Access control systems are electronic devices and systems which are that are designed to control through a network who should have an access to a certain areas in an office, building or premises. These systems comprise of several devices which help to recognizes and authenticate only authorized entry of a person(s) to enter into and out of the premise thereby giving complete protection by ensuring security with the system. There are various ways to allow access through use of devices (Readers) which can be;

• Card and Code readers
• Fingerprint and card Readers
• Palm readers
• Facial recognition Readers
• Other components of these systems include; Slave readers/Exit readers, enrollers, Door controllers, power supply, key-switch, break-glass, switches, maglock, brackets, door closures/holders

A fire alarm system has a number of devices working together to detect and warn people through visual and audio appliances when smoke, fire are present. These alarms may be activated automatically from smoke detectors and heat detectors or may also be activated via manual fire alarm activation devices such as manual call points or pull stations. Alarms can be either motorized bells or wall mountable sounders or horns.

Time and attendance systems are used to track and monitor when employees workforce. These systems are controlled through readers and software’s that record real time clock in and out of each individual. A time and attendance system enables real time monitoring of individuals for working hours and late arrivals, early departures,shifts,overtime, time taken on breaks and absenteeism. Some of the time attendance software allow integration to the payroll easing paperwork and reducing expenses such as over payment.

This can either be an automatic alarm system or a basic manual alarm system. A manual alarm system is a basic push and alert alarm system (operated by a person who is present physically at the location under threat). The alarm is activated manually by pressing a fixed or wireless remote button. Automatic alarm system allows full coverage against intrusion regardless of whether the client is present at home or the office. The automatic alarm system is triggered from a variety of sensors, such as magnetic door contacts, vibration sensors for the windows and infrared motion sensors. Other components include;

• Control panel and wall keypad for arming and disarming.
• Exterior siren and strobe light
• Power supply with a backup battery