How would this interface with a microsquirt stand alone ecu and on a car pre-obd ii?

Don't get this one. Get the 30-0300, it comes with the complete harness. The 30-0333 is for new cars that can read the sensor off the canbus. Get the 30-0300.

Why does it show pictures of the 30-0311 but states this product is the 30-0344 for “piggy back” capabilities with hp tuners?

Not entirely sure what you mean. My kit came as pictured and works as advertised.

Will this wideband gauge work in “standalone mode”? i have a carbureted vehicle i need to tune and have no use for the obdii connectivity.

Yes. The gauge will display AFR on its own without connecting any of the obdii wiring

Does the digital gauge still work if the obd port is not connected? I would use this wideband for multiple car use not a single install.

Yes. The OBD pass through connector is just to get the information into your data logging software. The sensor reads into the gauge and then sends signal through a separate plug to the OBD port.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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AEM X-Series Wideband UEGO AFR Sensor Controller Gauge with OBDII Connectivity

Product ID: 28770127

Details

Brand
AEM
Item Weight
0.5 kg
Item dimensions L x W x H
6 x 5 x 5
Material
Plastic Metal
Number of Items
1

⚡Fastest wideband AFR response

📊0-5V & RS232 data output options

🔗Seamless OBDII CAN-bus integration

R$4408

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Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Tune Smarter, Drive Faster — The Ultimate Wideband Gauge for the Modern Racer

COMPACT SLEEK DESIGN - Slim 52mm gauge with ultra-thin depth fits seamlessly into any dashboard setup.
VERSATILE DATA OUTPUTS - Supports 0-5V analog and RS232 outputs for advanced data logging and feedback control.
LIGHTNING FAST AFR READINGS - Experience the quickest wideband air-fuel ratio response for precision tuning.
PLUG PLAY OBDII CONNECTIVITY - Effortlessly stream AFR data through your factory ECU CAN-bus—perfect for piggyback or open-source tuning.
CUSTOMIZABLE DISPLAY AUTO DIMMING - Tailor your gauge readout with multiple AFR formats and enjoy clear visibility day or night.

The AEM X-Series Wideband UEGO AFR Sensor Controller Gauge delivers ultra-fast air-fuel ratio readings with seamless OBDII CAN-bus integration, ideal for professional tuners using piggyback or open-source software. Featuring Bosch’s 4.9LSU sensor, customizable display options, and versatile data outputs (0-5V & RS232), it combines precision, convenience, and sleek design in a compact 52mm gauge. Perfect for millennial performance enthusiasts demanding real-time accuracy and effortless installation.

Specifications

ASIN	B01G5Y9YEW
Best Sellers Rank	#118,305 in Automotive ( See Top 100 in Automotive ) #5 in Automotive Replacement Air & Fuel Ratio Gauges
Brand Name	AEM
Customer Reviews	4.5 4.5 out of 5 stars (160)
Global Trade Identification Number	00672713960775
Item Dimensions	6 x 5 x 5 inches
Item Weight	0.5 kg
Manufacturer	AEM Electronic Inc.
Material Type	Plastic Metal
Model	30-0333
Number of Items	1
Part Interchange Info	30-0333
Part Number	30-0333
Set Name	OBD-II
UPC	840879025199 608067031410 672713960775
Unit Count	1 Count

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R$4408

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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