Alarm Systems
alarm systems — pre-owned
Browse 813 alarm systems — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
eufy 5-Piece Home Alarm Security System Kit Keypad Entry/Motion Sensor|Refurbish
Instant Alerts: Get notified as soon as motion or a breach is detected with the eufy Security app. Easy Setup: Install in minutes all by yourself. The entry sensors attach to doors and windows, while the motion sensor and keypad can be secured to walls via the included mounts.
You save $85.00
ADT LifeShield S30 Home Security System Kit Sensors Keypad Keyfob
ADT LifeShield S30 base station. - Keyfob remote. System was obtained from storage and has not been tested with active ADT service. - Wireless keypad. - Door/window sensors. - Mounting hardware and accessories.
Home Alarm System Plug-In Set with Sensors and Tablet Display, Indoor, White
Home Alarm System Plug-In Set with Sensors and Tablet Display, Indoor, White
LOT OF 3 concord Keypad
The product is a lot of 3 Concord keypads, specifically the ITI model. These keypads are designed for use in home security alarm systems, providing a convenient and secure way to enter codes or access controls. The Concord brand ensures quality and reliability in this type of product, making it a trusted choice for home security systems.
SimpliSafe 6 Piece Wireless Home Security System - White
Ready to protect, right out the box. Easy to install on every type of door or window. Deter intruders. We include a Yard Sign free with your system. Batteries, Security Decals, Yard Sign, and 3 ft. Stake.
You save $235.00
WHISTLESTOP Security Alarm Portable Window Door Screamer Police Recommended USA
Protect your home, apartment, or RV with the WHISTLESTOP Security Alarm. This innovative device is police-tested and recommended, offering 24-hour protection without the need for batteries or external power. Designed for easy installation on sliding windows and doors, it emits an ear-piercing scream to alert you to intruders. It's also portable, making it a versatile personal protection device. Crafted from unbreakable ABS polymer, this durable alarm is made in the USA and comes with all necessary mounting hardware for quick setup.
Lot of SimpliSafe Devices – Keypad-Cameras-Smoke Alarms-New Alarm-Glassbreak
QTY 1 - Glassbreak Sensor- Used (battery included). QTY 1 - 105db Extra Siren- New in Box. QTY 1 - Gen 2 Keypad- Used (batteries not included).
Qolsys IQ Panel 2 Alarm w/ back bracket and power supply
2GIG 2GIG-EDG-RK 2gig Edge Remote Keypad Secondary 2 Gig
2gig EDGE remote Keypad. This is the secondary panel for the edge system, and will not work without the main panel. Overall clean/great condition except a long the underside, it looks like the plastic has come up some (see 2nd pic). Factory reset, includes the keypad and transformer. -THIS REQUIRES A STRONG WIFI CONNECTION TO COMMUNICATE BETWEEN IT AND THE MAIN PANEL (main panel not included). -WIRING (not included) needed for connect to transformer to power this keypad. -NO WIRE, INSTALLATION, SERVICE, SUPPORT OR MONITORING IS INCLUDED. -A PIC OF THE SERIAL NUMBER/INFO IS KEPT ON FILE TO PREVENT FRAUDULENT RETURNS.
Qolsys QS7133-840 16-F Hardwired to Wireless Translator iQ2- iQ4-NEW OPEN BOX
Once we confirm and agree to your request, you may then place your order.Donot leave new requests in the order notes after purchasing. We stand behind our products. Do not place an order and then request a cancellation afterward.
GE INTERLOGIX CADDX NETWORX NX-148E LCD KEYPAD SECURITY ALARM
Removed from a working system. Working NON wireless keypad.
Honeywell Ademco Vista SA4208U Wired 8 Zone Expander Module without top cover
With the top cover removed, users can easily install and connect the module to their existing system for enhanced security features. 1 x SA4208U Wired Zone Expander - without top cover.
You save $2.66
QOLSYS IQ4 HUB POWERG HOME HUB 7" TOUCHSCREEN IQPH054 W/ POWER CORD
Working Qolsys hub model IQ4Hub part number IQPH054 with power adapter.
SimpliSafe Gen 3 Base Station Home Security System Hub Black SSBS3 03/2020 E3
SimpliSafe Base Station for the Gen 3 home security system serves as the central hub for your home protection. This sleek black unit features a built-in siren and a visual light ring that indicates system status. It connects your sensors to the monitoring center via cellular and Wi-Fi backup. Designed for easy setup, it coordinates all components of your SimpliSafe ecosystem to ensure reliable security. Note that this is the base station unit only; power adapter and additional sensors are not included.
Mighty Mule FM231 Wireless Driveway Alarm Vehicle Detection Alert System 400ft
Mighty Mule FM231 Wireless Driveway Alarm provides a reliable vehicle detection alert for homes, workplaces, or rural properties. This system utilizes electromagnetic technology to detect moving vehicles within a 400-foot wireless range, specifically designed to ignore people, animals, and wind to prevent false alarms. The kit includes a transmitter module, sensor, indoor receiver with chime, transformer, and a three-piece mounting post. Ideal for monitoring long driveways or property entrances, the indoor receiver features LED indicators for power, visitor alerts, and low battery status. This unit is easy to install and requires two AA batteries for the transmitter (not included). This is an open box item. Please ensure all parts needed appear in photos.
DSC PC1832 V4.60 with PC5108 power series expansion module and keypad
Good used pc1832 board with keypad. Panel is named something different than pc5010 or power 832 but it’s the same thing DSC PC1832 V4.60CP01 Security Alarm System PowerSeries Power832 pc5010
Lot of 4 GE Interlogix Wireless Door Window Sensors 319.5MHz Simon Concord Caddx
Caddx: NX-4, NX-6, NX-8. GE Simon: XT, XTi, Version 2 & 3. You will need your own magnets and CR2032 batteries for installation. Frequency: 319.5 MHz.
Qolsys IQPanel 2 QS9201-1208-840 Touch Screen Home Alarm System Wireless Keypad
Unknown battery life. Item has been tested to work without issues.
QOLSYS iQ4 Back mounting plate FOR IQP4001, IQP4003, IQP4088 White
Iq4 back plate only. used in good condition.
QOLSYS IQ4 Hub Power Home Hub 7" Touchscreen IQPH054 | Device Only
Screen has some scratches. Device only. Power adapter not included. See pictures for condition.
You save $7.00
Qolsys IQPanel4 Touch Screen Keypad White 7V Home Alarm System Panel MPN IQP4001
Qolsys IQPanel4 Touch Screen Keypad White 7V Home Alarm System Panel MPN IQP4001
Honeywell Vista-20P Rf Kpd 2 Door 1 Motion 1 Fob & Siren 🚨programmed
1 New Wave2 indoor siren 🚨. 1 5890pi motion ZN 11. Double sided tape or screws required to mount alarm sensors and motion. 1 6150RF keypad good condition. Similar Keypads include but are not. Similar panels include but are not.
Vintage DICON 9000 security system main unit only vg
Good condition see photos
ADT Alarm Lot
All were working when removed from service.
Nice 👍 Honeywell Vista-20P 10.23 SAVS20P Alarm Control System Board Only
Ademco Honeywell Vista. Resideo Honeywell Ademco Panels include but not limited to.
2GIG CP21-345 Go!Control Wireless Security Automation System Color Touch Screen
Especially if it arrives broken, defective, or not to your liking in any way.
Honeywell L5210 Wireless panel , LTE-L57V LTE Communicator
USED TESTED PANEL AND NEW CELL UNIT. PANEL AND CELL UNIT.
PROTAKEOVER Honeywell (Resideo) Takeover Module for Z-Wave Communications
This item does not include the backplate with the antenna. Without the antenna the Z-Wave has short range. Using this photo you should be able toMacGyver an antenna for the protakeover module.
Ring Alarm 1st Gen *Partial Kit* Home Security System *Missing Motion & Base*
MISSING MOTION DETECTOR & BASE STATION
You save $4.50
X-Sense Wireless Interconnected Combo Smoke/CO2 Detector 2-pack 10 yr Battery
These detectors feature a 10-year sealed lithium battery, providing long-lasting protection for your family. They are interconnected, so if one alarm sounds, they all sound, ensuring everyone is alerted, no matter where they are in the house.
Elk-M1GCB Cross Platform Control Wall Mount This Is The Mount Only
This is just the wall mount. Keys included.
Minut MT-P2 Remote Noise Monitoring, Smart Home Sensor Motion Noise Detect
The Minut MT-P2 Remote Noise Monitoring system is a smart home sensor designed to detect motion and noise within your home. This white noise sensor, featuring Wi-Fi connectivity, comes with an alarm included for added security. With the Minut brand's reputation for quality products, the MT P2 model ensures reliable detection and alert systems for your home.
Ring Alarm Complete System w/ Base Station, 2 Keypads, Motion & Contact Sensors
Ring Alarm Base Station (non-pro), 2 keypads, 8 contact sensors with 7 original and 1 replacement magnet, and two motion sensors. All tested working. Mounting tape will need replaced on all contact and motion sensors.
2GIG GC3-345 Touchscreen Alarm Panel, Z-Wave With Cell Chip And Wall Adapter
2GIG GC3-345 Touchscreen Alarm Panel White, Z-Wave, with NEW and UNREDGISTERED Cell Chip with a slightly used but UNSWOLLEN Battery. This also comes with the correct transformer needed to power the panel. This item is PERFECT for any alarm salesman who needs equipment ready to go! Capable of over 20 zones and any z-wave equipment. This panel is UNENCRYPTED and will work with ANY alarm systems other than Vivent as they only use proprietary equipment. Completely reset and has the newest firmware version as well. Perfect condition and ready for installation! Please reach out with any other questions. Money back guarantee on this one!
2GIG-UPDV EASY UPDATER TOOL FOR UPDATING GC2 PANELS Free Shipping!
Free shipping!
ablack SG Home Wi-Fi Alarm Device, Gray, Battery Included, A1029
The SG Home Wi-Fi Alarm Device in Gray is a sleek and modern alarm system that offers both convenience and security for your home. With compatibility for iOS and Android devices, you can easily control and monitor your alarm system from anywhere. The device is powered by a reliable 5V voltage source, either through USB or the included battery. Featuring Wi-Fi connectivity, this alarm system allows for easy setup and reliable monitoring of your home security. The SG Home model by ablack is an ideal choice for those looking to enhance their home improvement and security measures.
EPS-11S power supply RE012-16 for Xfinity Home REHP1AZ0 Model AMS177-1202000SU-T
eps-11s power supply for Xfinity Home reho1Az0 Model AMS177-1202000SU
You save $1.50
Minut MT-P2 Smart Home Monitor Sensor (Noise, Motion, Temperature) w/ Power Cord
The Minut MT-P2 Smart Home Monitor Sensor is a white noise sensor that includes an alarm system. It is connected via Wi-Fi and has the capability to detect temperature changes along with motion and noise. With this smart home monitor, users can improve their home security and be alerted to any potential issues in real time. The product is easy to install and comes with a power cord for convenience.
SimpliSafe/Ring Alarm Security Components Wireless Motion Entry Sensors Camera
Type: Door Alarm. Connectivity: Wireless.
You save $7.20
