APPTECH Services Pte Ltd is a Singapore-based company that was founded in 2012. With over a decade of experience, we specialize in security systems maintenance in Singapore. We are a well-known distributor of the Audio/Photo Door Entry Telephony System, which improves the security. Easy installation of security equipment like CCTV, a card access system, a telephone intercom system etc. Visit the website to learn more about the security system and its features.