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Honeywell HPS-21 D-21 Linear Wireless Wall Mount Transmitter 303.5
$44.99
Out of stock
Tested D192C bell supervision module. Ideal for replacement use. This item consists of the board and 560 ohm resisto…
$69.99
NOS D192D Bell supervision module. One year warranty
$49.99
Refurbished D192D Bell supervision module. Complete with mounting screws, resistor and install instructions 90 …
$59.99
Release module used for to signal elevator recall or to close doors upon fire alarm. NOS with 1 year warranty …
$9.99
Detection Systems EOL200 end of line power supervision module. Used on 4 and 6 wire smoke detector circuits to supervi…
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