workerSENTRY Technical Details
A. Wall transmitter
When the button is pressed, a signal is transmitted. The unit is battery powered; typical battery life is 3-5 years. Ideal for locations where different people may be present, but who may need to summon assistance.
B. Lone worker transmitter
It can be carried in a pocket, or worn in the carrying pouch (supplied). It features buttons, which allow a worker to call for help, and it also features a tilt switch, which automatically triggers an alarm should the worker collapse, or be injured. The pull-cord is a security feature, which may be clipped to a belt, and should the unit be forcibly removed, an alarm will be triggered. This is primarily aimed at individuals such as security guards. The unit is battery powered; typical battery life is 3-5 years.
C. Wrist transmitter
This is ideal for individuals who need a discreet and convenient device. Fully waterproof, a single press of the button will ensure assistance is quickly on its way. The unit is battery powered; typical battery life is 3-5 years.
D. Pendant transmitter
Again, portable and waterproof, this unit has a slightly longer range than the wrist transmitter. The unit is battery powered; typical battery life is 3-5 years.
E. Pocket Pager
Worn by a member of staff to receive the transmitted messages, with an audio and vibrate function.
F. Central Receiver
The unit may be a four-channel or eight channel device. This means it is capable of supporting four or eight different transmitters (A-D).
It is also possible to specify an 8-channel receiver with an integral paging transmitter (E).
The central receiver can also support other equipment:
A siren/strobe can be connected to the system, which is ideal for raising the alarm in a noisy environment.
An autodialler is available for the system. This device is preprogrammed with one or more phone numbers (may be intemal, external or mobile). A voice message is recorded into the dialler, giving the location where assistance is required. In the event of a subsequent alarm, the dialler contacts all the numbers stored within it, and delivers the voice message. This is widely used in circumstances where a worker may be alone in a building, and help must be summoned from outside.
There is the option of a delay on the operation of either/or the siren and autodialler from when the alarm is raised.
In the event that no land line is available for the dialler, a GSM autodialler is available which can make extemal phone calls using mobile telephone technology.
Signal Repeater (not shown)
In large buildings, or heavily constructed areas where signal penetration is poor, it may be necessary to add repeaters into the system to ensure the signal reaches the central receiver. These devices are placed around the building, forming a network which ensures total coverage.