VuLink® is a data logger and global cellular telemetry device. It is easy to set up, works from anywhere and delivers long-lasting power. So, you never have to worry about your equipment or your data.
VuLink® is part of the most complete monitoring solution available. Instrumentation, telemetry and software work together within In-Situ’s shared system to make it easy to collect, access and manage your data.
VuLink® keeps even your most remote locations connected and reporting 24/7.
Free global cellular data – VuLink® offers free cellular data for life, right out of the box, no set up required. VuLink® Cellular offers wide cellular coverage across multiple networks, future-proofed for decades, while ensuring backwards compatibility
Icons clearly indicate battery life, instrument connection, network connection and HydroVu® connection. In-Well Mounting saves time and money by installing VuLink® inside a 2-inch/50-mm well with standard well caps and casings to keep it secure and hidden from view. HydroVu uses VuLink’s GPS to automatically locate and mark devices on maps, synching devices and locations, increasing data quality, and making it easier to track free-floating buoys.
Datasheet
Technical specification
Power & Battery
- Battery Types Supported: 3 x D-cell (1.5V – 3.6V) Alkaline, Li-SOCl₂ (Lithium Thionyl Chloride), LiMnO₂ (Lithium Manganese Dioxide)
- Battery Life:
- Up to 12 years (LiMnO₂, 24-hour reporting)
- Up to 3 years (Alkaline, 24-hour reporting)
- Clock Accuracy: <1 minute drift per year; synchronizable to network time for ±1 second accuracy
Communication & Connectivity
- Cellular Network:
- 4G LTE Category M1 (LTE-M) / NB-IoT (Narrow Band)
- 2G fallback support
- Global LTE Bands: B1, B2, B3, B4, B5, B8, B12, B13, B18, B19, B20, B28
- Protocols: HTTPS (HydroVu), SMS (alarms), FTP, SFTP, FTPS
- Data Provider: Built-in free global roaming; optional 3rd party SIM via 4FF slot
- GPS: Built-in, up to 3m accuracy
- Antenna Connector: SMA-M
- Remote Setup: Supported via Bluetooth Low Energy
Physical & Environmental
- Dimensions: Length: 485 mm (19.1″), Diameter: 47 mm (1.85″)
- Weight: 1.0 kg (2.2 lbs) with batteries and carabiner (excluding antenna)
- Materials: Ryton (housing), PVC (battery cover), Titanium (Twistlock connector, eyebolt), 316 Stainless Steel (carabiner), Silicone (keypad cover), Brass (SMA antenna connector), Polycarbonate (label), Viton (O-rings)
- Operating Temperature: -20°C to 50°C (Li-SOCl₂ / LiMnO₂), 5°C to 40°C (Alkaline)
- Storage Temperature: -20°C to 60°C
- Ingress Protection: Device: IP68; System: Up to IP68 per antenna specification
Instrumentation & Data Logging
- Supported Protocols: Modbus over RS-485, SDI-12, Pulse (low/high frequencies up to 40 kHz)
- Connectors: 1 In-Situ Twistlock (supports multiple instruments via Rugged Cable Splitter, TROLL Net Hub, or Load-Bearing Universal Adapter)
- Simultaneous Connections: Up to 8 instruments (total maximum of 75mA provided to connected instruments at 16V)
- Barometric Compensation: Built-in for automatic compensation of level readings
- Barometer Accuracy: ±1 hPa
- Alarms: Configurable based on instrument readings and device parameters
- Memory: 512 MB (soldered to circuit board)
- Logging Rate: 1 minute to 7 days
- Transmission Rate: 5 minutes to 7 days
Setup & Configuration
- Wireless Setup: Supported via Bluetooth Low Energy
- Logging Options:
- Default VuLink Log: Hourly readings from internal and connected sensors; daily uploads to HydroVu
- User-Created VuLink Log: Customizable readings and upload schedules via VuSitu app
- User-Created Instrument Log: Instrument-specific logging without cloud upload; data retrieval via VuSitu app
Materials & Build
- Housing: Ryton
- Battery Cover: PVC
- Twistlock Connector & Eyebolt: Titanium
- Carabiner: 316 Stainless Steel
- Keypad Cover: Silicone
- Antenna Connector: Brass (SMA-M)
- Label: Polycarbonate
- O-Rings: Viton