Review on Optimize Gas Detector Performance with BW Technologies REG 0 5 Calibration Regulator by Donald Waller

The item ordered was exactly what was needed and arrived within a day. However, the Revain packaging was terrible! The Regulator had nothing to protect it and it slammed into the large item crate. This is a precision instrument used to calibrate gas meters (detectors) for my technical security. I hope it still works as it should after traveling around the country.