Slime 40047 Tire Inflator Portable Car Air Compressor - Inflate Right

In this review the Slime 40047 Tire Inflator is evaluated as a compact emergency tool for drivers who want accurate, automatic inflation without fuss. The bottom line: it is best for motorists who value a simple, reliable inflator they can set and forget thanks to the built-in Inflate Right Technology. The unit is rugged and straightforward, runs from a 12V accessory outlet, and produces a readable digital pressure display up to 99 psi, so it serves well as a roadside safety device or a garage backup.

Key Features

• Inflate Right Technology: Set the desired pressure on the digital display and the inflator will automatically shut off when that pressure is reached, removing guesswork.
• Digital 99 psi Display: The easy to read gauge shows pressures from 0 to 99 psi so users can verify inflation precisely for standard tires.
• 12V Power: The unit plugs into a vehicle 12-volt accessory outlet with a 10 ft power cord, allowing convenient reach around most cars and light trucks.
• Fast Inflation: From a flat to full for standard tires in about 4 minutes, which makes it practical for emergency roadside use.
• Built for stability and versatility: Rubberized feet keep the compressor steady during use and included adapters let it inflate balls, rafts and other inflatables.
• LED Light: A bright built-in LED light helps when inflating in low light or at night, improving usability in emergencies.

Who It's For

The Slime 40047 is ideal for drivers, commuters and small truck owners looking for a portable inflator that combines accuracy and ease of use; the automatic shut off makes it good for people who do not want to stand and watch a gauge. It also suits those who want a compact, rugged unit to keep in the trunk as emergency equipment.

It is less suitable for heavy duty commercial use or those needing very high pressures above 99 psi, or for users who require a permanently mounted shop compressor. Some buyers seeking lifetime durability or premium connectors may prefer a higher-end model.

Pros & Cons

Pros

• Easy to use digital display with automatic shut off reduces the risk of overinflation.
• Portable 12V operation with a long 10 ft cord provides good reach around most vehicles.
• Fast inflation from flat to full in about 4 minutes for standard tires is very practical in emergencies.
• Includes multi-purpose adapters and a bright LED light for added versatility.

Cons

• Some customers report connector quality issues, so the hose and valve attachments may not feel as robust as the compressor body.
• A few users said units did not work right out of the box, indicating possible early failures in a minority of units.

Specifications

Brand	Slime
Power	12V car accessory outlet
Digital Display Range	0-99 psi
Inflation Time	About 4 min from flat to full for standard tires
Cord Length	10 ft power cord
Extras	LED light, rubberized feet, multi-purpose adapters

Our Verdict

The Slime 40047 is a solid value for most motorists who want a simple, automatic digital inflator to keep in the car for emergencies. Its Inflate Right Technology, readable digital gauge and 12V portability make it a useful backup; buyers should be aware of occasional connector or early-failure reports but overall it represents practical roadside protection at a reasonable cost.

Frequently Asked Questions

Can I use this on bicycle tires?
It is designed for automotive tires and standard inflatables; adapters are included but for high-pressure bicycle tires a dedicated pump is better.

How do I set the desired pressure?
Use the digital display to select a pressure between 1 and 99 psi, start the unit, and it will automatically shut off when that pressure is reached.

Will it run from my truck's outlet?
Yes, it runs from a 12V accessory outlet; check that your outlet and fuse can handle the compressor draw before extended use.