About Kesen

Kesen designs and manufactures environmental monitoring instruments for air, stack gas, VOC and water quality — documented, method-qualified, and built for the compliance reporting that regulatory bodies and plant environmental teams depend on.

What we build

Stack dust samplers and flue gas analyzers for fixed-source emission testing, ambient air and particulate monitors, VOC samplers and portable gas detection, fuel vapour recovery systems, water quality analyzers, calibration instruments, and optical gas sensor modules supplied to instrument builders under OEM.

Manufacturing, calibration and service under one roof

Production

Sampling heads, gas paths and electronic cores are assembled and functionally tested in-house. High-load low-noise sampling pumps and industrial embedded control platforms are selected for field durability rather than bench performance.

Calibration

Every instrument is calibrated against traceable reference standards before dispatch. The calibration record travels with the unit, listing the measured values, the reference standard used and the acceptance tolerance.

Service and spares

Spare part lists, consumable part numbers and typical service life are published per product family. Long-life wearing parts are stocked, and calibration and repair service is available even for instruments bought through a distributor.

How we specify

Most suppliers quote an instrument to meet a headline requirement. We specify the instrument to meet your method, and then show you the numbers. Every specification we publish carries its measurement conditions — range, ambient temperature, compensation mode, gas and response time — rather than a bare accuracy figure.

Standards and traceability

Our instruments are built against EPA, European and Chinese method frameworks. Where the requirements differ, the Standards & Methods reference states the difference explicitly. Some instruments carry CE and GB 3836 (IECEx-aligned) conformity; we describe these accurately rather than implying a certification we do not hold.

OEM and ODM

Kesen manufactures for other brands — from a logo and nameplate change through to a fully re-engineered platform, including optical measurement cores supplied with firmware, protocol and calibration tooling. MOQ, non-recurring engineering cost, lead time to first article and channel protection are stated before you commit. See OEM & ODM programme.

Get in touch

Quotations, technical questions, OEM projects and calibration service — answered by the engineer who owns that product line. Contact Kesen or request a quotation.