PVMet™ 75 Solar Monitoring Station


The PVMet™ 75 is a compact and lightweight solar monitoring station featuring a Global or Plane-of-Array Irradiance Sensor, one or two Back-of-Panel Temperature Sensor(s), and an Ambient Air Temperature Sensor. Simple to install on any solar project, the PVMet 75 connects to Modbus RTU Communication with an ethernet TCP option available. Ships fully assembled and factory calibrated.

Please note that due to high demand, this item ships approximately 2 days after orders are placed. All orders are filled in the order in which they are received. Order today to receive it soon!


The PVMet series of weather stations is designed for solar operations looking to gain insights into the efficiency and status of their PV system with accurate, bankable data. The PVMet series is simple to use, yet powerful enough to transform a solar installation into a sustainable solution that saves resources and energy. The RainWise PVMet 75 station arrives fully assembled and is fully operational in minutes. All our PVMet stations are SunSpec certified or compliant and feature integration via Modbus RTU or an ethernet Modbus TCP option. Our customizable family of PVMet solutions offers the right fit for any solar project. Contact us for a personalized experience to develop a powerful and reliable solution specific to your business needs.


  • Global or Plane-of-Array Irradiance Sensor
  • 1 or 2 x Back-of-Panel Temperature Sensor
  • Ambient Air Temperature Sensor
  • Modbus RTU Communication
  • Ethernet Modbus TCP option available
  • Ships fully assembled and factory calibrated
  • SunSpec Compatible

Sensors & Options

Global Irradiance or Plane-of-Array Irradiance

Choose between a RainWise Global or Plane-of Array Irradiance Sensor. The RainWise made sensor can be mounted on top of the PVMet 75 for global mode, or it can be mounted to match the PV panel angle with the included bracket for plane-of-array mode. The irradiance sensor comes with 25ft of cable for mounting options.

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 75 supports two sensors. The second may be purchased separately.

Ambient Air Temperature

The ambient air temperature sensor is housed in a passive solar shield for increased accuracy.

Which PVMet Solar Monitoring Station is right for you?

PVMet 75 PVMet 100 PVMet 150
PVMet 200
PVMet 330
PVMet 75 PVMet 100 PVMet 150 PVMet 200 PVMet 330
  Global or/both Plane-of-Array Irradiance Sensor
Global or/both Plane-of-Array Irradiance Sensor ✔ (or) ✔ (or) ✔ (or) ✔ (both) ✔ (both)
  Back of PV Panel Temperature Sensors
Back of PV Panel Temperature Sensors
  Ambient Air Temperature Sensor
Ambient Air Temperature Sensor
  Modbus RTU
Modbus RTU
  Ethernet Modbus TCP Option Available
Ethernet Modbus TCP Option Available
  Additional Irradiance Sensor Option
Additional Irradiance Sensor Option    
  Wind Speed Sensor
Wind Speed Sensor      
  Wind Direction Sensor
Wind Direction Sensor      
  Relative Humidity Sensor
Relative Humidity Sensor        
  Barometric Pressure Sensor
Barometric Pressure Sensor        
  Rain Gauge Sensor
Rain Gauge Sensor        

Multifunctional Professional Weather Monitoring

The PVMet 500 is a completely customizable solution to fit your specific solar monitoring needs.

 PVMet 500 Solar Monitoring and Weather Station

The PVMet 500 Supports:

  • (3) Irradiance Sensors
  • (3) Back-of-Panel Temp Sensors

Sensors & Options
Ambient Temperature (Standard on base model)
Relative Humidity (Standard on base model)
Barometric Pressure (Standard on base model)

Optional Sensors
Ultra Sonic Anemometer (Optional)
Mini-Aervane (Optional)
Rain Gauge/mounted or stand-alone (Optional)


Power Specifications

Power Requirements: 10 to 30VDC at less than 50mA

Operating Environment

Temperature: -40°C to 60°C (-40 to 140°F)

Relative Humidity: 0-100% Condensing F

Irradiance Sensor

Range: 0-1750 W/m2

Accuracy: +/-5%

Cosine Response: 45° +/-1%

Cosine Response: 75° +/-5%

Operational Temperature: -25 to 55°C (-13 to 131°F)

Resolution: 1W/m2

Ambient Air Temperature Sensor:

Range: -40 to 80°C (-40 to 176°F)

Accuracy: +/- 0.4°C (0.72°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 (0.54°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

Max Speed: 9600 bps

Max. Modbus Poll Rate: 100 ms

Termination: 120 ohms (internal jumper enable)


Packaged Weight: 2.26kg (5 lbs.)

Packaged Dimensions: 58.42cm x 25.4cm x 20.32cm (23" x 10" x 8")

RainWise Solar Monitoring Stations Downloads

An overview of the PVmet line of Weather Stations

RainWise Solar Monitoring Stations Manuals

Product Questions