The Vyaire Medical 001951 is a Ventilator Thermometer that uses a liquid column for precise temperature measurement. This thermometer is designed to be compatible with ventilators and is equipped with a 7/8 inch outer diameter and 22mm long arm. It comes with a 004086 U/Adapt-It connector, which allows for easy and secure attachment to the ventilator. The AirLife Tempo2 feature ensures accurate and reliable readings. This product is sold in a case of 50, making it ideal for medical facilities that require a large supply. Please note that this thermometer is intended for single-patient use.