Instant alert wireless driveway alarm

This has to be one of the most useful alarms we have seen for a long time. It comprises two units, a transmitter and a receiver. The transmitter is battery operated and designed to be site outdoors across a driveway or area you wish to protect. The built in PIR will detect people and cars moving across in front of the detector, effective range about 6-7 metres.

In the event of the unit being triggered the transmitter will send a radio signal to the receiver which can be sited up to 100m away!

The receiver is also battery operated but can be used with a plug in powers supply if required.

The receiver will emit a loud alarm sound for approx 5 secs when a signal is detected from the transmitter. It also features am LED that will remain illuminated until the reset button is pressed.

Transmitter measures 130x80x60mm

Receiver measures 130x80x40mm  both units are designed to wall or post mount.

Receiver runs on 3 AA batteries, transmitter on 1 PP3.

We have tested these units outside (ie no obstructions, line of sight) and achieved a maximum range of 100m. This range will reduce considerably if you introduce obstructions (eg walls etc)

Motion detecting croaking frog

Somewhat unusual item, probably best suited to your garden or possibly on your desk. The 'frog' will croak when someone (or something) moves in front of it. Quite large (200x220x90mm) and supplied with a Lilly pad for total authenticity!! 2xAA batts required.

pir security switches from just £4.39

These brand new swivel mounting PIR units will switch up to 2 kilowatts. Adjustable sensitivity, light level and time delay (9 seconds to 10 minutes), 15m detection range, mains operated, waterproof.

PIR PCB

Click to enlarge

<>Just in are these bargain PCB's fitted with a standard PIR detector and control electronics. 12vdc operation. If you use one of these units 'as is' it gives you a thin beam detector. We played about with some units like this before and got some very long range performance.Pyroelectric Infra-Red Detector Information V. 1.01

This module is designed to pick up thermal infra-red signals caused by a moving heat source.
Typically, this would be a human, however this type of sensor will respond to any moving heat source with well defined edges.

The outputs of the module are :-

1) On-board "detect" LED
2) Open Collector output (see diagram)
3) High impedance output (see diagram)

The module has an on-board voltage regulator which enables it to operate from 10 up to approx. 14 volts without damage. 12 volts is the recommended supply.

It is important to note that the open collector output is taken from just before the LED driver transistor ; this means that with no resistor between the output and Vcc the LED *will not work* ! This resistor should be 1000 ohms for 12V operation. (see diagram) In its present form, this sensor has limited range (typically a few cm) and is highly erratic due to swamping. It has been discovered that adding a non-conductive cylinder to the bare sensor, the range may be extended.
This must be of a material which is opaque to thermal infra-red; the approximate dimensions are 13mm length by 5mm diameter . The approximate range of the modified sensor is 10 feet over a 10 degree viewing angle; this could be extended over a wider range with a Fresnel lens but with reduced sense distance. The connections for the PCB are shown in the attached diagram. The on-board output stage is not capable of driving a large (>40 mA) load, however the output from pin 3 may be fed via an inverter (using 4000 series logic) to other circuitry. One idea is to use the "narrow beam" facility to act as a door counter ; this would be simple to implement by wiring the output to a decimal counter. Another idea is to use the sensor to automatically ring a doorbell . As we have got rather a lot of these we are selling them in packs of 4 for just £6

12v operated smoke bombs!

Exclusive to Bull Electrical is this new kit that will fill a room completely full of smoke in a few seconds! Not only that but you can trigger the unit with a simple 12v DC supply!

Type 1

This includes a 12v triggering module and 20 smoke canisters. Each canister will fill a large room in a very short space of time!

20 smoke canisters 1 trigger module

Type 2

This includes a smaller smoke canister than type 1, more suited to equipment 'fires'? etc.

20 small smoke canisters 1 trigger module.

Type 3

This includes a 12v triggering module and 3 smoke canisters. Each canister will fill a large room in a very short space of time!

3 smoke canisters 1 trigger module.

Don't drop one in somebody's barbecue!

	SolarGuard dial-up wire free burglar alarm system  A totally wire free multi-zone security system with amazing 2 way dial-up features	The SolarGuard SG4000 system is a feature packed security system for any home, office, or utility building. It is factory set for you and basic security functions can be achieved in a matter of minutes requiring only a simple keypad code change. 2 way dial up allows you to set the system to call your mobile or office (4 locations max.) should the system be activated. You can also dial-up at any time your alarm and check status and listen in to your property.
	• Incredibly easy to install - this alarm system can be up and running in around an hour • Radio technology for a secure installation and easy operation • Solar technology provides an extremely long operational lifespan of 10 years + • No messy wiring around your home • Dial in and listen to activity in your home at any time (pin code protected for privacy) • Know imediately if a burglery is taking place at your property • 7 Zone operation	System Range  20-30 Metres (Range Extender ET-01 available)   Security Code 4 Digit (10000 Combinations)     Other Batteries(Included) Siren (6V Sealed Lead Acid), Panel (12V Sealed Lead Acid)     Zone behaviours Instant, Entry/Exit, Walkthrough, Chime and Panic     Site Code 9 Bit (512 Combinations)     PIR Detection Range 12m     Battery Life Sensors: 1-3 Years, Control Panel and Siren: 3 Years     Frequency 418MHz     Sensor Batteries (Included) PIR (2x9V PP3), MDT (12V A23), Remote (12V A23)

	SolarGuard Multi-Zone Wirefree Alarm System  A Complete 100% wirefree multi-zone alarm system	Our SolarGuard Multi-Zone control panel based system is the best of the bunch combining the latest zoning abilities with a totally wire-free operation. Incorporating the revolutionary MU5850 control panel means you also get flexible operation including the ability to exit through other doors, and a dedicated chime zone - a great feature for protecting doors, garages and sheds at night. As well as twin sirens fitted to the external SolarGuard it provides a built-in siren on the control panel which features entry/exit warning beeps and a useful audible test mode for checking detectors.
	• All batteries included • 1 Wirefree Door/Window contact included • 2 PIR detectors included - and add as many as you like! • Convenient handheld remote control included • 7 Zone Control Panel with battery back up • Solar power keeps the bellbox battery charged for up to 3 years • 100% Wirefree • Fully upgradable	System Range  20-30 Metres (Range Extender ET-01 available)   Security Code 4 Digit (10000 Combinations)     Other Batteries(Included) Siren (6V Sealed Lead Acid), Panel (12V Sealed Lead Acid)     Zone behaviours Instant, Entry/Exit, Walkthrough, Chime and Panic     Site Code 9 Bit (512 Combinations)     PIR Detection Range 12m     Battery Life Sensors: 1-3 Years, Control Panel and Siren: 3 Years     Frequency 418MHz     Sensor Batteries (Included) PIRs (9V PP3), MDTs (12V A23), Remote (12V A23)     Operating Modes Disarm,Arm,Part Arm,Battery Check (Tamper Disable)

	Complete Wireless Alarm System An installers favorite - this alarm incorporates fully wirefree sensors with a traditional hard wired bellbox.	For those who cannot resist the temptation to go wireless this system incorporates both wired and wireless technology. Whilst the detectors are fully wireless and the control panel operates from remote control, the external siren unit retains that traditional wired connection. Upgrade this system with the ST01 Xenon Strobe Unit and it latches and remains flashing in the event the system is triggered - just like the wired systems.
	• 2 PIR detectors included - and add as many as you like! • Convenient handheld remote control included • 100% Wirefree Sensors • 7 Zone Control Panel with battery back up • 1 Wirefree Door/Window contact included • All batteries included • Wired bellbox has full tamper protection and battery backup • Fully upgradable	System Range  20-30 Metres (Range Extender ET-01 available)   Security Code 4 Digit (10000 Combinations)     Other Batteries(Included) Siren Backup(6V Sealed Lead Acid), Panel Backup(12V Sealed Lead Acid)     Zone behaviours Instant, Entry/Exit, Walkthrough, Chime and Panic     Site Code 9 Bit (512 Combinations)     PIR Detection Range 12m     Battery Life Sensors: 1-3 Years, Control Panel and Siren: 3 Years     Sensor Batteries (Included) PIRs (9V PP3), MDTs (12V A23), Remote (12V A23)     Frequency 418MHz     Operating Modes Disarm,Arm,Part Arm,Battery Check (Tamper Disable)

	100% Wirefree Alarm System  Get your home protected easily and quickly with our remote control operated wirefree alarm system	SolarGuard is the original solar powered wire free alarm AEI Security and was first registered with the UK patent office in 1996. You choose how you want to configure your system and don’t worry about changing your mind later because weve designed this kit to be upgraded to full control panel operation. Buy this system and you are on the right road to protection regardless of what you choose in the future.
	• 100% Wirefree - no wiring at all! • Add as many wirefree sensors as you require • Fully expandable to control panel operation using the MU6450TX • Can be set up in under 1 hour • Complies with British Standards BS6706 and BS6799 Class 1 to Class IV Part A • Full tamper and radio jamming protection • No extras needed - ready to set up out of the box • Can be set up in under an hour • Remote control operated for ease of use • Comes complete with PIR movement detector, 2 magnetic door contacts and remote control	System Range  20-30 Metres (Range Extender ET-01 available)   Security Code 4 Digit (10000 Combinations)     Other Batteries(Included) Siren Back-up: 6V Sealed Lead Acid     Zone behaviours Instant, Entry/Exit, Walkthrough and Panic     Site Code 9 Bit (512 Combinations)     PIR Detection Range 12m     Battery Life Sensors: 1-3 Years, Siren: 3 Years     Sensor Batteries (Included) PIRs (9V PP3), MDTs (12V A23), Remote (12V A23)     Frequency 418MHz     Operating Modes Disarm,Arm,Battery Check (Tamper Disable)

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