Dissolved Oxygen Sensor | Aquaculture Ocean Monitoring | Sofar Ocean
Sofar Ocean Weather from Sofar_Ocean on Vimeo
Playing in picture-in-picture
SPOTTER PLATFORM
Dissolved Oxygen Sensor
Add a compact, long-dwell dissolved oxygen sensor to your Spotter Platform to monitor dissolved oxygen concentration and saturation in real time.
An integrated anti-fouling wiper and ultra-low power solar-rechargeable battery enables extended deployments and continuous access to water quality insights.
Sensor Specifications
| Sensor Specification | Value |
|---|---|
| PME MicroDot Plus (DO + Temperature) | |
| Sensor Type | Optical |
| Dissolved Oxygen | |
| Accuracy | ±5% or ±0.3 mg/L |
| Resolution | 0.001 mg/L (1 µg/L) |
| Range | 0 – 150% saturation |
| Temperature | |
| Accuracy | ±0.1°C |
| Resolution | 0.001°C |
| Range | 0°C – 35°C |
| Oxygen Response Time | ~30s to 90% step change |
| Sampling Rates | 5 s to 24 hr interval, user-set |
| Calibration Method | 96-point factory calibration |
| Maximum Depth | 50 m |
| Power Supply | Spotter’s Li-ion battery (solar-rechargeable) |
| Size (Dia. x Len.) | ~76 mm × 203 mm |
| Weight | 0.34 kg (< 0.75 lb) |
| Interface Standard | Bristlemouth-native (plug-and-play) |
Anti-Fouling Wiper
This submersible, self-contained device uses a rotating brush to sweep the sensor surface, reducing organism growth and preventing biofouling. After each pass, the brush retracts to avoid interference, ensuring accurate, continuous monitoring.
Deployment & Best Practices
Configuration Options
Ideal for moored coastal deployments with one Spotter or a network. Integrate up to two more devices (e.g. pressure/current) per Smart Mooring (max 3 total).
Mounting and Maintenance
Mount sensor horizontally; avoid sediment or bubble interference. Rinse sensor with fresh water after retrieval. Clean sensing foil periodically; verify calibration annually.
Remote Configuration & Controls
Direct control via Spotter Dashboard, binary/ASCII commands, and Sofar remote support.
Data Access & Analysis
Spotter Dashboard View real-time data and insights
API Access Retrieve data programmatically with our secure API
Onboard Storage Download data via SD card for offline analysis
Transmission Satellite and cellular options