SMD-426, SMD-427 
D-302758  25 
Battery cover
Open battery cover and
connect the battery to its
terminals (without
insulator). Verify proper
polarity.
3 volts CR123A
Tamper
switch
Enroll
button
 
Figure 9a. Battery Connection for CR123A  
Battery cover
Open battery cover and connect the battery to its terminals.
3 volts CR17450
Tamper
switch
Enroll
button
 
Figure 9b. Battery Connection for CR17450 
Note: When the battery first makes contact, the alarm horn may sound for one second. This indicates that the 
battery is connected properly.  
Close the cover, then press the test button (see fig. 1) for about 2 seconds, (for further details see par. 3.6). 
3.6 Resetting the Transceiver Module 
The detector has a wall / rear tamper switch to alert removal of detector. The tamper switch actuator, extending 
through a hole in the base (see Figures 9a and 9b), is pressed against the bracket when the unit is attached to the 
bracket. 
Removal of the unit from the bracket will cause the switch contacts to open, creating a tamper event, which will 
be reported by the transceiver to the control panel.  
4. ENROLLMENT 
Refer to the PowerMaster-10 Installer Guide for the device enrollment procedure.