ZKTESTERS

Air quality measurement apparatus, namely, particle counters; Alcohol breath testing units; Apparatus for analysing gases; Carbon monoxide detectors; Electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality; Environmental monitoring system comprised of meters and sensors that measure pressure, humidity, temperature and includes alarm and reporting functions; Gas detectors for detecting the presence of gas; Gas sensors for measuring gas concentration; Gas testing instruments; Sensors for determining temperature