The LEO-1 is a battery operated digital pressure gauge capable of an ultra-fast 5-kHz measuring rate to measure and display fast-rising pressure spikes in hydraulic or pneumatic applications. The max/min function displays either the maximum or minimum pressure measured during each test period. The LEO-1 can be built with either ¼-in. NPT or G ¼-in. pressure connection and is available in pressure ranges up to 15,000 psi.