Maritime safety equipment innovator, Martek Marine, has released a MED-certified portable gas detector that can be easily and safely recalibrated onboard, providing tamperproof certification to meet the many regulations governing detector calibration. The Paris and Tokyo MOUs and oil major criteria require calibration records to be kept for all fixed and portable gas detectors onboard. Martek’s Marine 4 is supplied with a self-certification/calibration station which provides the user with fail-safe automatic bump testing and calibration.