ELV Services
elv system installation

SMATV system

SMATV (Satellite Master Antenna Television System), is a community Distribution system for channels received from a variety of satellites along with Terrestrial signals & Radio. All these receptions will be combined with the help of “MULTISWITCH” and distributed with an individual and separate cable to each household in the community building. The size of the network varies from small to large. For huge buildings where coaxial cables are unsuitable, fiber optic solutions can utilize with SMATV systems. With modern equipment, any type of SMATV network can be constructed with convenience.

ELV System DEC

PA system

A public address system (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to address a large public, for example for announcements of movements at large shopping mall.

PA system DEC

Intercom system

An intercom (intercommunication device), talkback or door phone is a stand-alone voice communications system for use within a building or small collection of buildings, functioning independently of the public telephone network. Intercoms are generally mounted permanently in buildings and vehicles. Intercoms can incorporate connections to public address loudspeaker systems, walkie talkies, telephones, and to other intercom systems. Some intercom systems incorporate control of devices such as signal lights and door latches.

Why Choose Us

Competitive Price    


Competitive price

We hold a competitive price in
Malaysia with transparent, itemized

competent staff    


Well trained & experienced

Trained and qualified electricians to
ensure that all work meets all
industry guidelines and standards.

excellent after sales service    


After-sales service

Our after-sales team are efficient to
ensure your service with us is kept in
the utmost satisfaction.

ELV System Installation

ELV, which stands for extra-low voltage, refers to an electrical system with voltage lower than 50V (for alternating current) or 120V (for direct current). In most cases, it is designed in such a manner to keep the voltage within the designated threshold under standard circumstances as well as during single-fault situations. A typical ELV system installation can be further divided into several types including:(1)-Protection ELV (PELV) – connected to earth;(2)Separated ELV (SELV) – disconnected from earth;(3)Functional ELV (FELV) – anthing other than PELV and SELV. You can find ELV systems in numerous devices including CCTV cameras,

fire alarms, and access control panels. One of the main reasons ELV systems are utilized is to reduce the hazard of lethal electrocution. This explains why they are commonly found in places with potential hazards such as aquatic centers and outdoor facilities which are prone to extreme weather conditions. As far as an impeccable ELV system installation is concerned, DEC Contract is undoubtedly the best choice for you. Our high quality workmanship is some of the best in Kuala Lumpur and Selangor. Simply reach out to us via phone or email, or you can visit our office at Taman Shamelin Perkasa for further inquiries.

About DEC Contract Sdn Bhd

DEC Contract Sdn. Bhd. is a Malaysian company which has been active in many major projects. The range of project work has been involved was electrical system, conveyor system and telecommunication system work.

Our Client

  • Western Digital
  • Setia City Mall
  • Suria KLCC
  • Hospital Shah Alam
  • Sunway Velocity
  • Eco Majestic
  • Pavilion KL
  • MRT Corp

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