Victron SolarSense 750 — Wireless PV Irradiance Sensor

Ever wondered how much solar you're leaving on the table once your batteries hit 100%? The SolarSense 750 bolts onto your panel frame and tells you exactly what your array could be producing, even when your charge controller is throttling back.

• Self-powered via built-in solar cell and rechargeable 40 mAh / 3.6 V battery (no wiring)
• Measures irradiance (0.1 W/m²), estimated solar power (1 W), daily yield (1 Wh) and cell temperature (0.1 °C)
• Wireless Bluetooth (Instant Readout) to VictronConnect, VRM and GX devices (Venus OS v3.60+)
• Stores 31 days of trends and 730 days of daily history
• IP65 enclosure, -40 to +85 °C operating range
• 110 × 78 × 32 mm; mounting bracket and self-drilling screws included
• EN-IEC 62052-11

Ideal for off-grid baches, tiny homes and boats where surplus PV goes to waste. Use the data (or Node-RED) to switch on a water heater or other opportunity loads, spot shading or panel faults by comparing potential vs actual yield, or trial a site before you design the full system. Note: metal frames and roofs can shorten Bluetooth range.