Features:

• Heavy duty construction and rugged design for long lasting use
• Angled head and rubber coated handle for easy gripping
• Large, easy-to-read LCD display
• Equipped with an automatic shut off to prevent deflation
• Accurate to within 0.05 PSI, reading air pressure from 5-150 PSI in 0.5 pound increments

Rating : - review of the Accutire MS-4021B tire gauge
I've only had the opportunity to use it once and can't comment on it's accuracy because I have no way of knowing. It's easy to use and the readout is bright.