DOOR ALARM best sellers

#1 T110 Smart Door Alarm Tapo T110 Smart Door Alarm, Window Door Alarm Sensor with Real-Time Monitoring, Instant Push Notifications, Create a Smart Home Automation, Battery Included, Works with Tapo Devices Alexa Google Home

£11 on Amazon

#2 Door Alarm Sensor Window TECKNET Door Alarm Sensor, Window Alarms Sensors, 2-in-1 Alarm & Chime, 3-level Volume Control, Door Sensor for Home Security, Wireless Burglar Alarms for House, Shop, Office, Garage (3 PCS)

£10.48 on Amazon

#3 Wireless Door Open Alarm SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Ringtones 5 Volume Level with LED Indicator,Door Alarm for Home Store Office Security When Opens,1 UK Plug-in Receiver 1 Sensor

£13.87 on Amazon

#4 Wireless Door Open Sensor SECRUI Wireless Door Open Sensor Alarm Chime, 400ft Operating Range 52 Chimes Adjustable Volume with Mute Mode LED Indicators Magnetic Door Alarm Sensor for Home Store Office Security

£14.30 on Amazon

#5 Smart Home Security Systems X-Sense Smart Home Security Systems, Wireless alarm systems, Works with Alexa, Supports Mobile App Alerts, Includes 1 Base Station, 4 Door Alarms, 2 Motion Sensors, 1 Keypad, AS08

£64.59 on Amazon

#6 🔥 Wireless Door Sensor TECKNET Wireless Door Sensor Alarm Chime, 1000ft Operating Range, 61 Chimes, 5 Adjustable Volume with Mute Mode RGB Indicators, Magnetic Door Alarm Sensor for Home Store Office Security

£9.99 on Amazon

#7 Freezer Door Alarm with DAYTECH Freezer Door Alarm with Delay 1/2/3/4 Mins When Opend Window Alarm Close Doors Reminder Fridge Door Alarm Sensor or Chime 0 to 120 dB for Door Ajar Warning White 1 Pack

£10.70 on Amazon

#8 Door Alarm Sensor 2 Packs TECKNET Door Alarm Sensor 2 Packs With Remote Control, Window Alarms for Security, 4 Modes, Adjustable Volume, Wireless Magnetic Door Sensor Burglar Alarm Systems for Your Home Security Systems

£16.99 on Amazon

#9 Door Alarm Sensor ChunHee Door Alarm Sensor ChunHee Wireless Door Sensor Chime When Door Opens,Door Entry Alarm Chime for Business/Home/Kids,150M Range,5 Adjustable Volume Door Ringer Alert 2 Sensors + 2 Receiver

£29.99 on Amazon

#10 Freezer Door Alarm FRIDGGI - Freezer Door Alarm with 60s Delay, 2/3/4 Min Reminders, Fridge Door Alarm or Chime, Low/Loud 80 to 110 dB – Compact Size. (White)

£13.99 on Amazon

#11 FIRE EXIT KEEP CLEAR FIRE EXIT KEEP CLEAR A5 pre-drilled plastic sign emergency evacuation door alarm

£1.99 on Ebay

#12 12V 90 dB WARNING BUZZER 12V 90 dB WARNING BUZZER for TRAILERS / INDICATORS / DOOR ALARM BUY 2 RECEIVE 3

£5.44 on Ebay

#13 🔥 12V 100 dB WARNING BUZZER 12V 100 dB WARNING BUZZER for TRAILERS / INDICATORS / DOOR ALARM & MORE USES

£4.37 on Ebay

#14 🔥 12V 100 dB WARNING BUZZER 12V 100 dB WARNING BUZZER for TRAILERS / INDICATORS / DOOR ALARM BUY 2 RECEIVE 3

£4.38 on Ebay

#15 🆕 Fire Exit Door Alarmed HEALTH&SAFETYDIRECT Fire Exit - Door Alarmed - Plastic Sign or Sticker - All Sizes/Materials (EE25)

£1.99 on Ebay

#16 🔥 Door Alarm Contact Sensor SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub Mini to be Compatible with Alexa (1 Pack)

£14.99 on Amazon

#17 Wireless Door Alarm Sensor SANJIE Wireless Door Alarm Sensor Chime for Home Business Shop Office When Entering,Shop Entry Alarm, 800FT Long Range,55 Ringtones 5 Volume Level,1 UK Plug in Receivers 3 Sensor,Black

£23.79 on Amazon

#18 4 Pack Home Security PCTC 4 Pack Home Security Alarms - Window & Door Alarm Sensors for Kids Safety, Burglar Bell Alarm for Home & Office

£9.99 on Amazon

#19 🔥 Fridge Door Alarm with DAYTECH Fridge Door Alarm with Delay 1/2/3/4 Mins When Opend Window Alarm Close Doors Reminder Freezer Door Sensor or Chime 0 to 120 dB for Ajar Warning Silver 1 Pack

£11.90 on Amazon

#20 20Amp @ 12Volt Electrical 20Amp @ 12Volt Electrical Door / Alarm Switch

£5.10 on Ebay