Gas Sampling Pump Gas Detected Chemical Substances Product Type Detection Tube Pump Kit Power Source Manual/Non-Powered Includes (3) Rubber Inlets Lubricant Features Adjustable Sampling Volume Calibrated Scale Directly Printed On The Tube Each Detector Tube Has Its Own Quality Control Number Printed On The Tube Long Shelf-Life On-Site Measurements For Use With All Nextteq Gas Detection Tubes Housing Material Plastic Overall Length Not Applicable Series GV-110