Overview
Reliable water level monitoring, simplified.
The Ott FMS Flood Monitoring System with PLS 500 combines the Ott SensorLink 1000 with the Ott PLS 500 pressure level sensor to provide a compact, connected solution for continuous water level and temperature monitoring.
Designed for flood monitoring, stream gauging, stormwater and other surface water applications, the system combines sensing, data logging, cellular communications and power supply in an integrated monitoring solution. Wireless configuration through LinkComm and Bluetooth Low Energy (BLE), together with remote cellular communication, simplify installation, operation and access to critical measurement data.
The PLS 500 provides highly accurate pressure-based water level measurements with an accuracy of ≤ ±0.05% full scale and measuring ranges up to 100 m. Integrated position, temperature and humidity sensing provides additional diagnostic information to help validate measurements and sensor condition remotely.
Benefits
Accurate Water Level and Temperature Measurements
Measure water level and temperature reliably with the Ott PLS 500 pressure level sensor. A high-accuracy ceramic pressure cell and durable stainless-steel housing support dependable long-term field operation, while integrated diagnostics provide additional confidence in measurement quality.Efficient Resource Allocation for Swift Response
When minutes matter, timely notifications allow operators to react when water levels exceed defined thresholds and initiate downstream actions before conditions become critical.
Designed for Simple Installation and Use
The FMS combines the pressure level sensor, datalogger, modem and power supply into one integrated monitoring solution. Its compact, modular design makes it easier to deploy monitoring stations without requiring extensive technical experience.
Remote Monitoring and Configuration
Cellular communication enables remote data transmission and system monitoring, while LinkComm provides straightforward configuration and operation. Local access is available via Bluetooth Low Energy from compatible mobile devices and computers.
Reliable and Robust for Long-Term Deployment
The PLS 500 incorporates a ceramic pressure cell and stainless-steel probe housing, along with position and internal humidity monitoring. The FMS communication unit provides IP67 protection for demanding field environments.
Specifications
Technical Attributes
| Parameters Measured | Water level, water temperature |
| Measurement ranges | 0–10 / 20 / 40 / 100 m (32.8 ft / 65.6 ft / 131.2 ft / 328.1 ft) |
| Accuracy | ≤ ±0.05% full scale |
| Water temperature | –40 ... +70 °C (–40 °F to +158 °F) |
| Temperature Accuracy | ±0.05 °C (±32.09 °F) |
| Memory | 28 MB, approx. 1,000,000 values |
| Local communication | Bluetooth Low Energy 5.0, up to 10 m free line of sight |
| Data transmission interval | 1 minute to 1 week |
| Power | Battery or solar configuration |
| Protection | IP67 |
| Cellular communication | 4G/2G or LTE-M depending on configuration |
| Telemetry Options | LTE-M / Cat M1, 4G/2G where available |