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A rugged, smart and easy-to-use alarm transmitter designed for workplaces 
where a high level of security is required, the Ascom a51

 is your protector in 

times of need. Not only does this lightweight pocket-sized transmitter allow you 
to send alarms manually, it will also transmit an alarm automatically if for some 
reason you can’t.

Two alarm buttons 

There are two alarm buttons, one for soft 
alarms and one for emergencies. Each 
button can be programmed for a variety of 
responses, ensuring that the right alarm is 
transmitted to the right people – without 
confusion. And because the buttons are 
placed on the front, you’ll have no trouble 
finding them. In addition to cutting life-
time costs, a built-in antenna not only pre-
vents objects from getting caught on the 
aerial, but also reduces risk of breakage.

Extra safe

For extra safety, there’s a pull-cord that 
activates the emergency alarm when 
detached from the transmitter, for exam-
ple if it’s forcibly taken from a person. The 
automatic man-down alarm is activated 
depending on the position and angle of 
the transmitter over a predefined period 
of time. The no-movement alarm is sent if 
there’s no sign of life from the user within 
a predefined time. 

To avoid false alarms, a warning tone 

sounds before automatic alarms are trans-
mitted. This function is available in all ver-
sions and allows the user to cancel the 
alarm if necessary.

Keeping track of the user

To ensure rapid assistance, the Ascom a51 
features an optional location function. As 
soon as an alarm is sent, locator codes and 
other vital information are transmitted. 
That way, the current position of the person 
carrying the transmitter can be estimated 
with pinpoint accuracy.

Smart design

The Ascom a51 offers a range of smart 
features for maximum user-friendliness, 
including rechargeable batteries to save 
time and ID labels for easy identification. 
The latter is especially important since 
every pager has its own SIM-card. After all, 
if you’re carrying your colleague’s trans-
mitter, you’re also carrying their personal 
settings. Furthermore, the Ascom a51 is 
available in two colours to distinguish dif-
ferent usages.

Ascom a51

 

Heavyweight protection in a lightweight package 

ascom

On-site wireless communications 
for quicker response

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