Zhejiang Kangtai Electric Co.,Ltd.(Yueqing Kangtai Hardware & Tool Co.,Ltd.)For 12 years now, We have been specializing in the manufacture of various CE,TUV/GS,R&TTE,UL,FCC-approved circuit testers / detectors / door chimes / switches. There are 10 series including more than 100 types for your reference and selection.Such as: Multi-Function Tester,Digital Voltage Tester, Wireless Digital Door Chime, Door/Window Entry/Alarm, Radio Controlled Set, AutoMobile Circuit Tester, Battery Tester, Multi-Function Detector, Voltage Tester, Wall Mounted Switch, Electronic Timer. If you’d like to know more information of our products, please kindly visit our homepage: http://www.chinatester.com With our reliable quality and best prices, We are able to export to many countries worldwide. Inquire today and you’re sure to receive a reply within 24 hours.OEM and small trial orders are welcome.