Aqua TROLL 500 Multiparameter Sonde
Current-generation spot-check sonde with smart, interchangeable sensors
Aqua TROLL 500 Multiparameter Sonde
A fully customizable five-port multiparameter sonde with capacity for four interchangeable smart sensors and an antifouling wiper. The direct upgrade path from the Aqua TROLL 400 — same footprint, far more flexibility — and a strong choice for low-flow groundwater sampling with a TROLL Com Plus and the VuSitu mobile app.
- Up to 4 smart, field-interchangeable sensor ports plus a motorized wiper port
- Sensors can be added or swapped in minutes, no factory service required
- Onboard LCD shows battery, sensor, and connectivity status
- Bluetooth pairing with the VuSitu mobile app for calibration and live data — requires a TROLL Com Plus or Wireless TROLL Com (sold separately)
- SDI-12 and Modbus RS-485 for dataloggers, telemetry, and SCADA/PLC systems
- Optional vented pressure sensor for gauged water-level measurements
- Operating temperature: -5 to 50 °C
Available Sensors
| Sensor | Notes |
|---|---|
| Temperature | Included |
| Conductivity | Included |
| Dissolved Oxygen (RDO®) | Included |
| pH / ORP | Included |
| Pressure / Level | Optional, vented or non-vented |
| Turbidity, Chlorophyll-a, BGA-PC, BGA-PE, FDOM, Crude Oil, Rhodamine WT, Fluorescein WT | Optional smart sensors |
| Nitrate, Ammonium, Chloride (ISE) | Optional smart sensors |
Specifications
| Spec | Value |
|---|---|
| Sensor Ports | 5 total — 4 smart sensor ports + 1 wiper port |
| Dimensions | 1.86 in (4.7 cm) OD × 18.145 in (46 cm) length (incl. connector); 23.25 in (59 cm) with bail |
| Weight | 2.15 lb (0.978 kg) |
| Pressure Rating | 150 psi (approx. 100 m / 328 ft) |
| Power | External only — no internal battery |
| Data Storage | None onboard — pairs with TROLL Com Plus / VuLink for logging |
| Interface | SDI-12, Modbus RS-485, Bluetooth (VuSitu) — requires TROLL Com Plus |
| Software | VuSitu mobile app, Win-Situ 5, HydroVu Data Services |
| Wiper | Motorized antifouling wiper included |
| Operating Temperature | -5 to 50 °C (23 to 122 °F) |
