Nuts and Volts - November 2010

Ultrasonic Antifouling System For Boats

CAR ALARM KITS SOLAR POWERED SHED ALARM KIT

Screecher Car Alarm MKII KA-1813 $17.50 plus postage & packing

The Screecher MK II is very effective and produces an ear-piercing scream that will scare the pants off any would be thief. It is easy to construct and features entry delay with a soft warning tone, exit delay and high intensity deterrent LED.

• Kit includes PCB, siren, all electronic components and two adhesive warning stickers for no extra cost. Short Circuits III Kit - Screamer Car Alarm KJ-8062 $19.25 plus postage & packing A more sophisticated alarm including entry/exit delay, flashing deterrent light, soft warning alarm and deafening internal siren. Thieves will make a hasty retreat!

• Kit includes PCB, siren and electronic components.

• PCB: 132 x 88mm

KC-5494 $17.50 plus postage & packing
A lot of valuable items are stored in sheds or locations
without access to mains power - a boat on a mooring,
for example. What you need is a simple solar powered
alarm that works with a variety of sensors - just what
this kit does. It has 3 inputs, plus all the normal
entry/exit delay etc. Short form kit only - add your own
solar panel, SLA battery, sensors and siren.
Supply voltage: 12VDC
Current: 3mA during exit delay; 500µA
with PIR connected
Exit delay: 22 seconds
Entry delay: 5-30s adjustable
Alarm period: 25s to 2. 5
minutes adjustable

KC-5498 $124.50 plus postage & packing

Many of you know that you can buy $2-5,000 imported
marine growth electronic antifouling systems. Jaycar, with
Silicon Chip have developed a similar system based on
this technology and information in the public domain. This
project uses the same ultrasonic waveforms and virtually
identical ultrasonic transducers mounted in sturdy
polyurethane housings. By building yourself (which
includes some potting) you save a fortune! Standard unit
consists of control electronic kit and case, ultrasonic
transducer, potting and gluing components
and housings. Research reveals only one
transducer is needed for boats under 40ft.
Basically all parts supplied in the
project kit including wiring.

• 12VDC • Suitable for power or sail • Could be powered by a solar panel/wind generator • Price includes epoxies • For more details visit our website www.jaycar.com Instructions are NOT included. Instructions to suit Short Circuits III project - Screamer Alarm Cat. KJ-8063 $1.25. For full color instructions - see Short Circuits Vol III Book. Cat. BJ-8505 $7.50

KJ-8060 $8.75 plus postage & packing

This simple design features a normally open and normally closed input, 40 second siren duration and triggered LED indication.

• Kit includes PCB, buzzer and electronic components.

• 12VDC power required.

• PCB: 105 x 60mm Instructions are NOT included. Instructions to suit Short Circuits III project - Screamer Alarm Cat. KJ-8063 $1.25. For full color instructions - see Short Circuits Vol III Book. Cat. BJ-8505 $7.50

SHORT CIRCUITS III KIT - SIMPLE INTRUDER ALARM

KJ-8080 $9.50 plus postage & packing

A low-cost method of communicating between two rooms. The remote unit is hands free so it‘s also great as a baby monitor.

• Kit includes PCB, speakers and electronic components.

• 12VDC required.

• PCB: 105 x 60mm Instructions are NOT included. Instructions to suit Short Circuits III project - Low Cost Intercom Cat. KJ-8081 $1.25. For full color instructions - see Short Circuits Vol III Book. Cat BJ-8505 $7.50

SHORT CIRCUITS III KIT - LOW-COST INTERCOM SYSTEM

HIDDEN BUG DETECTOR

AA-0216 $30.00 plus postage & packing This unit is basically a broadband receiver. It operates over the incredible bandwidth of 100Kz to 2.2GHz! Clearly it requires the ‘bug’ to connect to the outside world by radio transmission preferably shortwave. It is no good for bugs that use telephone lines.

• Dimension: 100 x 60 x 25mm • Telescopic antenna included

KC-5483 $58.00 plus postage & packing High-security 3-channel remote control that can be used for keyless entry into residential or commercial premises or for controlling garage doors and lights. Up to 16 transmitters may be used with the one receiver so it's suitable for small-scale commercial applications. As it features rolling code / code hopping, the access codes can't be intercepted and decoded by undesirables. The transmitter kit includes a three button key fob case and runs on a 12V remote control battery. The receiver is a short-form kit without case so you can mount it in the location or enclosure of your choice.

• Receiver 12VDC 150mA (1A for door strike use).

Additional UHF Rolling Code Transmitter Kit KC-5484 $23.25 UHF ROLLING CODE REMOTE SWITCH KIT

KC-5458 $37.75 plus postage & packing

This excellent keyless entry system features two independent door strike outputs and will recognize up to 16 separate key fobs. The system keeps the coded key fobs synchronized to the receiver and compensates for random button presses while the fobs are out of range. Supplied with solder masked and silk screen printed PCB, two programmed micros, battery and all electronic components. The receiver requires a 12VDC 1.5A power supply. Some SMD soldering is required.

ROLLING CODE INFRARED KEYLESS ENTRY SYSTEM

KIT OF THE MONTH

Order Value Cost $25 - $49.99 $7.50 $50 - $99.99 $20 $100 - $199.99 $40 $200 - $499.99 $60 $500+ $75

Note: Products are dispatched from Australia, so local customs duty & taxes may apply.

Prices valid until 30/11/2010

POST & PACKING CHARGES HOW TO ORDER

Max weight 12lb (5kg).

Heavier parcels POA.

Minimum order $25.

www.jaycar.com

1-800-784-0263*

+ 61 2 8832 3118* techstore@jaycar.com P.O. Box 107, Rydalmere NSW 2116 Australia • ALL PRICING IN US DOLLARS • MINIMUM ORDER ONLY $25

*Australian Eastern Standard Time (Monday - Friday 09.00 to 17. 30 GMT + 10 hours) Note: 10-14 days for air parcel delivery

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SD/MMC CARD WEBSERVER IN A BOX

KC-5489 $52.25 plus postage & packing

Host your own website on a common SD/MMC card with this compact Web server In a Box (WIB). Connecting to the Internet via your modem/router, it features inbuilt HTTP server, FTP server, SMTP email client, dynamic DNS client, RS232 serial port, four digital outputs and four analogue inputs. Requires a SD memory card, some SMD soldering and a 6-9VDC adaptor. Kit includes PCB, case and electronic components.