Litemeter Voltage Pro – Analog Irradiance & Temperature Sensor

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Litemeter Voltage Pro is a analog photovoltaic pyranometer (or silicon irradiance sensor) for measuring solar irradiance and temperature, ideal for monitoring medium-sized photovoltaic systems. Manufacturing and calibrations are IEC 61215, IEC 60904-2, 60904-4 and 60904-10 compliant. Litemeter Voltage Pro product is ABB approved for stringboxes, EVO dataloggers and for some inverter models.

Physical features

The Silicon photovoltaic cell is laminated with E.V.A. and a high performance anti-reflective glass for photovoltaic modules. It guarantees the maximum precision in the measurement of irradiance and provides a measurement of the indicative temperature of the photovoltaic modules next to it. It has an anodized aluminum housing for high durability, practical mounting bracket with screw clamp and a UV-resistant cable. This irradiance sensor has two signal outputs in voltage: one for solar irradiance and one for temperature. The solar irradiance signal is temperature compensated; allowing readings that are independent of cell temperature.


All Litemeters Pro are calibrated with our Class A Silicon Reference Cell, itself periodically calibrated by the Dakks accredited ISFH Institute and a HP34410A Multimeter.
Note: the terms irradiance sensor, photovoltaic pyranometer, reference cell and solarimeter are interchangeable. On this site we will use photovoltaic pyranometer. To learn more click here.

Common uses

Its reliability and precision make Litemeter Voltage Pro suitable for monitoring medium-sized systems.

Key features

  • Temperature compensated
  • Two 0-10V outputs: irradiance and cell temperature
  • Mounting bracket
  • Aluminum body
  • Error less than 4%
  • IEC EN 61215 par.10,11,12 compliant (product ageing)
  • Calibrations according to IEC 60904
  • Order code that allows you to obtain the most suitable sensor for your climate zone


PRODUCT LM1-10V PRO is a solar irradiance & temperature sensor (photovoltaic pyranometer)
REFERENCE STANDARDS IEC 60904-2; 60904-4; 60904-10;
Output 2 analog channels
Input range Irradiance: 0 ÷ 1200 W/m2
Spectral range 0.3μm ÷ 1.1μm
Temperature -30 ÷ +85 °C
Output signal Irradiance 0÷10 V for 0÷1200W/m2 factory calibrated
Temperature 0÷10V for -20 ÷80°C(V=1.84 +0.092xT[°C]) guaranteed by design
Output precision Irradiance ± 3.5%
Temperature ± 1.5 °C
Response time <100 milliseconds
Sensor type Solarimeter with two analog channels
Supply External 12 ÷ 30V DC
Encapsulant Glass + E.V.A. + Poliester
Wire 3 m or 60cm with M8 4 pin connector
Connector 4 + 1 GND loose pins ( or M8 4 pin)
Dimensions 98x55x25 mm without fixing bracket


Producer Datalogger / Inverter model
FIMER/ABB ABB with PMU expansion board
SMA SMA Data Manager M + I/O Modules of third parties
SMA SMA inverters with MD.SEN-40
Meteocontrol BlueLog
FIMER/ABB EVO datalogger
Kaco Kaco Inverter

Protection against lightening

Protects irradiance sensors and photovoltaic monitoring equipment from lightening induced overvoltages. Discover Blitz-Wall!


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