Prosport Wideband Air/Fuel Premium JDM SERIES



Prosport Wideband Air/Fuel Ratio Gauge Premium JDM SERIES - 52mm

Utilising the latest Bosch wideband O2 sensor 5-wire heated LSU 4.9 our gauge now has the widest range 10.0:1 to 20.0:1 AFR (Air/Fuel Ratio) readings on the planet. Read what this means here.

Featuring a Dual colour (Green or White) readout in the centre of the gauge and bar-graph style LED's around the outside of the gauge for immediate reference to AFR.

Three reasons you need an AFR gauge:

‚úÖ To monitor engine performance and optimize fuel efficiency.
‚úÖ To diagnose engine problems by detecting consistently lean or rich mixtures.
‚úÖ To tune modified or high-performance engines for maximum power output while maintaining safe combustion.

Why choose a Prosport Wideband Air/Fuel Ratio Gauge Premium JDM SERIES - 52mm:

‚úÖ Has the Peak / Warning system which is programable for you to set at the desired levels
‚úÖ This gauge has a Black bezel, Black case and is Blacked out when off.
‚úÖ Comes with a high-quality SWISS stepper motor system.
‚úÖ Fits any vehicle whether its Petrol or Diesel
‚úÖ Electrical Wideband Air Fuel Ratio gauge
‚úÖ 0-5 volt output signal for data logging
‚úÖ 52mm Gauge (2" diameter)
‚úÖ Illuminates when wired up
‚úÖ 12-Month Warranty


‚úÖ Electronic AFR Gauge
‚úÖ Wiring harness(Gauge to O2 sensor) 10 feet long
‚úÖ Bosch 4.9 5-wire heated O2 sensor
‚úÖ Weld in Bung
‚úÖ Mounting hardware ( Mounting cup not included)
‚úÖ Instructions.

Scarles has a huge range of Prosport gauges for your vehicle, whether you need to measure your boost levels, water temp or exhaust temperature we have you covered.

Shipping & Delivery

Flat $8 shipping throughout New Zealand on selected items.

Flat Rate shipping is applicable for shipments weighing less than 5kg and volumetrically less than 0.035m3. 

Shipping rates for heavier or bulkier items can be found during the checkout process and apply to individual units. 

If you are purchasing more than one unit or you are unsure of the shipping, please contact us to confirm. Staff will use common sense and will work with you to get your items to you as quickly and cost-effectively as possible.

Same-day shipping is available for Auckland if ordered before 9 a.m.; otherwise, it is the following day. The rest of the North Island takes approximately one day, and the South Island takes 2-3 days. For the rest of the world, contact us for an estimate. 

Returns, Store credit & Replacements

14-day returns policy


We have a hassle-free returns policy, even if you have changed your mind. We accept returns within 14 days after the invoice date, and can exchange with another product. Cash refunds are not issued in this instance. Excludes drop-shipped, clearance or sale items and products built to order. No questions asked if the product is in original condition and with our packaging. Email for refund or return information. 


Any issue or fault with a product must be brought to our attention immediately by contacting us at before any action is taken . We will then consider the best course of action, which may include you returning the product for inspection.

Once the item is received we will assess the fault. All faulty products will be inspected/tested by either the original manufacturer or a professional. This process time frame varies depending on the product. If the product fault is deemed a manufacturers fault a full credit or replacement can be offered.

We do not cover any additional fitment costs, certification costs, extra parts required to make the item fit or work or any loss of time/wages/business occurred. The product provided even if it is stated as a “direct fit” does not imply no additional parts maybe required.


We guarantee our parts for 12 months from purchase. If you believe you have a faulty product, please read our full Returns and Refund policies.

0800 MUDSTUCK (0800 683 788)

For sales queries or to make a collection time send an email to
Or, fill out the box below and we will be in touch within the office hours listed above.

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