Google er din ven når vi snakker Stack i hvert fald.
http://www.stackltd.com/professional_speedometer.htmlSpeedoen koster 210£ hos Demon Tweeks, og sensoren noget med 65£.
Men fra linket ovenfor kan man læse følgende:
Citat:
Q. Is a speed sensor included with the Speedometer?
A. No, but it has been designed to work with most OEM vehicle speed sensors and aftermarket speed pulse generators on the market today. We recommend our ST668 wheel speed sensor.
The speedometer is designed to operate with an electrical speed sensor. The speed sensor signal range must be between 310 and 248,500 pulses/km (500 and 400,000 pulses/mile). Any speed sensor or electronic module that meets the following two conditions can be used:
1. Pulse rate generated is proportional to vehicle speed.
2. Output voltage within the ranges listed below:
• Hall effect sensor, 3-wire (5 to 16V)
• Sine wave generator, 2-wire (1.4 VAC min.)
• 5V Square wave (CMOS)
Jeg ved ikke lige om "Sine wave generator" dækker en VR-sensor, men ellers kan du jo se at en hall-sensor kan gøre arbejdet.
For VDO gælder at de kan bruge både Hall og induktiv (VR).
Hvis det skal være lidt "stock looking", så tænker jeg i øvrigt at VDO er lidt mere konservativt designet.