Victron Energy SolarSense 750 - Wireless Solar Irradiance & PV Health Monitor

The SolarSense 750 tells you what your solar array should be producing — wirelessly, with no wiring at all. It's a fully self-powered irradiance and temperature sensor that clamps to a panel frame, measures the sun actually hitting your array, and reports expected solar output over Bluetooth to VictronConnect or a GX device. Compare expected against what your MPPT is really harvesting and you know immediately whether your panels are dirty, shaded, aging — or perfectly healthy.

Three jobs it does well

• PV health monitoring — see expected vs. actual output at a glance and catch soiling, shading, or a failing panel before it quietly costs you weeks of yield.
• Put surplus solar to work — in off-grid systems, real-time available-power data lets you (or your automation) divert excess PV into a water heater or other opportunity loads once the bank is full, instead of wasting it.
• Site and orientation planning — use it as a pilot device: measure real irradiance and yield potential at different locations, tilts, and seasons on your rig, boat, or property before committing to a future array's layout.

Completely wireless, completely self-powered

An integrated solar cell and a small rechargeable buffer battery (40 mAh / 3.6 V) power the sensor, and data flows over Bluetooth Instant Readout (BLE advertisements) — no cables to run, which makes roof and remote mounting painless. One note from Victron: metal panel frames and roofs can shorten Bluetooth range, so check reception at your intended spot before final mounting.

Works with VictronConnect and your GX device

In VictronConnect, set your array's peak power (STC) and temperature-derating once, then read live status — expected solar output, current irradiance, today's yield, and cell temperature — plus 31 days of trend graphs and 730 days of daily history. On a GX device, enable it under Settings → Integrations → Bluetooth Sensors and the SolarSense appears in the device list, with its readings on the Remote Console and the free VRM portal.

Specifications

• Power: self-powered — integrated solar cell + rechargeable 40 mAh / 3.6 V buffer battery
• Measures: irradiance (0.1 W/m² resolution), estimated solar power (1 W), daily yield (1 Wh), temperature (0.1 °C)
• Data storage: 31 days of trends; 730 days of daily history
• Communication: Bluetooth Instant Readout; VictronConnect and GX integration
• Protection category: IP65 — outdoor-rated
• Operating range: −40 to +185 °F (−40 to +85 °C)
• Mounting: included bracket with alignment ledge clamps to the panel frame; locking screw and two self-drilling screws included
• Size / weight: 4.3 × 3.1 × 1.3 in (110 × 78 × 32 mm); 7 oz (200 g) including packaging

Resources

The full Victron datasheet — including the installation and configuration walkthrough — is in Manuals & Datasheets below on this page. Wondering whether your array is underperforming? Schedule an online consultation with one of our ABYC-certified Advisors.

Warranty

Covered by Victron Energy's 5-year limited warranty. Blue Marine is an authorized Victron Energy dealer and handles the claim process for you — email support@bluemarine.com.

Why buy from Blue Marine

• Authorized Victron Energy Distributor — genuine product, fully supported warranty.
• ABYC-certified Advisors — real help with sizing and system design; book an online consultation.
• Free US shipping over $49 from our Seattle warehouse.
• 60-day hassle-free returns.
• Local pickup available in Seattle, WA.
• Dealer & installer program — apply here for trade pricing.