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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
AEM Digital Wideband UEGO GaugeAEM's legendary Digital Wideband O2 AFR UEGO Gauge is a wideband UEGO air fuel ratio controller (AFR) and gauge in one. It unites accuracy, speed and control with an easy to read, digital LED display and sweeping LED "needle" that changes colors as AFR changes from rich to lean. NOTE: The 30 4100 Wideband UEGO Gauge Controller that uses the 4. 2 LSU sensor will be superseded to the 30 4110 Wideband UEGO Gauge Controller that uses the 4. 9 LSU sensor
AEM's legendary Digital Wideband O2 AFR UEGO Gauge is a wideband UEGO air/fuel ratio controller (AFR) and gauge in one. It unites accuracy, speed and control with an easy to read, digital LED display and sweeping LED "needle" that changes colors as AFR changes from rich to lean. NOTE: The 30-4100 Wideband UEGO Gauge Controller that uses the 4.2 LSU sensor will be superseded to the 30-4110 Wideband UEGO Gauge Controller that uses the 4.9 LSU sensor in August 2014. Instructions for the 30-4100 will still be available in the Instructions tab after this change. WHAT IS A WIDEBAND UEGO AIR/FUEL CONTROLLER? AEM's Wideband UEGO (Universal Exhaust Gas Oxygen, pronounced "You-Way-Go") Controllers are powerful, cost-effective tuning tools that allow users to accurately monitor the Air/Fuel Ratio (AFR) of their engine. WHY USE A WIDEBAND AIR/FUEL CONTROLLER? Accurate AFR data is critical when tuning an engine. Running rich (very low air/fuel ratio, excessive fuel) can cause a loss in power, while running too lean (very high air/fuel ratio, not enough fuel) may result in serious engine damage. Using a wideband air/fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency. AEM has a comprehensive line of highly accurate, reliable wideband air/fuel controllers that can help ensure your vehicle is optimally tuned. WHAT IS FREE-AIR CALIBRATION? Some of our competitors require that you frequently perform a free-air calibration procedure to calibrate their O2 sensors. This process involves removing the sensor from the bung while still connected to the controller device, then waving the sensor in the air so it can read atmospheric O2 levels. We use 4.9 LSU sensors in our wideband controllers. Our sensors are individually laboratory-calibrated and never require free air calibration!Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1350 reviews
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Product Reviews
★★★★★ 5
HINT WATER
Flavor Name: Best Sellers Variety Pack, Size: 16 Fl Oz (Pack of 12)
THIS WATER HAS JUST A SMALL AMOUNT OF FLAVOR. IT DOES TAKE A LITTLE GETTING USED TO BUT AFTER A BOTTLE YOU WILL LIKE IT. IF YOU DONT DRINK MUCH WATER TRY THIS YOU MIGHT LIKE IT OVER TAP WATER.
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Reviewed in the United States on May 2, 2026
★★★★★ 4
Excellent if you like flavored water but not seltzer
Flavor Name: Best Sellers Variety Pack, Size: 16 Fl Oz (Pack of 12)
I don't like seltzer but I LOVE this stuff. Minus one star because I think it's pricey. I could drink a bunch of these each day, but I limit myself to one.
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Reviewed in the United States on January 21, 2026
★★★★★ 5
Lack of flavor
Flavor Name: Best Sellers Variety Pack, Size: 16 Fl Oz (Pack of 12)
Not much flavor, hence the name “HINT”
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Reviewed in the United States on May 9, 2026
★★★★★ 3
Soft and subtle flavor
Flavor Name: Best Sellers Variety Pack, Size: 16 Fl Oz (Pack of 12)
Who doesnt love a hint of flavor
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Flavored Water I Actually Crave
Flavor Name: Best Sellers Variety Pack, Size: 16 Fl Oz (Pack of 12), Flavor Name: Best Sellers Variety Pack, Size: 16 Fl Oz (Pack of 12)
I didn’t expect to get hooked on a flavored water, but Hint Water Watermelon has honestly become one of my everyday essentials. I usually get bored with plain water, but this hits that perfect balance, it’s just enough flavor to keep things interesting without feeling fake or overpowering.
The watermelon taste is super light and refreshing, like a subtle hint of a fresh slice rather than that overly sweet candy version you get with a lot of drinks. I’ve tried a ton of flavored waters, and this is one of the few that doesn’t leave any weird aftertaste, which is a huge win for me.
I find myself reaching for it throughout the day, especially when I’m trying to stay hydrated but don’t want soda or anything sugary. It just feels clean and easy to drink. At this point, it’s kind of replaced most other drinks for me. I always make sure I have a few bottles on hand.
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Reviewed in the United States on April 29, 2026