ADT primarily uses Honeywell/Ademco and DSC wireless products. There are a few other companies that manufacture ADT-compliant sensors, cameras, detectors and other products, but even those companies generally use Honeywell or GE components.
The series name or number is usually somewhere on the sensor. Since they are standard products, users can save a lot of expenses if a magnet comes loose or the case cracks, for example. You can buy replacement parts quickly at Amazon or a retailer. However, if the sensor goes bad, you will have to purchase it through ADT since they have no DYI instructions for users to connect it themselves to the system.
The smart appliances compatible with ADT, also mostly from Honeywell and DSC, communicate with Z-Wave technology. Z-Wave is the most common smart device protocol and allows the system to connect and perform whatever tasks the user wants remotely.
There is a wide-range of products that can be added to the ADT systems depending on your personal requirements or preference. If you’re looking for an overview of the whole system check out our full ADT review.
We love ADT due to its great mobile app, free cloud storage for up to 30 days, two-way audio, and more.
Honeywell used to own Ademco before Ademco split off and became a separate entity. The security products sold under the Ademco name are most often manufactured by Honeywell.
Window and Door Sensors
Companies can manufacture dual purpose, door and window sensors/transmitters as the size and shape allow them to be installed virtually the same way at either type of access point. The wireless window and door sensors come from the Ademco 5800 series of sensor products. All have replaceable batteries.
- 5814 – This sensor is a single-zone unit and is tiny: Height (H), 1 ½ inches, Width (W) 1 3/16 inches and Depth (D) 5/8 inch.
- 5815 – This model is dual-zoned with dual reed switches to allow vertical or horizontal mounting. Larger than the 5814, its dimensions are (H x W x D): 3 inches x 1 ½ inches x 7/8 inch.
- 5816 – Also a two-zone, unlike the other two which have screws securing the sensor and battery compartments in place, has a lift-top case. Dimensions are 3 1/16″ x 1 9/16 inch x 1 3/16 inch.
- 5817 – This is a three-zone transmitter and slightly larger than the others: 3 ½ inches x 1 9/16 inches x 1 3/16 inches.
- 5817CB – This transmitter is probably too robust and not worth the extra cost for home use, but small businesses may find it appropriate to install. It has three zones with four loops (loops mostly make the sensors more tamper-proof). The dimensions are the same as the 5817.
- 5818 – The 5818 is the standard, single-zone wireless recessed sensor by Honeywell. Recess transmitters are designed to fit inside the door or window frame. You must drill a hole in the door and insert the rounded, cylindrical sensor. The user then drills a hole in the frame to add the magnet. Dimensions for the sensor are diameter 13/16 x length 4 7/8 inches and for the magnet ½ inch diameter x length 1 ¾ inch.
- 5818MN – This is the mini, single-zone recessed transmitter. The sensor length is only 3 inches (diameter ¾ inch).
- 5820 – This is an upgraded, sleeker, version of the standard window and door sensor, the 5814. You pay more for the longer battery life and smoother casing. Longer and thinner at 3 inches high, the length and width are the same as the 5814.
- 5800Micra – This is the smallest door and window sensor produced by Honeywell, advertised as the smallest available in the market. Button-shaped, it is ¾ of an inch in diameter and 1/3 of an inch long.
Glass Break Sensors
Ademco has four different glass break transmitters in their 5800 series.
- 5800SS1 – Also called a shock sensor, the 5800SS1 single zone transmitter detects shattering glass of all types. The area covers is 10 feet x 10 feet and dimensions are 1 5/8 inches x 1 3/5 inch x 4/5 inch.
- 5819WHS – A three-zone sensor, this square-shaped transmitter allows sensitivity adjustments. Dimensions are 4 ¾ inch x 1 ½ inch x 1 inch.
- 5819 – The 5819 functions identically to the 5819WHS but instead of being square, it looks like an elongated rectangle.
- 5853 – This sensor is the most technologically advanced and most expensive in Honeywell’s glass break sensor line. There are four sensitivity selections: lowest, low, medium and max. It has a 25-foot range and 10-year battery life. The dimensions are 5 inches x 3 inches x 1 inch.
Honeywell makes three types of Passive Infrared (PIR) wireless motion sensors and one type of wireless microwave detector.
- 5890 – This is their cheapest model, with a 40 x 56-foot coverage range. Dimensions are 5 inches x 1 11/16 inches x 1 7/8 inches. It is not “pet proof.”
- 5890PI – This unit is the one most often provided by ADT dealers. It has a slightly smaller range than the 5890, 35 x 45 feet but is pet proof for pets up to 40 pounds. Wider than the 5890 at 2 11/16 inches, the other dimensions are the same.
- 5894PI – This transmitter is pet proof up to 80 pounds and has a temperature compensation module inside. To allow the transmitter to fit the different sensor boards, the transmitter’s width increases to 3 inches. The coverage range is the same.
- 5897-35 DUAL TEC – The Dual Tec provides 35 x 30-foot coverage and uses microwaves instead of being PIR. Dimensions are 5 inches x 2 7/8 inches x 2 5/16 inches.
Temperature and Flood Sensors
Honeywell has one relatively new wireless temperature and flood sensor available.
- 5821 – This transmitter detects five different temperature ranges that can be selected through your console. Tamper-proof, the battery lasts ten years.
For flooding, a probe is available at extra cost (4170PB). There is also a temperature probe if more pinpoint temperature accuracy and location is required (T280R). Dimensions of the sensor without the probe are three inches x 1 ½ inches x 7/8 inch.
The DSC wireless sensors provide the same sort of robust and quality functionality as Honeywell does. There are also several varieties available in each category.
Door and Window Sensors
- WS4975 – The most cost effective offering, this transmitter has a slim profile at 2 ¼ inches x 1 inch x 3/16 inches.
- Ion Plunger – Shaped like a small plunger, the Ion Plunger is a recessed door and window sensor the instead of a magnet uses a protruding button that is pushed down when the door is closed. This means only one hole needs to be drilled in the door or window. It is 1 inch deep and ¾ inch wide with a better than average 500-foot range.
- WS4965 Tri-Zone – This sensor has a tilt mode so it can be used on garage doors also. It measures 2 5/16 inches long, 11/16 inch wide and is 1 inch deep.
- WS4917 – This is DSC’s traditional recessed door and window transmitter, with magnet and sensor that need to be set into each section of the door/window and frames
Both transmitter and magnet are 11/16 in diameter. The sensor and magnet are both 2 ½ inches long.
We love ADT due to its great mobile app, free cloud storage for up to 30 days, two-way audio, and more.
Glass Break Sensors
The glass break sensors by DSC are manufactured by Tyco.
- EVDW 4927 – Rectangular shaped; the dimensions are 4 inches x 2 inches by 1 inch. This is the standard or low-cost option from DSC that has a regular window sensor included and mounts directly at the window.
- WLS9112L – This transmitter is made for mounting on the wall opposite the window or bank of windows and has a range of 25 feet. It weighs about 5 ½ ounces.
- WLS912L-433 – This is the most expensive of the glass break DSC sensors. It is tamper-proof and claims fewer false alarms due to its more sensitive and discerning technology. It is also lighter than the other models, weighing about 4 ounces.
- WS4904P – This is the primary motion detector in their lineup and the most affordable. Like Honeywell’s this detector has no pet proof feature. The range is 40 feet x 40 feet, and dimensions are 4 ¼ inches x 2 ½ inches x 2 2/16 inches.
- WLS914-433 – The transmitter in this model covers a slightly larger area than the basic one does, 40 feet x 50 feet. This also has a pet proof feature for pets up to 85 pounds. Dimensions are 5 inches x 3 inches x 2 3/5 inches.
Temperature and Flood
- DSC-WS4985 – This sensor uses a slightly different version of the WS4965 door and window sensor with a six-foot probe attached. Dimensions are about the same, and the battery life is approximately six years.
Honeywell and DSC have many models of wireless cameras available that range from less than $100 to close to $1000. Theoretically, all can be connected to the ADT system. However, ADT has two standard cameras that are made by Sercomm specifically for ADT that most home and small business owners’ use. There are two models of indoor cameras and one model of outdoor.
Also, you must purchase the ADT Pulse Package in order to be able to have the cameras monitored.
- RC8021W Indoor – This is the low-cost model that has no infrared capability. The viewing angle is 63 degrees diagonal, and resolution is 640 x 380.
- iCamera 1000 Indoor Low-light – This color camera with stand uses 12 infrared LEDs for viewing in low light conditions. The viewing angle is 60 degrees from a fixed lens, with VGS resolution of 640 x 480. It comes with two lenses for day and night use.
- OC810 Outdoor Day/Night Camera – Made for outdoor use, it requires an A/C power source. It has an automatic day/night switch and has good resolution up to 25 feet. The viewing angle is fixed (no pan and tilt) at 60 degrees.
Panic Alarm Pendants
Honeywell and DSC panic alarm pendants. The Honeywell version usually comes with the ADT system and most ADT dealers carry this version, though the DSC will work with the system.
The Honeywell panic alarm pendant comes with a battery, belt clip, wristband, neck strap, and keychain. Considered water-resistant, it is made for wearing in the shower or tub. It works within the confines of your home and has two ways to activate an alarm. The user can press and hold either button for two seconds or longer, and an alarm will be transmitted to the monitoring station. For immediate activation, the user can press and hold both buttons simultaneously.
The DSC WS4938 panic alarm pendant has a single button. Pressing the button once will send the alarm signal. The WS4939 comes with a battery and neck strap.
Honeywell has four wireless detector options: three for smoke and/or temperature and one for carbon monoxide. All units have audible components also that sound when a fire, smoke or carbon monoxide is detected.
- 5806W3 – The 5806 is a smoke detector only and is considered part of the 5800 series wireless sensors that work with ADT systems.
- 5808 LST – This is a smoke and fire/temperature detector that will alarm when the chemical sensor detects smoke or the temperature gets above 135° F.
- 5808W3 – Similar to the 5808LST, this model is photoelectric. It is a smoke and fire/temperature detector. It will also detect pre-freeze conditions if the temperature reaches 43° F.
- 5800CO – This is the 5800 series wireless carbon monoxide detector. There are also built-in, low battery and tampering functions that will send a signal to the panel should either of these events occur.
DSC has a wireless smoke and fire/heat option and one carbon monoxide detection option.
- WS4916 – This is a photoelectric smoke and heat detector. Operating parameters are the same as the Honeywell wireless model.
- WS4913 – This carbon monoxide detector is also similar to the Honeywell model. It has a five-year battery life.
As long as the smart appliance uses Z-Wave, and most major manufacturers use this protocol, the smart appliance should work with the ADT system. The most common smart appliances people want to be able to control remotely are thermostats, lights, and locks.
Most ADT customers, if they do not already have a wireless thermostat, buy one of the two primary offerings stocked by most ADT dealers:
- ZWSTAT – A Honeywell product, it has a complete range of functions including on/off, timer, air filter changing alerts, auto heat/cool, and fan on/off.
- TBZ48 – Also with a complete range of wireless functions like the ZWSTAT, this Honeywell product works with most HVAC systems. It works on battery or AC power and has a heat pump change-over function.
The most common method of controlling your lights is by a wireless plug-in device. The lamp plugs into the device and the wireless transmitter into the AC socket. There are also panels available that plug into the wall and can control any lights that work by the light switch on the same circuit.
- 5875 (LT300) – A Honeywell lamp module, this plugs into any outlet and lets you plug your lamp or other small appliance (like a coffee pot) into it. The range is limited to within 150 feet, unobstructed, to the console.
- WT400 – Also from Honeywell, this can control multiple lights from wherever you mount it.
Locking and unlocking doors remotely is one of the more popular smart home appliances. Used in conjunction with a camera and two-way speaker, it gives the homeowner complete autonomy in identifying and controlling access from a distance.
The ADT system uses Kwikset or Yale wireless locks as both use Z-Wave protocols.
There are four main types:
- Kwikset – The Kwikset 900 series offers three colors and nine different models. If you have one key that unlocks more than one door in your house, including the door connected to your home security system, you can allow the Kwikset unit to accept the key by following a few simple steps. Besides a key, the Kwikset has a combination pad that you can set and change wirelessly.
- Yale – Yale has three colors and models. Each also has a push button pad and one is completely keyless.
There is not a lot of negative that can be said about the technology used by ADT. ADT has unofficially partnered with the two leaders in security sensor technology, Honeywell and DSC. The quality and reliability of the technology has proven itself by the reputation each brand has built in the industry. By using existing brands rather than insisting on using proprietary tech, the user not only has a dependable system, he or she has more options to upgrade or add to want comes in the various ADT packages.
Related: the Best Security Systems of 2019