BetaLOG data logging feature added to BetaGauge PI and BetaGauge PI Reference Class digital pressure test gauges. Low cost application configures gauge to operate in demand ad-hoc mode (field configuration) or download mode (computer configuration) for flexibility in configuring data logging application. BetaLOG/BetaGauge combination allows for simultaneous recording of ambient temperature along with pressure. Six types of data can be collected: interval end, average, minimum, maximum, median and a combination type of average/minimum/maximum.