is ideal for operations where ions and air come out on press of trigger.