
SePem 150
by Hermann Sewerin GmbH · 🇩🇪 Germany · Noise Loggers & Monitoring
SMART METERVERIFIEDNoise Logger
Drive-by noise logger for mobile grid monitoring. Remains in the network for days to months and is read out by radio when passing, measuring relative level changes for proactive leak detection in small and medium networks. IP68, external antenna option.
Technical specifications
| Meter / product type | Noise Logger (permanent, drive-by) |
| Application | Permanent leak prelocation & continuous DMA monitoring |
| Detection method | Nightly MNL logging (programmable epoch) with relative level-change detection |
| Sensor type | High-sensitivity piezoelectric microphone (structure-borne), optimised for leak noise |
| Communication | Bidirectional drive-by radio to SePem 01 Master; external aerial |
| Protection class (IP) | IP68 (fully waterproof & dustproof) |
| Housing material | Stainless steel + sewage-grade engineering plastic housing |
| Battery life | Multi-year internal battery |
| Power / battery | Internal battery (sealed, non-mains) |
| Memory / logging | Nightly MNL logging (programmable epoch); last-measurement graph retrievable drive-by |
| Outputs / software | MNL, spread & frequency + last-measurement graph retrievable drive-by; PC via USB |
| Accessories | Mounting magnet; external aerial; SePem 01 Master receiver; PC software (USB) |
| Mounting / installation | Magnetic mount on valve-rod extension, hydrant or fitting |
| Deployment type | Permanent fixed-network monitoring (drive-by readout) |
✓ Verified from manufacturer datasheet. View datasheet →



