Performance
• Measurement method: Ultrasonic, non-contact• Resolution: 1 mm
• Maximum range: 5 m (MB7389/MB7369) or 10 m (MB7388/MB7368)
• Minimum reported distance: 30 cm (near-field clamped) (MB7389/MB7369); 50 cm (near-field clamped) (MB7388/MB7368)
• Transducer frequency: 42 kHz
• Condensation Self Cleaning Models: MB7589/MB7569/MB7588/MB7568
Variants and update rate
• MB7389 / MB7369: ~6 Hz typical read rate• MB7388 / MB7368: ~5 Hz typical read rate
• MB7589 / MB7569: ~0.5 Hz typical read rate
• MB7588 / MB7568: ~0.5 Hz typical read rate
Outputs (select by model)
• RS232 serial (MB7369/MB7368/MB7569/MB7568)• TTL serial (MB7389/MB7388/MB7589/MB7588)
• Analog voltage (scaled)
• Pulse-width (1 µs per mm)
• Optional: 4–20 mA output available at purchase (high-voltage models only; replaces standard outputs)
Electrical
• Operating voltage:3.0–5.5 V DC (low-voltage models)
5.5–36 V DC (high-voltage models / 4–20 mA option)
• Current requirement: Low average power consumption; 3.1 Current Draw (MB7369/MB7368/MB7389/MB7388)
Condensation Self Cleaning Models; 68 Current Draw (MB7569/MB7568/MB7589/MB7588)
Environmental and construction
• Operating temperature: −40 °C to +65 °C (−40 °F to +149 °F)• Enclosure: Industrial weather-resistant housing; IP67
• Options: Fluorosilicone (F-Option) chemical-resistant coating; Parylene coating
• Compliance: RoHS
Integration and application
• Designed for easy integration into municipal, industrial, and research applications• Fits standard 3/4-inch NPS pipe fittings (sensor connection end)
• Aim to avoid hard reflections from nearby posts, towers, or enclosures
Behavior and filtering • Reports the largest detectable target • Filtering designed to create steady readings by ignoring miniscule clutter
Specifications summarized above. See the Flood Level Ultrasonic Sensor Datasheet for complete electrical and mechanical details.
This Flood Level Ultrasonic Sensor delivers precision water level measurement with a resolution of 1 mm. By offering both 5 m and 10 m models, it provides flexibility for a wide range of monitoring sites. The sensor uses ultrasonic technology to provide stable, non-contact measurements, reducing maintenance and ensuring long-term reliability in outdoor installations. Its compact design integrates easily with existing systems, while maintaining consistent performance in demanding flood monitoring environments.
The 5 m range model is best suited for smaller applications such as roadside culverts, storm drains, streams, and retention ponds where space is limited and shallow water measurement is required. It delivers accurate readings in close-range monitoring while ensuring quick installation and dependable operation for distributed smart city networks or localized monitoring stations.
For larger-scale applications, the 10 m range model expands capability for deeper rivers, lakes, canals, and municipal water infrastructure. It retains the same 1 mm resolution but extends detection to longer distances, giving municipalities and utilities the ability to capture precise level data across wider or deeper environments. This makes it especially effective in areas prone to high water events, seasonal flooding, and storm surges where additional range is critical.
Both 5 m and 10 m models are widely used for municipal and environmental monitoring programs, including flood prevention systems, drainage networks, and smart-city infrastructure. They provide reliable early-warning data to support proactive management and improved safety during extreme weather events. The sensor’s precision enables better data logging, system automation, and integration into larger monitoring networks, ensuring accurate information for decision makers and engineers.
Choose the standard low-current version for continuous monitoring, or a self-cleaning version that helps prevent frost and condensation at challenging sites when operated with constant power.
Documents
Chemical Compatibility
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Review our Chemical Compatibility notes to learn about our compatibility in different environments. Please contact our Technical Support team with any questions about chemicals not listed.
Email: techsupport@maxbotix.com
Product 3D Models
100 Housing (Full Horn Housing)
No PCNs on Record
