Sertel

AWS Series · Environmental Monitoring Systems

Automatic Weather Station

Solar-Powered, Field-Deployable, and Built for Real-Time Data Over GSM/4G

Automatic Weather Station (AWS) functions as a field-deployable environmental monitoring system that captures and sends meteorological data instantly, covering wind speed, rainfall, soil moisture, and solar radiation. Centered on an industrial-grade datalogger and a completely modular sensor suite, each AWS is set up sensor-by-sensor to meet the precise monitoring needs of a location, be it a farm, an airport, a river basin, or a remote border post.

IP67-Rated Enclosure
-50°C to +70°C Operating Range
24-bit SAR ADC
Modbus & SDI-12 Compatible

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View Specifications
Sertel Automatic Weather Station system with data logger and sensor mast installed in the field

Product Overview

Built to Measure, Log, and Transmit Weather Data Without Supervision

Each Sertel AWS station is built to function unattended in the field for years. A fully programmable datalogger continuously samples every connected sensor, timestamps each reading with GPS or NTP synchronization, and sends the data via GSM, GPRS, or 4G at intervals chosen by the client. A solar panel coupled with a sealed battery supplies power during low-light periods, and a 3.5" or 5" touchscreen display lets field engineers see live readings and modify settings without a laptop.

Since the sensor suite is modular, each AWS deployment can be tailored. For instance, a hydrology station may contain rainfall, soil moisture, and barometric pressure sensors, whereas an agriculture site might add leaf wetness and solar radiation sensors for crop-disease modelling. Sensor selection, transmission intervals, communication protocols, and output data formats are all set to the client's requirements prior to shipping the station. The datalogger, sensors, solar supply, and telemetry hardware all come standardly protected against lightning and overvoltage.

Key Features

Everything an Unattended Weather Station Needs to Survive the Field

Industrial-Grade Datalogger

A fully programmable datalogger samples every connected sensor at a minimum of once per second, with scan rates up to 1000 Hz for fast-changing parameters like wind gusts. A 24-bit SAR ADC, accurate to within ±1 LSB, and 16 single-ended or 8 differential analog inputs keep every reading precise.

GSM / GPRS / 4G Telemetry

Weather data transmits over 4G/LTE Cat 1, GPRS, Ethernet, RS-485, or RS-232, with GPS or NTP time sync keeping every record accurate to the minute. Stations report battery charge and uptime to the data centre daily, so a coverage gap gets flagged before it becomes lost data.

Solar-Powered Autonomy

A 50 W or larger solar panel and a 12 V, 65 Ah sealed maintenance-free battery keep the station running through cloudy weeks, with a dedicated charge regulator guarding both battery and electronics against overcharge and deep discharge.

Rugged & Weatherproof

The datalogger enclosure is IP67-rated and built in powder-coated mild steel, cold-rolled steel, or ABS depending on site conditions. The full system operates from -50°C to +70°C across 0-100% relative humidity, with lightning and overvoltage protection on every connected device.

Modular Sensor Suite

Choose from eight sensor types: temperature and humidity, wind speed and direction (ultrasonic or cup-and-vane), barometric pressure, rainfall, solar radiation, soil moisture, and leaf wetness, and integrate only what the site requires through SDI-12, Modbus, RS-485, or analog interfaces.

Configurable Touchscreen HMI

A 3.5" or 5" touchscreen LCD gives field staff local access to live readings and station settings, while PC-based software handles remote programming, configuration, and full data retrieval from the office.

How It Works

From Field Sensor to Dashboard, Fully Automated

The Sertel Automatic Weather Station turns raw field conditions into decision-ready data without a single manual step. Sensors, datalogger, solar supply, and telemetry work as one continuous pipeline, so the reading on your dashboard is always live, not a delayed upload.

SERTELRain gaugeCloud ServerSMS Alert
  • Sensors
  • Datalogger
  • Data Transfer
  • Cloud Server
  • SMS Alert
  1. 01

    Sensors Capture

    Every connected sensor, from the ultrasonic wind sensor to the soil moisture probe, samples continuously: up to 1000 Hz for fast-changing readings like wind gusts, and at least once per second for everything else.

  2. 02

    Datalogger Processes

    The 24-bit industrial datalogger timestamps each reading against a GPS or NTP-synchronized clock and writes it to non-volatile memory, so no data point is lost even if the connection drops.

  3. 03

    Data Transfer

    Data flows directly from the datalogger to your dashboards through the cloud server, via Ethernet, 4G/LTE, RS-485, or SMS, depending on your setup.

  4. 04

    You Monitor

    Field teams and head-office staff see the same live readings, historical trends, and battery status. The station reports its own online status daily, so a gap in coverage never goes unnoticed.

Applications

Trusted Across Industries That Cannot Afford Missing Data

From precision farms to border outposts, every AWS configuration is matched to the parameters, protocols, and ruggedness its sector demands.

Meteorology
Airports & ATC
Renewable Energy
Agriculture & Precision Farming
Hydrology & Flood Monitoring
Environmental Research
Highways & Smart Cities
Ports & Marine Monitoring
Defence & Border Stations

Modular Sensor Suite

Precision Sensors for Every Meteorological Parameter

Each sensor in the AWS suite is built to hold its calibration in the field for years, not months. Every sensor connects directly to the central datalogger and can be added, removed, or swapped without redesigning the rest of the station, so the configuration below can be treated as a menu rather than a fixed package.

Temperature & Humidity

Model: SEPL300-AWS-ATRHS01

  • Range: -45°C to +80°C / 0-100% RH
  • Accuracy: ±0.1°C with anti-UV radiation shield / ±2% RH
  • PT100 or PT1000 sensing element, IP67
  • Output: 4-20mA, 0-5V/0-10V analog, or Modbus RTU (RS-485)

Ultrasonic Wind Sensor

Model: SEPL300-AWS-UWSD01

  • Speed range: 0-75 m/s standard (0-80 m/s extended)
  • Direction range: 0-359°, accuracy ±2°
  • Solid-state design, no moving parts, low maintenance
  • Output: RS-232/RS-485, wind vectors or U/V components

Cup Anemometer & Vane

Model: SEPL300-AWS-CAWV-01

  • Speed range: 0-70 m/s, accuracy <±0.3 m/s
  • Direction accuracy: ±1°
  • Startup threshold below 0.3 m/s
  • Optional integrated heating prevents icing in cold climates

Barometric Pressure

Model: SEPL300-AWS-BP01

  • Range: 300-1200 hPa
  • Accuracy: ≤±0.1 hPa at mean sea level
  • Long-term stability: 0.2 hPa
  • IP67, operates on 7-30 VDC

Tipping-Bucket Rain Gauge

Model: SEPL300-AWS-MTBRG01

  • Resolution: 0.1 mm per tip
  • Accuracy: ±1% up to 50 mm/hr
  • Corrosion-resistant collector with wire-mesh debris filter
  • Rugged magnetic proximity switch on precision steel bearings

Solar Radiation (Pyranometer)

Model: SEPL300-AWS-SR01

  • Maximum operational irradiance: 4000 W/m²
  • Spectral range: 210-3600 nm
  • Non-linearity: ±1% (100-1000 W/m²)
  • IP67, output as 0-20mV, 4-20mA, or RS-485

Soil Moisture (FDR)

Model: SEPL300-AWS-SM-01

  • Range: 0-100% volumetric moisture content, ±3% accuracy
  • Frequency Domain Reflectometry sensing, instantaneous response
  • Suitable for surface or buried installation
  • IP68, stainless steel probe sealed in epoxy resin

Leaf Wetness Sensor

Model: SEPL300-AWS-LW-01

  • Range: 0-100% wetness, -40°C to +80°C
  • Response time: under 1 second
  • Repeatability: <±3% FS
  • Dielectric sensing, IP65, for dew and drying-cycle detection

Technical Specifications

Industrial-Grade, Programmable, Ready to Deploy

ParameterSpecification
System TypeFully programmable, industrial-grade data logger
Display3.5" or 5" configurable touchscreen LCD
SamplingMinimum 1-second interval, all sensors simultaneously, no data loss
Scan Rate≥100 Hz (up to 1000 Hz or higher for fast sensors)
ADC24-bit SAR, accuracy ≤±1 LSB
Analog Inputs16 single-ended or 8 differential
Digital I/O8 configurable channels: pulse counting, frequency, switch closure, logic
Memory64 MB non-volatile internal, plus ≥32 GB removable storage
InterfacesRS-232 / RS-422 / RS-485, USB, Ethernet (TCP/IP), 4G/LTE Cat 1 TCP, SDI-12, Modbus, NMEA
Power9-36 VDC, solar-compatible
Operating Temperature-50°C to +70°C, 0-100% RH
EnclosureMS / CR / ABS, powder-coated or anodized, IP67
Time SyncGPS, NTP, or network-based synchronization
Solar Panel≥50 W, 21 VDC open circuit, <1 A at 12 VDC nominal

FAQ

Frequently Asked Questions

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