ProfessionalSunshine radiationGlobal RadiationModbus RTU
16131.5-Modbus · PYRANOMETER




  • professional meteorological applications
  • building automation
  • photovoltaic systems
  • industrial meteorology

“First Class” Pyranometer

16131.5 digital pyranometer series is a range of high-accuracy digital solar radiation sensors.

It is “First Class” according to the WMO guide and ISO 9060:1990 standard and “Spectrally Flat Class B” in the 2018 revision.

Version 00.16131.501030, equipped with an on-board heater, is compliant in its standard confi guration with the requirements for “Class B” PV monitoring systems of the IEC 61724-1:2017 standard.

The 16131.5 measures the solar radiation received by a plane surface, in W/m2, from a 180° field of view angle. Various outputs are available, both digital and analogue, for ease of integration.

  • best measurement accuracy in “First Class”
  • improved response time
  • with 00.16131.501030’s on-board heater: compliant with IEC 61724-1 Class B in its standard configuration
Professional Line
Measuring range:
0...3000 W/m2 · global radiation within a range of 285...3000 nm
Directional answer:
< ± 20 W/m2
0.01 W/m2
Spectral sensitivity:
< ± 3 % (0.35...1.5 μm)
Response time:
< 10 s (95 %)
Inclination error:
< ± 2 %
< ± 1 % (100...1000 w/m2)
Modbus RTU
Range of application:
-40...+80 °C
Power supply:
24 VDC (8...30 VDC)
Power consumption:
< 48 mW (at 12 VDC)
Measuring elements:
Measuring principle:
thermal difference measurement
max. Ø 92 mm · approx. H 95 mm
Protection class:
approx. 0.64 kg
ISO 9060 „First Class“
Accessories (order separately):
32.14567.060010 sensor cable, 15 m, 4 pole, M12 plug
32.14567.060000 sensor cable, 12 m, 4 pole, M12 plug
met[LOG] with met[APP] · Data loggermet[LOG] with met[APP] Data logger

The data logger met[LOG] and its browser app met[app] quickly and easily transfer your weather data into your network (LAN). The met[LOG] has an autoconfiguration via plug & play for the uncomplicated commissioning of the serial LAMBRECHT meteo sensors.

Browser App met[APP]

The browser app which is integrated in the met[LOG] for easy visualisation of the current meteorological data in your network. Platform-independent on your PC, tablet or smartphone.

  • Displays the instantaneous values of your LAMBRECHT meteo station
  • Exports the measured values stored by the met[LOG]
  • Configures the met[LOG]

Features and advantages:

  • Real-time access to measurement data via integrated web server, visualised in your browser with met[APP]
  • met[LOG] calculates trends and patterns, and automatically performs corrections based on altitude and air pressure
  • Thanks to its digital outputs the met[LOG] immediately issues a warning or raises an alarm
  • Plug & play: Auto-configuration by push of a button allows full working capability within seconds
  • Various combinations are possible: 7 interfaces allow connection of 4 analog and 3 serial sensors
Read more
Ser[LOG] · Data loggerSer[LOG] Data logger

The Ser[LOG] collects your weather data (wind, precipitation, air temperature, relative humidity, air pressure and radiation) in a single place and provides real-time visualization. The Ser[LOG] Commander management app gives you maximum freedom to customize your measurement tasks. 


  • Collect and process up to 60 measured values with Modbus RTU
  • Up to 32 Modbus TCP connections with sensors from other manufacturers
  • Alarm system for 10 warning channels using built-in and external relays (e-mail, SMS)
  • Extensive sensor library
  • Formulary and free formula parser
  • Interference-proof due to high-quality, shielded aluminium housing
  • User-friendly with free access to all connections and controls
Read more