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How do I replace an APX motion sensor battery

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Change battery ws4904p

First, make sure you have the correct replacement battery. Go ahead and get a Lithium CR123A battery. These are rather expensive at retail, so do yourself a favor and get as many as you need at an online source such as Amazon. These sensors require one battery. The DSC glass break sensors in our home required two. Our glass break sensor went out within a week of the motion sensor, so I just replaced all of them. YMMV.


Second, determine which way the sensor is housed in the, uh, housing. The "bottom" will have a small tab with a circle in the middle, like the picture below.


As you can see from my incredimazing MS Paint skillz, use your knuckles to gently tap the sensor away from the tab. It should pop right off. This can be annoying if you don't have lightning speed and cat-like reflexes to prevent it from falling behind the entertainment center.

Once the sensor is removed from the housing, push the battery cover off of the battery compartment. Remove the old battery, and install the replacement in the same direction. Put the cover back on, and then align the sensor in the housing until it is flush with the bottom part of the housing. Remember to recycle the old battery if at all possible. Good luck!

Sep 12, 2013 | DSC Ws4904p Wireless Motion Detector...

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Ds 924 motion detector

It may have been previously learned into a zone. Sometimes, the motion will trip and activate a signal that can be learned into another zone you are trying to program. exit programming, then "tamper" the cover for the circuit board, not the battery access, on the motion, check the "status" light to see if a zone is displaying "tamper". Also check battery orientation in back of motion. When battery is first installed correctly. The light should activate during the first minute.

Sep 15, 2017 | GE 60-511-01-95R - ITI Wireless DS 924...

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APX alarm system reads low battery,what do we do?

The backup battery that help the system keypad/receiver unit to operate it is low in power and it is dying and in need of a new battery replacement.Traced the system back where main junktion and overide to the system box unit is should have the battery there.This battery really easy to do a replacement.The battery it is like a similar to a motor cycle battery.

Jul 21, 2011 | Honeywell Ademco/ Honeywell 6150rf Apx...

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I replaced the batteries in the motion sensor and now it appears that I need to learn how to adjust the timing. Is there a manual for the 270 (I think this is the one from the picture)?

there is a slide switch on the bottom of the sensor......test....1 min.....5min...
u may have to reset the sensor....turn power off .....then remove batteries.....wait 5 min....then turn on power....then replace batteries not move the sensor and wait 1.5 minutes...
U can also call heath zenith @ 800 858-8501 and talk to tech support....

Jan 24, 2011 | Heath Zenith 270 Degree Replacement Motion...

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Hello, I have a Sportline Digital Motion Sensor.

Do you mean the screen is blank or you cannot remember how to program it? Was it working perfect until you replaced the Battery?
Make sure the battery is inserted with the positivet side up?
Manual is here:
Replacing the battery: 1. Unscrew the battery compartment cover on the backside of the unit using a small Phillips screwdriver and remove the cover. 2. Remove the exhausted battery from the unit, and insert a new battery (be sure to place the positive (+) side of the battery is visible, facing toward the battery compartment cover). 3. Replace the battery compartment cover on the battery compartment and fasten the screw (CAUTION: do not over tighten).

Dec 14, 2010 | Sportline 370 Traq Motion Sensor Pedometer...

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My sensor no longer works. It use to turn on the porch light when someone entered the carporch. How do I open the sensor so that I can put new batteries in it? I know that it uses AAA batteries.

Manual for this sensor is not available.
In the Zenith I have installed The motion sensor battery slot was h at the back side of the sensor, you had to remove the sensor from the wall sliding it on one side to access the battery. It mounted two AA batteries, not AAA.

Aug 17, 2010 | Heath Zenith 270 Degree Replacement Motion...

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Motion sensor wasn't working, replaced battery. Now says sensor tampered. How do I reset

In your motion there is a tamper switch. make shure your caver was properly installed.
at the panel enter your code as you would to disarm your system and repeat disarming a second time.

Nov 07, 2009 | GE Security Simon 3 Wireless Home Security...

1 Answer

Need fuel filter location on 96 es 300 lexux

It is Located on the Driver Side.Apx 1 foot back From the Battery. (Between the firewall and the Battery) on the side panel
down apx 1 foot

Nov 30, 2008 | 1996 Lexus ES 300

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