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EMS-250

Solar Radiation Sensor

Photoelectric solar radiation sensor measuring 0 to 1800 W/m², with an anti-dust dome and built-in level.

Solar radiationPhotoelectricRS4854-20 mALow power
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EMS-250 Solar Radiation Sensor
Environmental Monitoring
Family
EMS Series
Category
Environmental Monitoring
Range
0 to 1800 W/m²
Spectral band
400 to 1100 nm

01Overview

Engineered for the field

A photoelectric solar radiation sensor that measures the energy received across the full hemisphere (180° field of view) in the 400 to 1100 nm band, from 0 to 1800 W/m² at 1 W/m² resolution. A high-transparency dust cover with an anti-adhesion surface treatment keeps sensitivity high in dusty conditions, and the built-in level with an adjustment handwheel makes on-site setup quick. Power draw is just 0.06 W on RS485, and 4 to 20 mA, 0 to 5 V and 0 to 10 V outputs are also available. It is a cost-effective choice for photovoltaic plants, weather stations, smart agriculture and building projects.

02Key Features

What makes the EMS-250 different

01

Full-hemisphere view

Measures solar energy across a 180° field of view.

02

Anti-dust dome

High-transparency cover with a surface treatment that resists dust build-up.

03

Quick levelling

Built-in level and adjustment handwheel for fast on-site setup.

04

Ultra-low power

Draws only 0.06 W on RS485, ideal for solar-powered stations.

03Technical Specifications

Detailed specifications

Overview

Range
0 to 1800 W/m²
Spectral band
400 to 1100 nm
Field of view
180° hemisphere
Output
RS485, 4 to 20 mA, 0 to 5 V, 0 to 10 V

Performance

Accuracy
±10% (100 to 1200 W/m², zenith angle 0 to 60°)
Resolution
1 W/m²
Response time
≤10 s
Non-linearity
Under ±3%
Annual stability
≤±3%

Power and Environment

Power supply
10 to 30 V DC (RS485), 7 to 30 V DC (analog)
Power consumption
0.06 W (RS485), 0.6 W (analog)
Operating temperature
-25 to +60 °C

04Applications

Built for these use cases

  • Use case 01

    Photovoltaic power plants

  • Use case 02

    Weather monitoring stations

  • Use case 03

    Smart agriculture

  • Use case 04

    Building and construction projects

Industries

Deployed across these sectors

UtilitiesSmart CitiesEnergyEnvironmental Monitoring

05Resources

Datasheets, manuals and technical documents

Documents are shared on request. Tell us which file you need and our team will send it to you.

  • EMS-250 Datasheet

    Datasheet

    Request

  • EMS-250 User Manual

    User Manual

    Request

06Related products

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