FAST Dual Wideband Kit with LCD display and datalogging.
Two wideband sensors with narrowband outputs for ECUs that can't handle wideband signals.
LCD display shows both channels in real time.
Full details here:
http://www.fuelairspark.com/fas/dyno-wi ... ensorhtml/
Price from FAST
£300 plus £60 insured shipping, plus import duty and VAT of £87 = £447.Price
£250 inc. delivered. Bargain.