Paroscientific, Inc.

SUOMINET MET PACKAGE FEATURE COMPARISON
FEATURES	PAROSCIENTIFIC, INC.		VAISALA
FEATURES	MET3A	MET3	PTU200
Integrated Package Barometric Pressure, Temperature, Humidity	Yes	Yes	No
Environmental Enclosure Outdoor or Indoor Use	Yes	Yes	Optional
Plug & Play, Single Cable Installation	Yes	Yes	No
5-year warranty including a 3-year stability warranty	Yes	Yes	No
Free Calibration First factory performed recalibration is free	Yes	Yes	No
Software Support Free set-up, logging, recalibration software	Yes	Yes	No
Pressure Port Design Minimizes Wind-Induced Errors	High-Performance Tuned Port	Gill Port	Open Pipe
Barometric Pressure Resolution	Better than 0.001 hPa	Better than 0.001 hPa	0.01 to 0.1 hPa
Barometric Pressure Accuracy	Better than 0.08 hPa	Better than 0.10 hPa	0.15 to 0.25 hPa
Fan-Aspirated Ventilation Minimizes Solar Radiation Errors	Yes	No	No
Temperature Sensor Accuracy	Better than ± 0.1 deg. C	Better than ± 0.5 deg. C.	± 0.2 Deg C.