PVmet 150 Precision Utility Grade

Thermopile Precision Adjustable Irradiance Sensor

The PVmet 150 is our Precision Utility Grade model featuring a precise second-class thermopile pyranometer for bankable data. It is mounted on a tilting bracket to provide global or plane-of-array measurements. The PVmet 150 is affordable, sturdy, and simple to install making it feasible for utility grade PV monitoring projects. Ships fully assembled and factory calibrated.

Availability: In stock

The PVmet series of weather stations are designed to meet the monitoring demands of cutting-edge solar power generation. The PVmet™150 is our Precision Utility Grade model for users who require the highest caliber sensors for exceptionally accurate data. The PVmet™ 150 is available with ISO 9060:1990 and WMO second-class, first class and secondary standard pyranometers. All our PVmet stations are SunSpec certified or compliant and feature integration via MODBUS RTU interface using RS-485. Our growing family of PVmet solutions offer the right fit for any PV monitoring project.


  • Adjustable Solar Irradiance Sensor for Global or Plane-of-Array Monitoring
  • 1 or 2 Back-of-PV Panel Temp Sensor(s)
  • Ambient Air Temperature Sensor
  • Modbus RS-485 Communication
  • Ethernet Modbus TCP Option Available
  • Additional Irradiance Sensor Option
  • Ships fully-assembled and factory calibrated
  • SunSpec Certified

Sensors & Options

Ambient Air Temperature
Housed in a passive solar shield.

Global Irradiance or Plane-of-Array Irradiance
The irradiance sensor is adjustable and can be set to provide global irradiance (when horizontal) or plane -of-array irradiance when installed to match the PV panel angle.

Back-of-Module Temperature
These sensors are attached to the back of the PV panel using thermal conductive adhesive tape. They provide accurate panel temperatures, an important parameter for efficiency monitoring. One sensor is shipped with each system. The PVmet™ 150 supports two sensors. The second may be purchased separately.


The PVMET-150's compact, lightweight design makes installation quick and easy. Various mounting options are available, including the RainWise Mono Mount. The PVMET-150 is supplied with a detachable mast section that can bolt to an existing structure.

All electrical connections are made using screw terminals. Standard sensors are factory installed.

As a user/installer the only connections required are power, communications and external BOM sensors. Removing the front cover accesses the connections. The cover is secured with 4 screws.


The firmware in the PVmet™-150 can be updated through the RS-485 port using a simple PC application. This feature ensures that the PVmet™-150 can be kept up to date with the latest available firmware. In addition, RainWise can provide certain OEM firmware customization. This includes register configuration, specific defaults and protocols.

The PVmet™-150 can also be customized to support customer specific sensors. This service is only available to volume OEM customers.

Power Requirements
10 to 30 VDC at 50mA

Operating Environment
Temperature: -40° to 80°C (-40° to 176°F)
Relative Humidity: 0-100%, Condensing

Irradiance Sensor(Kipp & Zonen CMP 3)
IS0 9060: 1990 Classification Second Class
Sensor Range: 0 to 2000 W/m2
Accuracy: +/-5%
Spectral Range: 285 ~ 2800 nm
Response Time to 95%: < 18 s
Response Time to 63%: < 6 s
Non-Linearity (0~1000 W/m2): < 1%
Non-Stability (Change/Yr): < 1%
Cosine Response 45°: +/-1%
Cosine Response 75°: +/-5%
Operational Temperature: -25° to 55°C (-13° to 131°F)
Resolution:1 W/m2

Ambient Air Temperature Sensor
Range: -40° to 80°C (-40° to 176°F)
Accuracy: +/-0.3°C (.54°F)
Thermal Time Constant: 30 sec.
Resolution: 0.1°C

Back of Module (BOM) Temperature Sensors
Range: -40° to 80°C(-40° to 176°F)
Accuracy: +/-0.3°C (.54°F)
Thermal Time Constant: 270 sec.
Cable Length: 7.62m (25 ft)
Resolution: 0.1°C

RS-485/422 Serial Port
Mode: 2-Wire Half Duplex
Connector: 4-Position Screw Terminal ( A(-), B(+), Signal and Earth Ground)
Max Speed: 9600 Baud
Termination: 120 ohms (Internal Jumper Enable)

Polyvinyl Chloride, Acrylonitrile Butadiene Styrene, Stainless Steel,Anodized Aluminum, Lexan®, Delrin

Lead-free RoHS Compliant

Packaged Dimensions: 6 cm x 20.3 cm x 20.3 cm (10.25" x 8" x 8")
Packaged Weight: 0.8 kg (1 lb. 12oz.)

2 Years

RainWise Solar Monitoring Stations Downloads

An overview of the PVmet line of Weather Stations

RainWise Solar Monitoring Stations Manuals

Product Questions