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DSC POWER SERIES 433 MHZ WIRELESS DEVICES FAQS

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EV DW4917 Recessed Contact
How is the EV DW4917 mounted?

EV DW4927 Shock Sensor with Contact
Can the EV DW4927 be used as both a window contact and shock sensor?

EV DW4975 Vanishing Contact
What are the dimensions of the EV DW4975 contact and magnet?
What’s the difference between the EV DW4975 and the WS4945?

WLS912L-433 Glass Break Detector
How far away can the WLS912L-433 detect breaking glass?

WLS914-433 Dual Lens Motion Sensor
What’s the advantage of a dual lens motion detector?

WS4904P Motion Sensor
How large of a pet can the WS4904P be used with?

WS4936 Smoke Detector with Heat Sensor
Does the WS4936 have a built-in sounder?

WS4920HE Repeater
How many devices can the WS4920HE repeat?
Does the WS4920HE take up a zone?

WS4938 Panic Button
What’s the range of the WS4938?

WS4939 Four Button Key Fob
What’s the difference between the WS4939 and the WT4989?

WS4945 Contact with Auxiliary Input
What’s the difference between the EV DW4975 and the WS4945?

WS4949 Two Button Key Fob
What functions does the WS4949 have?

WS4965 Tri-Zone Transmitter
What are the three zones on the WS4965?
How does the tilt switch work?

WS4913 CO Detector
What alarm systems is the WS4913 compatible with?
What’s the lifespan of the WS4913 detector?

WS4985 Flood Detector
How long of a wire does the WS4986 water probe come with?

WT4901 Indoor Siren
What alarm systems can I use the WT4901 siren with?

WT4911B Outdoor Siren with Blue Strobe
What is depassivation and how do I do it?
What alarm systems can I use the WT4911B siren with?

WT4989 2-Way Key Fob
What’s the difference between the WS4939 and the WT4989?

WT5500(P) Wireless Full-Message Keypad
What systems do the WT5500 work with?
Will the WT5500 read out full display?

WTK5504(P) Wireless Touchscreen Keypad
What systems can you use the WTK5504 with?
Can you get into programming with the WTK5504 keypads?

ION Plunger Style Contact
What is the advantage of using the ION Plunger over a regular recessed contact?
Where is the whip antenna installed?

Resolution RE304 Magnetic Vehicle Sensor
Will deer set the RE304 off?

 

 

 

EV DW4917 Recessed Contact

 

 

 

How is the EV DW4917 mounted?

  1. Choose a mounting location. Measure carefully to ensure that the magnet and transmitter will line up properly when the door is closed. Mark the position.
  2. Using an 11/16” drill bit, drill the holes for the magnet and transmitter.
  3. The device is designed to fit snugly into the hole and it may need to be carefully widened a little bit to be large enough.
  4. Insert the magnet and transmitter with flush mount cap. If it is too loose, you can switch to the flanged cap and screw that in so that the device is secure. - Back To Top

 

 

EV DW4927 Shock Sensor with Contact

 

 

 

Can the EV DW4927 be used as both a window contact and shock sensor?

Yes. The sensor comes with a magnet and has a built-in reed switch in addition to being able to detect the impact of somebody trying to break in. You will use jumper 3 (J3) to select whether or not the reed switch is enabled. J3 on enables the reed switch while off disables it. - Back To Top

 

 

 

EV DW4975 Vanishing Contact

 

 

 

What are the dimensions of the EV DW4975 contact and magnet?

The transmitter is 2 1/4” x 1” x 15/64”. The magnet is 1 ¼” x ⅜” x 15/64”. - Back To Top

 

 

 

What’s the difference between the EV DW4975 and the WS4945?

The first and more obvious difference is the visual and aesthetic differences. The EV DW4975 has a slimmer profile and is generally more visually appealing to people. The other major difference is that the WS4945, in addition to the built-in reed switch, has an auxiliary hardwired input. This allows you to take a hardwired device and transmit its openings and closings wirelessly. - Back To Top

 

 

 

WLS912L-433 Glass Break Detector

 

 

 

How far away can the WLS912L-433 detect breaking glass?

On high sensitivity the max distance that it is rated for is about 20 feet. Keep in mind that this needs to be line of sight. Any obstacles that could impede the sound waves can drastically decrease this range. This does include things like curtains that can dampen the sound. - Back To Top

 

 

 

WLS914-433 Dual Lens Motion Sensor

 

 

 

What’s the advantage of a dual lens motion detector?

Having two lenses offers the capacity for superior pet immunity as the detector can determine the difference between a small or medium pet and a human. It does this while maintaining a high level of sensitivity. - Back To Top

 

 

 

WS4904P Motion Sensor

 

 

 

How large of a pet can the WS4904P be used with?

It can be used for pets up to 60 pounds. Keep in mind that there’s a few steps you can take to help ensure that your pet doesn’t set off false alarms if it is less than the weight restriction. Never point the motion detector at steps that the pet can climb up. This will potentially make the pet look bigger than it is to the motion detector. Similarly, don’t point the motion detector at any furniture that the pet might climb on. - Back To Top

 

 

 

WS4936 Smoke Detector with Heat Sensor

 

 

 

Does the WS4936 have a built-in sounder?

Yes it does. In addition to the smoke and heat sensor, the WS4936 has an 85dB piezo siren built into the device. - Back To Top

 

 

 

WS4920HE Repeater

 

 

 

How many devices can the WS4920HE repeat?

The repeater can handle up to 164 wireless devices. This is almost definitely more than you’d ever need. It only works with one-way 433mHz DSC devices though. - Back To Top

 

 

 

Does the WS4920HE take up a zone?

The WS4920HE does need to be programmed into one of the zones on the alarm system. You’ll use zone type 26 which is the 24-hour non-alarm zone type. With that you will see an open zone if there’s an issue. It’s recommended you also use the force arm zone attribute so that you can arm the system while the repeater zone is showing open. To do this you’ll go to the zone attributes for that zone: 1XX where XX is the two digit zone number. Then option 5. - Back To Top

 

 

 

WS4938 Panic Button

 

 

 

What’s the range of the WS4938?

It’s impossible to give an exact maximum range since each application will be vastly different. Generally we’ve seen that you will get 100 to 200 feet usually. Our suggestion is to test wireless panic buttons anywhere that you may want to use it from to confirm that it will work. You may want or need to add a WS4920HE wireless repeater to boost the signal. - Back To Top

 

 

 

WS4939 Four Button Key Fob

 

 

 

What’s the difference between the WS4939 and the WT4989?

The major difference between the two devices is that the WT4989 is a two-way wireless device. This means that it has a much more limited compatibility: Impassa, Alexor, and TR5164-433. But it also means that it can have useful extra features since it will not only transmit to the alarm, but receive information back as well. The WT4989 has a small screen that will show the status of the alarm system such as armed or disarmed. Also it has an audible confirmation tone that will let you know that the alarm received the signal from the device. - Back To Top

 

 

 

WS4945 Contact with Auxiliary Input

 

 

 

What’s the difference between the EV DW4975 and the WS4945?

The first and more obvious difference is the visual and aesthetic differences. The EV DW4975 has a slimmer profile and is generally more visually appealing to people. The other major difference is that the WS4945, in addition to the built-in reed switch, has an auxiliary hardwired input. This allows you to take a hardwired device and transmit its openings and closings wirelessly. - Back To Top

 

 

 

WS4949 Two Button Key Fob

 

 

 

What functions does the WS4949 have?

While it only has 2 buttons it packs in 3 functions. It has an arm button, a disarm button, and when both buttons are pressed for 3 seconds it will cause a panic alarm. - Back To Top

 

 

 

WS4965 Tri-Zone Transmitter

 

 

 

What are the three zones on the WS4965?

The first zone can either be the built-in reed switch or the built-in tilt switch. The device then has 2 auxiliary zone inputs that make up zones 2 and 3. These can be just about any hardwired switch, just keep in mind that it cannot provide any power if needed by the hardwired device. Each zone will have its own unique serial number. - Back To Top

 

 

 

How does the tilt switch work?

The tilt switch is used in place of the reed switch. The tilt switch will be in an open state any time the transmitter is not vertical. This is most commonly used on overhead doors.

To activate the tilt switch mode you will need to take off J3. Optionally, J2 can be taken off to give the transmitter an additional 1 minute delay. It will not send the open signal for 1 minute and then it would potentially be followed by the regular entry delay for the system. This gives an opportunity for a longer than normal delay that could be very useful for a garage. - Back To Top

 

 

 

WS4913 CO Detector

 

 

 

What alarm systems is the WS4913 compatible with?

The wireless carbon monoxide detector is only compatible with Impassa panels and PowerSeries panels (PC1616, PC1832, PC1864) that are version 4.5 or higher. - Back To Top

 

 

 

What’s the lifespan of the WS4913 detector?

The WS4913 has a 5 year lifespan before needing to be replaced to maintain accurate CO detection. - Back To Top

 

 

 

WS4985 Flood Detector

 

 

 

How long of a wire does the WS4985 water probe come with?

The WS4985 comes with a 6 foot cord on the water probe which gives a lot of flexibility on the placement of the transmitter and probe. - Back To Top

 

 

 

WT4901 Indoor Siren

 

 

 

What alarm systems can I use the WT4901 siren with?

DSC wireless 433MHz sirens can only be used with the Impassa and Alexor alarm panels. - Back To Top

 

 

 

WT4911B Outdoor Siren with Blue Strobe

 

 

 

What is depassivation and how do I do it?

For safety and storage reasons the batteries for the DSC WT4911B come in a state that keeps them from discharging. The process of depassivation puts the battery back in a usable state. To do this use the following steps:

  1. While plugging in the battery, hold the tamper switch closed.
  2. Once the battery is plugged in, continue holding down the tamper switch for 10 seconds.
  3. Release the tamper switch and within about 10 seconds the strobe should start flashing to indicate that it is in depassivation mode.
  4. Depassivation can take up to 30 minutes and potentially longer. After 30 minutes if it was successful, the siren will beep 3 times every 5 seconds. Press and release the tamper and the siren will beep and flash and then be in normal mode and ready for enrollment.
  5. If after 30 minutes the siren beeps only 1 time every 5 seconds, you will want to restart the depassivation by removing the battery and starting over from step 1.
  6. If you have tried a few times and the battery is still not successfully depassivating, the battery may need to be replaced. - Back To Top

 

 

 

 

What alarm systems can I use the WT4911B siren with?

DSC wireless 433MHz sirens can only be used with the Impassa and Alexor alarm panels. - Back To Top

 

 

 

WT4989 2-Way Key Fob

 

 

 

What’s the difference between the WS4939 and the WT4989?

The major difference between the two devices is that the WT4989 is a two-way wireless device. This means that it has a much more limited compatibility: Impassa, Alexor, and TR5164-433. But it also means that it can have useful extra features since it will not only transmit to the alarm, but receive information back as well. The WT4989 has a small screen that will show the status of the alarm system such as armed or disarmed. Also it has an audible confirmation tone that will let you know that the alarm received the signal from the device. - Back To Top

 

 

 

WT5500(P) Wireless Full-Message Keypad

 

 

 

What systems do the WT5500 work with?

The WT5500 wireless keypads will work with the DSC Impassa and Alexor systems. They will also work with DSC PC1616, DSC PC1832, and the DSC PC1864 that are using the TR-5164 transceiver modules. - Back To Top

 

 

 

Will the WT5500 read out full display?

The WT5500 is basically a fully wireless version of the PK5500 alpha-numeric wired keypads. These keypads will read out alpha and numeric chracters so you will be able to label zones and see all areas of the alarm panel's programming sections. - Back To Top

 

 

 

WTK5504(P) Wireless Touchscreen Keypad

 

 

 

What systems can you use the WTK5504 with?

You can use the WTK5504 keypads with the DSC Impassa or Alexor totally wireless systems. You can also use the WTK5504 keypads with a DSC PC1616, DSC PC1832, and DSC PC1864 systems that are using a TR-5164 transceiver module. However, you will not be able to use the WTK5504P wireless keypads with proximity capability with the hardwired systems even if you have the TR-5164 transceiver. - Back To Top

 

 

 

Can you get into programming with the WTK5504 keypads?

The WTK5504 keypads are not full keypads. They are, in all essence, just arming stations. You will be able to arm and disarm the system with these, but they won't give you full access to the system's programming. - Back To Top

 

 

 

ION Plunger Style Contact

 

 

 

What is the advantage of using the ION Plunger over a regular recessed contact?

The ION Plunger Style Contact is most commonly chosen by people because you only have to drill into the door jamb and not the door. Some people can't drill into the door itself for warranty issues with the door. That is the main reason why people choose this over others. - Back To Top

 

 

 

Where is the whip antenna get installed?

The whip antenna that is part of the ION Plunger Style Contact gets install inside the door jamb's inner cavity. You will drill a large hole for the contact itself to fit into and then in the center of that hole you'll drill a second smaller hole to slide the antenna through. - Back To Top

 

 

 

Resolution RE304 Magnetic Vehicle Sensor

 

 

 

Will deer set the RE304 off?

No. Unless they happen to be cyborg deer. The RE304 is actually triggered by distortions in the Earth’s magnetic field that are caused by large metal objects moving by. So people or animals or blowing leaves will not cause false alarms.

False alarms will generally only occur on the RE304 if the sensor is moved. This could be from poor mounting or someone tampering with it. - Back To Top