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T: 514-354-2511
T: 1 800 463-4363
F: 514-354-6948
Vaisala HydroMet System MAWS100

Vaisala HydroMet System MAWS100

Product Code:MAWS100

Need more Info? (514) 354-2511 - 1-800-463-4363

  • Compact, robust and easy to- use automatic weather station for basic meteorological and hydrological monitoring
  • Easy and economical to install, maintain and upgrade
  • Field-proven reliability and accuracy in harsh environments
  • Low power consumption for extended remote operations
  • Telemetry options include built-in TCP/IP connectivity, GSM/GPRS, PSTN and serial connections
  • Extensive calculation and data logging capacity
  • Low Total-Life-Cycle Cost

Optimized product for hydro-meteorological monitoring

MAWS100 is a compact system for hydro-meteorological monitoring when a small number of sensors and limited number of telemetry options are required. It is especially designed for unmanned operations at remote sites requiring high reliability and low power consumption. MAWS100 uses a field-proven and highly accurate Vaisala data logger technology with advanced software. MAWS100 is well suited for the Vaisala Weather Transmitter WXT520, and for cellular telemetry.

Ease of use and maintenance

The system architecture is designed to support a broad range of analog and serial sensors. Sensor measurements, statistical calculations, data logging on a compact flash card and versatile data transmissions are performed according to a user-configured setup made with the user-friendly Vaisala Setup Software Lizard. Vaisala Realtime Display Software YourVIEW is included for viewing real-time data as required.
Field-proven reliability of MAWS100 enclosures feature IP66 (NEMA4X) protection. In MAWS100 all sensors and telemetry devices are connected to the system using high quality polyurethane cables with IP68 connectors allowing quick and trouble-free installation.

Power supply options

MAWS100 has a low power consumption, e.g., the average power consumption is only 10 mA when measuring with five basic sensors. In many cases a solar panel with a backup battery of 5 Ah is enough for powering a MAWS100 system. A mains (AC) power supply is optional to power extended systems with frequently sending (powered) telemetry devices.

Advanced telemetry

The system provides interfaces with almost any type of telemetry, terminal, displays as well as smart sensors. With optional plug-in modules the number of serial ports can be enhanced from 2 up to 8 ports, enabling multiple RS-232, RS-485 and SDI-12 connections. MAWS100 can be connected directly to a LAN network using Ethernet Communication Module DSE101 offering a 10/100Base-T Ethernet. Other options for telemetry include GSM/GPRS, PSTN, and serial connections.


MAWS100 is expandable with Digital I/O Unit QMI118 which adds 8 digital outputs and 8 digital inputs for sensor interfacing, power optimizing, and unmanned control functions based on user-defined requirements.

Innovative in installation

MAWS100 can be equipped with innovative installation aids that significantly lower installation and maintenance costs. A single maintenance person can easily and safely tilt the Vaisala Tiltable Masts.


Data Collection Platform with Vaisala Setup Software Lizard Vaisala Data Logger QML201
Temperature Operating -50 ... +60 °C (-58 ... 140 °F)
Storage -50... +70 °C (-58 ... 158 °F)
Humidity 0 ... 100 % RH
EMC In compliance with EN 61326-1 (2001-12)
Electrical equipment for measurement, control and laboratory use - EMC requirements - for use in industrial locations
IP rating NEMA-4X / IP-66
Materials Stainless steel
Mast Tiltable 2/3/4/6/10 m (6/9/12/24/30 ft) pole mast
Enclosure 400(H) x 300 (W) x 200 (D) mm
Weight Enclosure approx 10 kg
Mast with sensors approx 20... 200 kg
Maximum wind speed With one set of guy wires 50 m/s (90 kt)
With two sets of guy wires 75 m/s (130 kt)
Powering 90 ... 264 VAC, 45 ... 65 Hz
8 ...14 VDC recommended (30 VDC max.)
Solar panel 11 W
Internal battery 5 Ah/12 V
Battery regulator Charge/recharge control
Temperature compensation
Deep discharge protection
Simultaneous inputs from solar and AC power allowed

Data validation, calculations and reports

Data quality control Upper / lower climatological limits
Step change validation
Sensor status indication
Statistical calculations Averaging over user set periods
Minimum / maximum values
Standard deviation
Cumulative values
Other calculations Dew point
Frost point
Gust, Squall, wind chill
Sunshine duration

Standard sensor options

Weather transmitter WXT520
Wind speed & direction WM30, WA15, WA25, WINDSONIC, WMT52, WS425
Atmospheric pressure PMT16A
PTB330 with modifications
Air temperature, relative humidity & dew point QMH102
Rain / precipitation QMR102, RG13, RG360, VRG101
Global solar radiation QMS101, SK01-D2, SK08, CMP3, CMP6, CMP11, CMP21, EQ08, EQ08-S
Net solar radiation QMN101
Albedometers QMS101(x2), CMP3(x2), CMA6, CMA11, EQ16
UV radiation / PAR CUV4, UVR1-A, UVR1-B, PAR Lite
Sun duration CSD3, SD4
Ground / water temperature QMT103, QMT107, QMT110
Soil / fuel moisture EHC20, ML2X, QFM101
Evaporation 255 Series
Leaf wetness QLW102
Cloud height & sky condition CL31
Visibility & present weather PWD10/20/12/22, FD12, FD12P, FS11
Snow depth IRU-9429S
Water level PR-36XW/H, PAA-36XW/H, IRU-9429S, QHR102, QSE104, 436BD

Standard communication options

Wireless communication GSM, GPRS
Landline communication RS232, RS485 bus, Fixed line, PSTN, LAN, MODBUS

Data display options

Data displays DD50, WD30(TU), WD50, Pocket / Laptop / Tabletop PC

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