This vintage compression tester from Niehoff is the perfect addition to any automotive tool collection. With a maximum PSI of 300, it's ideal for testing the compression of your vehicle's engine. The T-47 model is a reliable and durable option for diagnosing and troubleshooting issues related to your vehicle's engine compression. The brand Niehoff is known for their high-quality automotive tools and this compression tester is no exception. It's easy to use and provides accurate readings to help you diagnose any issues with your vehicle's engine. Whether you're a professional mechanic or a DIY enthusiast, this compression tester is a must-have for any automotive tool collection.