Litemeter Voltage Pro – Analog Irradiance & Temperature Sensor

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Litemeter Voltage Pro – Analog Irradiance & Temperature Sensor

Litemeter Voltage Pro is a analog photovoltaic pyranometer (or silicon irradiance sensor).

It measures solar irradiance and temperature and ideal for monitoring medium-sized PV systems. Manufacturing and calibrations are IEC 61215, IEC 60904-2, 60904-4 and 60904-10 compliant.
This PV pyranometer is ABB approved for stringboxes, EVO dataloggers and for some inverter models.

Physical features

The Silicon PV cell is laminated with E.V.A.. Moreover it has a high performance anti-reflective glass for PV modules. It guarantees the maximum precision in the measurement of irradiance and in addition, it measures 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 thus allowing readings that are independent of cell temperature.


We calibrate all Litemeters Pro with our Class A Silicon Reference Cell. This last 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

Litemeter Voltage Pro is suitable for monitoring medium-sized systems for its reliability and precision.

Key features

  • Temperature compensated
  • Two 0-10V outputs: irradiance and cell temperature
  • Mounting bracket
  • Aluminum body
  • Error less than 3.5%
  • 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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