Mini Temperature and Depth Logger
The AQUAlogger ® 520 delivers temperature and pressure-derived depth data in a compact, autonomous package. Engineered for versatility, it eliminates the complexity of wired systems and external power, serving as a robust alternative to conventional thermistor strings. Rated to 1,000 m, it’s the ideal tool for oceanographic research, hydrographic surveys, and environmental impact assessments.
Discover the innovative features that set our products apart, designed to streamline your workflow, enhance efficiency, and provide a seamless user experience tailored to your specific needs.
Highlights
- Self-contained temperature and pressure
logging
- Pressure to depth conversion
- Compact wireless design
- Up to 5 years of battery life
- User-friendly data upload
- Flexible Sampling Regimes: Continuous and
burst sampling options with rates up to 1 Hz and
burst averaging
| Pressure sensor |
Piezo-resistive bridge | 2 bar (~10 m), 4 bar (~30 m), 5 bar (~40 m), 10 bar (~100 m), 50 bar (~500 m), 100 bar ~1,000 m) | ±0.2% FS accuracy (including non-linearity, hysteresis, zero offset and end value deviation (corresponds to measured error per IEC 61298-2), 0.01% FS resolution |
| Temperature sensor |
Thermistor | -2 to +35°C standard range | ±0.05°C accuracy, 0.001°C resolution | Time constant – better than 5 seconds to 63% of the change in value (high-speed temperature probe with 1 second time constant also available) |
| Parameters |
Pressure | Temperature | Battery Voltage | Depth (Derived parameter) |
| Memory |
> 250,000 parameters readings in non-volatile FLASH |
| Logging lifetime |
Typically 5 years, depending on regime |
| Data retention |
>10 years |
| Sampling |
Burst or continuous |
| Aquisition rate |
Up to 1 Hz (depending on configuration) |
| Burst averaging |
Bursts may be averaged to a single data value |
| Communication |
Logger communication: Wireless system via separate drop-in reader | Reader communication: USB, bus powered |
| Battery |
3.6V custom lithium ‘AA’ cell -technician replaceable |
| Software |
AQUAtalk® for configuration and download |
| Maximum depth |
1,000 m |
| Material |
Acetal |
| Weight |
190 g (6.4 oz) in air, 41 g (1.5 oz) in water |
| Dimensions |
Diameter: 32 mm (1.3”) | Length: 200 mm (7.9”) |
| Attachment |
Single or double-point configurations featuring integrated screw holes and supplied shackles for rope, cable, or carabiner mounting |