Profile: A-Sun Test Co., Ltd. specializes in providing testing and measuring instruments. We are an ISO 9001 certified company. Our products include digital electronic scales, sound level meters, moisture meters, hygro-thermometer, anemometer, and thickness gauge. We also offer vibration meter, microwave radiation detector, insulation tester, and transistor tester. Our gas meter includes ergonomic mold for hand held touching & single hand operation, and audible & visual alarm. The sensor in the gas meter performs self detection during start up.