Filters

Under $20 Home Alarm Systems

Shop the best prices on 2,268 great value under $20 home alarm systems. Shopping for home alarm systems is easy with Fruugo, with SALE discounts, offers and savings on Uiamuion, Wuhing, Xpba and more. Buy home alarm systems online safely with Fruugo, with secure payment and fast shipping to New Zealand.

Filters
1 - 32 of 2,268
Perimeter Trip Alarm, Trip Alarm 12 Gauge Camping Trip Wire Alarm Device, Bear Deterrent,Camping Safety Trip Alarm A
$8.95 Save $19.00 RRP: $27.95
Power Failure Alarm,automatic Power Cut Failure Alerter,120db Led Indicator Smart Alarm Warning Siren,power Cut Alarm(needs 9v Battery,not I
$19.95 Save $19.00 RRP: $38.95
Illuminateds 220V Signals Light With Metal Housing For Control Panel Home Appliances And Security Status Systems
$16.95 Save $1.00 RRP: $17.95
Touch Sensor Door Handle Alarm Anti Theft Vibration Window Burglar Alert Home Security Door Alarm An
$20.95
Passage Alarm, Shop Bell, Wireless Alarm System With Motion Detector -ACGIV
$15.95 Save $12.00 RRP: $27.95
2025 Suitable 3-pack Safety Wedge Door Stop Alarm Stopper Blocking Travel Home Security Alert
$15.95 Save $24.00 RRP: $39.95
Portable Travel Door Alarm - 91dB Security Entry Alert with Flashlight for Home Office Apartment Protection
$17.95 Save $51.05 RRP: $69.00
Voice Control Anti Lost Device Whistle Key Finder Keychain Locator Tracer (Red)
$18.95 Save $6.00 RRP: $24.95
Wireless Home Window Door Entry Anti Theft Anti Burglar Security Alarm System Magnetic Sensor
$13.95 Save $34.00 RRP: $47.95
Security Door Alarm, 120db Simple Installation Window Door Alarm 4 Sets Keep Security For Home
$5.95 Save $5.00 RRP: $10.95
- 190 decibel 220 VAC Sirene electronic alarm sound vibration noise
$14.95 Save $15.00 RRP: $29.95
Human Movement Sensor Detector Controller Switch Module
$10.95
Anti-Theft Refrigerator And Freezer Alarm, Door Window Left Open, Reminders At 30 Seconds
$16.95 Save $13.00 RRP: $29.95
95db High-decibel 3-24v 12v Electronic Buzzer Beep Alarm For Arduino Sfm-27 Hfmqv
$12.95
Audio Receiver Module 5.0 MP3 Decoder Board DIY Car Speaker Audio Amplifier Module
$16.95 Save $10.00 RRP: $26.95
DC 24V 110dB Active Buzzer Alarm Beeper with Wire for DIY Electronics
$20.95 Save $12.00 RRP: $32.95
6 Pcs Window Alarms Door Magnets Alarm Household Door Window Alarm Sounds Alarm Household Security Alarm
$20.95 Save $17.00 RRP: $37.95
3-pack Safety Wedge Door Stop Alarm Stopper Blocking Travel Home Security Alert
$8.95 Save $50.05 RRP: $59.00
Wired Mini Siren for Home Security Alarm System Horn Siren 120dB 12V S202412306763
$20.95 Save $53.05 RRP: $74.00
2pcs Automatic Infrared Beam Detector Ir Alarm Sensor Door Light Sensor Burglar Alarm System
$15.95 Save $53.05 RRP: $69.00
Pcs Trip Wire on Reusable Reel (85ft),Trip Wire for Perimeter Trip Alarm 12 Gauge and Trip Wire Alarm
$12.95
Perimeter Trip Alarm 360 Coverage Loud Sound Early Warning Security System for Camping and Securit
$13.95
Ultrasonic Animal Outdoor Bird Repellent with Motion Strobe and Intruder Alarm
$11.95 Save $5.00 RRP: $16.95
Wireless Alarm Detector Infrared Sensor Anti-theft Alarm System Home Security sU FK p202411261332
$21.95 Save $52.05 RRP: $74.00
Automatic Power Cut Failure Alerter LED Indicator Smart 120db Outage Alarm Warning Siren Needs 9V Battery
$9.95 Save $3.00 RRP: $12.95
Door And Window Alarm, Alarm With 130db Siren, 2 Remote Control, Easy To Install, Wireless Home Alarm
$9.95 Save $10.00 RRP: $19.95
Video Doorbell Anti-theft Bracket Door Mount Camera No Drill Ring Safety System Home Security System Accessories
$17.95
Vibration Module DC 12V Sensitivity Time Delay Adjustable Relay Switch Alarm Sensor Module
$20.95 Save $24.00 RRP: $44.95
Loud Wireless Door Alarm Security Pin Panic Keypad Office Garage Shed
$20.95 Save $10.00 RRP: $30.95
120dB Security Water Overloop Leakage Alarm Sensor Water Level Alarm System
$18.95
Door Window Alarm, 90DB Door Alarms for Kids Safety, Door Window Burglar Alarm-Window Pool Alarms for Home Security (2 Pack)
$6.95 Save $5.00 RRP: $11.95
Personal Alarm Self Defense Alarm 125DB Personal Defenses Siren for Child Women Security Portable Al
$13.95