Quality Products
When purchasing from Zefon you can rest assured that you will be receiving only high quality products; products you can count on to work time and time again.

Dependable Customer Service
At Zefon, we pride ourselves on providing friendly and knowledgeable customer service. When calling Zefon (during normal business hours) you can rely on reaching someone who is happy to help you with the questions you may have.

Competitive Prices
Zefon strives to operate in the most efficient manner in order to offer competitive prices.

Large Selection
We offer our products in a large number of configurations to enable compatibility with most all equipment.

Fast Delivery
Our large network of distributors are strategically located to provide you with fast delivery of the Zefon products you need from a local or regional warehouse.

ISO 9001:2015 Certified
Zefon has been certified to be in compliance with the ISO 9001:2015 standard for design and manufacture of air sampling products, air sampling cassettes and media and air sampling equipment for potentially explosive atmospheres. Distribution of sampling media and cassettes, sampling pumps and calibrators, portable instruments and gas detection equipment.

ISO 9001:2015 is an international quality standard accepted by the majority of the world. It applies to all quality-related activities in an organization and helps ensure customers` needs are met. ISO 9001:2015 is intended to establish, document, and maintain a Quality Management System through ensuring the output quality of a process. ISO 9001:2015 certification is visible evidence of a company`s commitment to quality that is valued, accepted, and understood throughout the world. View Zefon`s ISO 9001:2015 Certificate

Zefon TSI - Model ZBP-200-CAL - Primary Calibrator Kit for Zefon Bio-Pump - Datasheet