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12-8 -0000 KEYRING TRANSMITTER Product Manual
Sea Air and Land Communications Ltd, 10 Vanadium Place, Addington, Christchurch 8024, New Zealand February 2019
Product Overview
The 12-8 -0000 is an extremely small, low cost keyring
or pendant POCSAG paging transmitter, by default
supplied with 4 buttons, but 1,2,3 and 5 button versions
are also available. Powered by a standard CR2032
coin cell, the transmitter will operate for more than
1000 transmissions under normal conditions before
needing to be replaced.
The transmitter is ideally suited to retail assistance, rest
home emergency applications and school and
commercial alert systems. Using a POCSAG receiver
the 12-8 -0000, as with all paging transmitters, can
also be used for any general remote- control application (turning on lights, disabling alarms etc.)
The 12-8 range of products are POCSAG direct to pager transmitters, allowing low cost systems
to be developed since intermediate receivers and transmitters are not required for short range
applications.
12-8 transmitters support up to 5 inputs, each of which can be programmed with up to a 35-
character message. Programming can be either with a serial programming cable that can be
purchased separately or preprogrammed when supplied. Once operating frequency has been
set the 12-8 -0000 messages can be changed using programming software with an optional
programming lead, or without programming leads using a PC with LCD monitor. Programming
software when used with an LCD monitor can be used to transmit data as a low rate flashing
sequence detected by a light sensor within the transmitter. This visual programming method
works well with most modern high contrast LCD panel monitors without needing the transmitter
case being opened.
Although the 12-8 is a low power transmitter, a direct line of sight transmission range of up to 200
metres can be expected. Transmit range within buildings is reduced, but still considerable having
proven to be effective in some cases between floors and across buildings.
The transmitter is available with a solid black plastic case only.
