Search Criteria


Products meeting the search criteria

Sort By:  
3-24V Piezo Electronic Tone Buzzer Alarm 95DB Continuous Sound (buzzer 3-24VDC)


 Piezo Electronic Tone Buzzer Alarm 95DB for Continuous Sound


  • Color: Black
  • Buzzer Type: Piezoelectric
  • Sound Pressure Level 85 dB
  • Rate Voltage: 12V DC
  • Operating Voltage: 3 - 24V
  • Max Current Rating 11mA
  • Frequency 3900±500Hz
  • Drive Method: Drive Circuit Built in
  • Mounting Holes


  • 1 x 85DB Piezoelectric Buzzer Alarm


R19.90  Inc VAT
Recessed Door Window Contacts Reed Security Alarm Switch (5) (reed switch recessed(5))
No external power supply, connect to wired alarm control panel GND and N.C ports directly!
Specifications :

Material Shield: Anti-fire ABS
Connecting Mode: N.C.
Rated Current: 100mA
Rated Voltage: (VDC)100
Operating Distance: More than 15mm, Less than 25mm
Rated Power: 3W

Package includes :

5 x KERUI Wired Door Switch
R79.90  Inc VAT
SONOFF® PIR2 Wireless Dual Infrared Motion Sensor (Sonoff PIR sensor)
Dual infrared
Ultra-low power microprocessors
Double temperature compensation technology
Robust and durable, suitable for homes, offices, sheds, garages etc.
Easy installation and set-up.
Transmit distance: 150m (open)
Voltage: 3V
Standby current: ≤9μA
Alarm current: ≤10mA
Wireless frequency: 433.92MHz
Wireless Transmit Code: 1527Mhz (default)
Detection distance: [email protected] 25℃
Detection angle: 110 degrees
Maximum coverage area: 12m*12m
Alarm indicator light: on for 3 seconds
Working environment: indoor
Tamper switch: normally closed
Anti-white light intensity: 10000Lux
Product Size:120mm x 62mm x 46mm
Battery type: 2 x AA batteries(not included)
Weight: 120g

Use this unit with the Sonoff wifi bridge
Package includes:
1 x SONOFF® PIR2 Wireless Infrared Detector
Use this PIR for a DIY alarm system or occupancy control. Perfect for your home automation project.
R269.90  Inc VAT
SONOFF® DW1 433Mhz Door Window Sensor Compatible With RF Bridge (Sonoff door contact)
Ultra-low power magnetic dedicated microprocessor
Supports wireless frequency of 433.92MHz
200m wireless transmit distance
Built-in antenna provided
Less than 1μA quiescent current
Support Battery: 12V 23A (MN21/23 battery)
Wireless frequency: 433.92MHz
Protocol: EV1527
Quiescent current: ≤5μA
Emission current: ≤10mA
Operating environment: -10℃-50℃ (14℉-122℉)
Product Size: 77mm x  49.5mm x 18.8mm
Battery: length 27mm, diameter 10mm, this model doesn’t come with a battery
Weight: 45g

Use this unit with the Sonoff wifi bridge
Package includes:
1 x SONOFF® DW1 433Mhz Door Window Sensor

R149.90  Inc VAT
Zinc Alloy Alarm Garage/Window Rolling Door Reed Switch (Garage reed switch)
1. High quality
2. Simple installation
3. The metals electroplates outer shell, double-loop circuit design, performance stable.
4. Circuit is open when magnet is near the switch.
5. Special use for metal doors, anti-magnetic interference design.
Housing material: Zinc Alloy
Rated Voltage: 100V
Operating Distance: 50-70mm
Contact Type: Normally Closed
Size: 10.6 x 3.8 x 1cm/ 4.2" x 0.15" x 0.4" (L x W x T)
Cord Length: approx.45cm/ 17.7"
Package includes: 
1 x Door Magnetic Switch Alarm
4 x Screws

R249.90  Inc VAT
12V Alarm Red security Flashing Light (red flash light alarm)

Rated voltage: 12V DC
Rated current: 120mA
Strobe rate: 90s / minute
Diameter: 7.2cm
Height: 4cm
Lamp cover color: red


Led strobe flashing light
Suitable for security, status etc...
Also ideal for construction site as a warning light


This product only has a flashing light, no sound.

Package includes:

1 x Alarm Signal Lamp
2 x Bases
4 x Screws
R159.90  Inc VAT
DC 110db 12V Compact Siren (12V Red Siren)
A true high quality, Heavy Duty, All Metal Air Raid Siren Horn.
3 inch Diameter and features a rugged construction, easy mounting.
Applications Vehicle: Fits on Any 12 Volt Vehicle, such as Car, Truck, SUV, Motorcycle, Yacht, Boat,Vehicle, Bus,etc.
All metal body, durable use.

Voltage: 12V
Color: Red
Size: 77mm x 85mm x 75mm
Material: Metal
Outside use: Yes
Wattage: 30W
Sound Level: 110dB

Package includes:
1 x Siren Horn
Great for your DIY alarm project
R239.90  Inc VAT
SONOFF SNZB-03 ZigBee Motion Detect Sensor Alarm Alert Notification Works with SONOFF ZigBee Bridge eWeLink APP (zigbee PIR)

Note 1: Battery not included (3V CR2450)
Note 2: SNZB-03 must be used with Zigbee Bridge.

If your concern is not only about home security but about using motion to turn on or off the lights, well, SONOFF SNZB-03 might be the answer for you.

This ZigBee motion sensor is an extra-handy smart device for placing anywhere in your home to detect motion and trigger alarms. That means the sensor will send an instant alert notification to your mobile phone whenever the motion is detected if this security system is armed. If you have a SONOFF ZigBee Bridge, you can connect the sensor to it to activate Wi-Fi devices, not merely ZigBee devices. For example, you can set a scene for your living-room light so that it will automatically turn on when you walk through the living-room.

Boasts 110°view field and 6m detection rang and you can early receive an alert message of someone’s presence, accordingly taking measures to reduce the possibility that your house is threatened. Share control is available for multiple users to check and monitor your home together. Easy and tool-free installation, 3M adhesive installation significantly saves your time. Powered by a battery which makes it convenient to stick it on any place that you want to monitor.

You will get a notification of low-battery level when the battery life reaches 10% remaining.

Create smart scenes to activate Wi-Fi smart devices.
Detect movement and trigger alert messages.
Turn on/off the devices through your movement.
Work with the SONOFF camera to monitor your home.
6m detection distance and 110°viewing angle.
Share the sensor to your family to together keep eyes on your home.
3-month history records check.
Low-battery notification.
Quick peel and stick installation

Battery: 3V(CR2450)
Wireless protocol: Zigbee (IEEE 802.15.4)
Material: PC
Dimensions: 35mm x 39mm x28mm

R244.90  Inc VAT
SONOFF SNZB-04 ZigBee Wireless Door/Window Sensor Notification via eWeLink APP Smart Home Security (zigbee SNZB-04)

Note 1: Battery not included (3V CR2450)
Note 2: SNZB-04 must be used with Zigbee Bridge.

The wireless door/window sensor is essential for knowing who is coming in and out of your home, so it is most often used as part of smart security system.

SONOFF SNZB-04 is a ZigBee two-in-one wireless door/window sensor that can be put on your door or window to tell you with an alert notification if your door or window is opened or closed, adding an extra layer of security to your home. The sensor provides you the possibility to create a scene linkage of ZigBee and Wi-Fi devices. Both the opening and closing status of the door/window are synced on your mobile phone, no longer to think back whether the door/down is off or not. It is really useful and can help you turn on or off the light in the action. Works with SONOFF ZigBee Bridge in harmony, you can set a scene to get your hallway lighted immediately when the door is opened.

Its application can also extend to wide areas like drawers, garage doors, blinds, etc. Just stick it anywhere two things connect and it is always safe even if you don’t keep watch on it. Share the sensor with your family to give them an ability to quickly control and monitor your home together. Simple installation for easier setup. Peel and directly stick it on the targeted place or object, a smart security system is ready for you.

Remind you when the door/window is open and closed.
Sync the opening & closing status of door/window on APP.
Can make ZigBee and Wi-Fi devices keep linkage.
Control the light with an action.
Support adding the SONOFF camera to view what happened at your home.
Share control makes other users control the connected device quickly.
3-month history records check .
Low-battery notification.
Simple peel and stick installation.

Battery: 3V(CR2450)
Wireless connection: Zigbee 3.0

Magnet: 32mm x 15.6mm x 13mm
Sensor: 47mm x 27mm x 13.5mm

R244.90  Inc VAT
Alarm Project Kit (KT alarm kit)
Product Description

This kit can be used to make a shed or room alarm when mounted on the top of a door, drawers or any other object with a moveable opening. It can also be used by replacing the micro switch with a magnetic door contact.

A micro switch acts as a trigger mechanism and is armed / disarmed by a separate sliding switch. The door's movement is detected by a micro switch mounted onto a door or object with a lid. A timer provides an entry delay during which the system can be disarmed by the slide switch, whilst a separate timer silences the alarm after two minutes. Both of these timers are implemented via a 556 dual timer IC.

The alarm can be further enhanced by using a simple key switch for arming / disarming or by replacing the micro switch with a magnetic door contact switch to activate it. The board, battery pack & buzzer can be placed into a box designed by the student.


  • Can be enhanced with a key switch to arm/disarm.
  • Can be enhanced by replacing the micro switch with a magnetic door contact switch.
  • Entry delay for disarming.


  • 1 x PP3 Battery Clip Lead (Heavy Duty).
  • 1 x 4xAA Battery Cage with Clip.
  • 1 x Miniature DPDT Slide Switch.
  • 1 x NE556 Dual Timer IC.
  • 1 x IC Socket 14 Pin.
  • 1 x Piezo Buzzer (with Drive).
  • 4 x Capacitor, Ceramic, 50V, 10nF.
  • 2 x 100uF Cap Low Leakage.
  • 3 x 10KΩ Resistor.
  • 1 x 220KΩ Resistor.
  • 2 x 1.2MΩ Resistor.
  • 1 x Micro Switch with Medium Lever.
  • 1 x Red 5mm Diffused LED - 275mCd.
  • 1 x 330Ω Resistor.
  • 1 x Alarm Project Kit PCB.

Possible applications include:

  • Adding an alarm to a cookie/biscuit tin.
  • Adding an entry alarm to a door.


  • PCB Length: 51mm.
  • PCB Width: 41.5mm.


  • 4 x AA Batteries.


This kit is supplied in a simple grip seal bag.

Note: This is an educational kit and should not be used to secure anything of value.

R144.90  Inc VAT
Per Page      1 - 10 of 10
  • 1