KIN-TEK’s Span Pac™ “I” Industrial Gas Standards Generator uses Trace Source™ permeation tubes to produce precise, accurate calibration gas mixtures with concentration traceable to NIST. Concentrations from low ppb to over 1000 ppm are dynamically blended as needed, directly from the pure component compounds. No interstage mixtures are required. The Span Pac™ I is easy to use, safe, and specifically designed for field mounting with process analyzers. It is housed in a rugged NEMA 4 specification cabinet.