Zeitronix - Your Ultimate Tuning Partner

SEMA Award Winning Zeitronix ZR-1 Gauge
3-Digit Wideband Air/Fuel and Lambda Gauge

  • Stylish, machined, brushed aluminum or anodized black bezel and slim enclosure
  • High contrast LED display
  • Large 0.4" (10mm) digits - available in Blue or Red
  • Slim design for flexible gauge mounting options
  • Programmable to startup as an AFR or Lambda gauge
  • Peak and Hold feature

    The Gauge works with all versions of the Zeitronix Zt-2 Wideband AFR meter and Datalogging Systems  and Zt-3 Wideband AFR Meter. The ZR-1 plugs into the Zt-2 or Zt-3 DATA port and can be used while datalogging.
    Clean and easy plug and play installation: power and display information is provided using one wire connecting to the Zt-2 or Zt-3 DATA port. The ZR-1 cable length is 5 ft (1.5m) and can be extended if needed.



The ZR-1 gauge is only 6/8" (19mm) thick. The back of the gauge is completely flat with cable hidden in a cavity and can be surface mounted almost anywhere inside the car cabin using a piece of Velcro or double sided tape. The ZR-1 base allows the gauge to be mounted in a standard 2 1/16 (52mm) gauge pod. For additional mounting options the package includes 2 set screws and 2 nuts (4-40 screw size).  Check out the gallery for gauge installation pictures.

ZR-1 gauge dimensions:
Base diameter     2" 1/16 (52mm)
Bezel diameter    2" 1/2   (62mm)
Thickness            0.75"      (19mm)
Digit height         0.4"        (10mm)

Side View
ZR-1 Side View
Back View
ZR-1 Back View
Red Digits / Silver Bezel
ZR-1 Red Digits / Silver Bezel
Blue Digits / Silver Bezel
ZR-1 Blue Digits / Silver Bezel
Red Digits / Black Bezel
ZR-1 Red Digits / Black Bezel
Blue Digits / Black Bezel
ZR-1 Blue Digits / Black Bezel
Dual Channel Wideband AFR setups available
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Download ZR-1 Instructions