Harvey, Main & Co., Ltd. 英商泰慎洋行

Civil Engineering Testing Equipment	Medical Instruments	HVAC, Occupational and IAQ Instruments
Engineering Training Equipment	Sensors and Data Loggers	Measuring Instruments
Miscellaneous

HVAC, Occupational and IAQ Instruments
All Catagories	Laboratory Gas Detectors	Air Flow Measurement Instrument
Indoor Air Quality (IAQ) Instrument	Digital Manometer	Occupational Instrument
Noise Monitoring Instrument	Digital Thermometer	Coating Thickness Gage
VOC Meter	Ultrasonic Water Flow Meter
TSI Alnor - IAQ-Calc Indoor Air Quality Meters 7515	TSI Alnor - IAQ-Calc Indoor Air Quality Meters 7525	TSI Alnor - IAQ-Calc Indoor Air Quality Meters 7545
Si-AQ Comfort - Indoor Air Quality Monitoring	Si-AQ Pro - Indoor Air Quality Monitoring	Si-AQ Expert - Indoor Air Quality Monitoring