GfG Respiratory Air Monitoring 4021 AutoCal System Static Grounding Devices cannot be exchanged and is

cannot be exchanged and is non-returnable) Minimum quantity: 12

helping to identify the owner

Sold in a bag of 1 pair

Temples adjust to three different lengths

GfG Respiratory Air Monitoring 4021 AutoCal System Static Grounding Devices cannot be exchanged and isGfG Respiratory Air Monitoring 4021 AutoCal System is the unit of choice where specific and accurate measurement of carbon monoxide or oxygen levels are required. Our innovative AutoCal system makes calibration and maintenance simple. Additional features include alarm relay contacts, user adjustable alarm points, and low flow alarm indicator. All models may be purchased with or without the 25, 50 and 100 CFM wall mounted filter panels which remove