The Additel ADT681-02-CP30-BAR-N-DL is a high-accuracy digital pressure gauge with a built-in barometer and data logger. It features a wide pressure range of -14.5 to 30 psi, a high accuracy of ±0.025% of reading, and a resolution of 0.001 psi. The gauge also has a built-in barometer that measures atmospheric pressure with an accuracy of ±0.01 psi. The data logger can store up to 10,000 readings, which can be downloaded to a PC via the USB interface. The ADT681-02-CP30-BAR-N-DL is ideal for a wide range of applications, including pressure calibration, leak testing, and environmental monitoring.