The Vaisala HydroMet™ Automatic Weather Station MAWS201 is a portable AWS for temporary installations, featuring the same design as the Vaisala TacMet Tactical Meteorological Observation System MAWS201M for demanding tactical meteorological applications. Its lightweight aluminium tripod and easy-to-use connectors make it fast to set up. Each leg is adjustable for use on uneven terrain. The MAWS201 is field-proven in a wide range of applications: Meteorological research Civil defense Environmental impact studies Emergency response Fire weather Waste management The basic suite of sensors typically measures wind, pressure, temperature, relative humidity, and precipitation. In addition, measurements can be taken of e.g. multi-level soil temperature, soil moisture, global and net solar radiation, water level, and temperature. Generic and configurable 16 bit A/D conversion is included in case you want to interface your own sensors. In addition to the standard meteorological and statistical calculations, the extended calculation library also includes evapotranspiration, heat index, forest fire index, wind chill and many others. With 5 basic sensors, a solar panel and an internal battery the MAWS201 weighs just 15 kg. It can be transported in two lightweight carry cases made of cellular polypropylene (EPP), a lightweight but very rugged material that provides excellent protection. The cases are equipped with handles, hinges, wheels and latches for padlocks.

Vaisala Data Logger QML201
Processor		32-bit Motorola
A/D conversion		16 bit
Data logging memory
Internal		1.7 MB internal flash memory
Optional		>200 MB on compact flash memory card
Sensor inputs
Analog		10 analog inputs (20 single-ended inputs)
Frequency		2 counter/frequency inputs
Internal channel for PMT16A pressure transducer
Accuracy over operating temperature range		-40 °C ... +60 °C
Temperature (Pt-100) measurements		Range -50 °C ... +80 °C
Uncertainty accross measured temperature		Better than ± 0.06 °C
Voltage measurement
±2.5 V range		Better than 0.04 % reading ± 150 μV
±250 mV range		Better than 0.04 % reading ± 20 μV
±25 mV range		Better than 0.04 % reading ± 6 μV
±6.5 mV range		Better than 0.12 % reading ± 6 μV
Frequency measurements		0.003 % + resolution 241 nsec. (up to 4 kHz)
Common mode range		+5 V / -4 V
Real-time clock		Accuracy better than 20 sec/month
Serial communication
Standard		RS-232 and RS-485
Optional		Two (2) optional plug-in slots for communication modules for increasing the number of serial I/O channels up to 8 pcs
Speed		300 ... 19,200 bps
Parameters		Configurable speed, start bits, data bits, stop bits, parity, XON/XOFF and check-sum
External powering
Voltage		8 ... 14 VDC recommended (30 V max.)
Internal battery		1.3 Ah/6 V
Power consumption		< 10 mA/6 V (typically with 5 basic sensors)
Solar panel/batteries
Panel options		6 W/6 V and 12 W/12 V
Extra back-up battery		QMB102
		Sealed lead acid, maintenance-free
Mains power QMP213		85 … 264 VAC
Mains power QMP201C		85 ... 264 VAC
		with 12 W solar panel and 7 Ah back-up battery
Environmental
Temperature
Operating			–40 ... +60 °C
Storage			–50 ... +70 °C
Humidity			0 ... 100 % RH
Emissions			CISPR 22 class B (EN55022)
Immunity
ESD immunity			IEC 61000-4-2
RF field immunity			IEC 61000-4-3
EFT immunity			IEC 61000-4-4
Surge (lightning pulse)			IEC 61000-4-5
Conducted RF immunity			IEC 61000-4-6
Sensors
Wind		QMW101/110
Pressure		PMT16A
Temperature, relative humidity		QMH101
Solar radiation		QMS101, QMS102, QMN101
Precipitation		QMR101/102
Soil/water temperature		QMT103, QMT110, QMT107
Soil moisture		ML2x
Water level		PR36W, PAA36, QSE102
Physical
Weight example:
Portable system with 3 m tripod		15 kg
(pressure, temperature/humidity and wind sensors; 6 W solar panel)
Basic enclosure
Material		Anodized aluminum
Ingress protection		NEMA 4X, IP66
Dimensions		Diameter 120 mm, height 420 mm
Weight		3 kg
Options and accessories
Communication modules		DSU232, DSI485A, DSI486, DMX501
Mains power supply		QMP213
Solar/mains power supply		QMP201C
Carry cases for MAWS201		QMM110, QMM120
UHF radio modem set		SATEL3ASET-M2