Calibration Kit includes certified concentration gas cylinders, preset flow regulators, and tubing with connectors which mate with the analyzer and gas cylinder. The tubing assembly includes a fine flow needle valve. Instrumentation grade, certified calibration gas meets FDA standards for USP oxygen analyzers. Each cylinder provides approximately 2000 calibrations. Calibration gas is shipped direct from the gas supplier.
Single stage, constant flow regulators are preset for a flow of 150 ml/min and have quarter-turn on/off valves for quick control of gas flow.

Regulator Valves, two tanks of calibrating gases: 99.99% Oxygen and 21.00% Oxygen (Balance Nitrogen); 
(500 Liter Disposable Tanks: approx 2000 calibrations)
with Cal Kit Tubing Assembly and Black Plastic Carrying Case.