
Motion Detector, Model MS10A Set Up and Operating Instructions
Installation
1. Install four AA alkaline batteries in the battery 
compartment on the MS10A. Observe polarity.
4. Set the slide switch on the back of the MS10A to 1 to 
trip the alarm if only one movement is detected (most 
sensitive). Set to 2 to trip the alarm only after 2 
movements are detected (helps prevent false alarms).
4. Press the CODE button on the back of the MS10A 
with the point of a pencil.
5. Set the INSTALL/RUN switch on the Security 
Console to INSTALL.
6. Press TEST on the MS10A. The Console emits a tone 
and the next unused zone indicator lights up.
7. Set the Console's slide switch back to R UN1 or RUN2.
8. To set up additional Motion Detectors (up to 16*) 
repeat the above steps.
*Note: you can install a total of 16 zones in the Console. 
This can be a combination of Door/Window Sensors and 
Motion Detectors. E.G. 8 Door/Window Sensors AND 8 
Motion Detectors. See your Security System Owner’s 
Manual for more information.
If the Console is NOT armed and in the RUN2 mode, you 
will hear a chime. If the Console IS armed the Motion 
Detector will trip the alarm and sound the siren.
After you walk past the Motion Detector, it will not see 
motion again for about a minute (conserv es battery power).
Replacing batteries
Slide the battery compartment cover off and replace the 
battery with a 9V alkaline type. After replacing the battery, 
the following steps are necessary to determine that the 
Console still recognizes the MS10A.
1. Place the Console’s slide switch to RUN2.
2. Press TEST on the MS10A. If the Console chimes, it
recognizes the MS10A and no further action is 
necessary.
If the Console did not chime:
1. Place the Console’s slide switch to INSTALL.
2. Pr ess TEST on the MS10A. T he MS10A’s r ed indicator
light flashes, and MS10A transmits a random code to 
the console. The Console ackno wledges this with a beep 
and logs in the MS10A to the next available zone. To 
make sure the Console logs the MS10A back into the 
same zone it was allocated to befor e you changed the 
battery, wait 4 hours after removing the old battery 
before reinstalling (until the zone indicator on the 
Console starts flashing).
P.I.R MOTION DETECTOR
Operation
When the Security System is armed using a Key Chain 
Remote the Motion Detector will always trip the alarm 
when it sees motion. When the system is armed using an 
SH624 Remote Control it can be armed in the Home or 
Away mode. When armed in the Home mode, Motion 
Detectors will NOT trip the alarm.
Place the Motion Detector on a bookshelf, or attach it to a 
wall about 6 feet off the ground, using the supplied 
mounting bracket. Wait about 45 seconds for the Motion 
Detector to settle then walk past it.
X-10 (USA) Inc., 91 Ruckman Rd., Closter, NJ 07624. http://www.x10.com
X-10 (USA) INC. LIMITED 1-YEAR WARRANTY
X-10 (USA) Inc. warrants X-10 products to be free from 
defective material and workmanship for a period of one (1) 
year from the original date of purchase at retail. X-10 
(USA) Inc. agrees to repair or replace, at it’s sole discretion, 
a defective X-10 product if returned to X-10 (USA) Inc. 
within the warranty period and with proof of purchase.
If service is required under this warranty:
1. Return the defective unit postage prepaid to X-10 
(USA) Inc. at the address below.
2. Enclose a check for $4.00 to cover postage and 
handling.
3. Enclose a dated proof of purchase.
4. X-10 is not responsible for shipping damage.
MS10A-998DR