EVM-3

Features:  Direct Reading Particulate Monitor

EVM-4

Features: Indoor Air Quality Monitor

EVM-7

Features: IAQ and Particulate Monitor

AQ5000Pro

Features: Hand Held IAQ Monitor

AQ5001Pro

Features:  Hand Held IAQ Monitor with Tamper Proof Case

Specifications	EVM-3	EVM-7	AQ5000Pro
Available Measurements	Level Min Max Avg STEL TWA	Level Min Max Avg STEL TWA	Level Min Max Avg STEL TWA
Relative Humidity Range	0-100 % non-condensing	0-100 % non-condensing	0-100 % non-condensing
Power Source	Rechargeable Lithium Ion External AC Adapter	Rechargeable Lithium Ion External AC Adapter	Rechargeable Lithium Ion External AC Adapter
QSP II Compatible	Yes	Yes	No
Air Velocity Range	—	—	0-20 m/s (0-3940 ft/min)
Available Options	Air Probe	Air Probe	—
Temperature Range	-10 to 60C (14 to 140F)	-10 to 60C (14 to 140F)	-10 to 60C (14 to 140F)
Available Sensors	Relative Humidity Temperature Particulates	Relative Humidity Temperature CO2 (NDIR) 02 CO H2S NO NO2 HCN EtO CL2 SO2 Particulates Photoionization Detector ppm Photoionization Detector ppb	Relative Humidity Temperature CO2 (NDIR) 02 CO H2S NO NO2 HCN NH3
Tripod Mount	Yes	Yes	—
QSP Compatible	—	—	Yes