Acoustic Leak Noise Loggers
SePem noise loggers monitor water distribution networks for leaks automatically. Deployed magnetically onto fittings, valves and hydrants in valve chambers, each logger listens during the quiet night hours and records the leak-noise level — flagging new leaks long before they surface. Loggers can be left permanently for zone monitoring or moved on patrol, and results are read out by radio with the SePem 01 Master.
Compact and rugged in stainless steel and polypropylene, the SePem 155 is rated IP68 and submersible to 1 m, with bi-directional radio data and an adjustable sampling interval from 1 second to 1 hour. A single lithium cell delivers up to five years of service at standard settings.
| Dimensions (D x H) | 54 x 114 mm (without magnet and aerial) |
|---|---|
| Weight | 775 g (1.71 lb) |
| Material | Stainless steel, polypropylene |
| Memory | 64 kB |
| Processor | 16-bit microcontroller |
| Operation | Magnetic activation via reed contact |
| Protection rating | IP68 (submersible to 1 m) |
| Sampling rate | Adjustable 1 s - 1 h |
|---|
| Frequency | 461.0375 - 469.5625 MHz |
|---|---|
| Communication | Bi-directional radio data |
| Power | 20 mW |
| Battery | Lithium metal cell |
|---|---|
| Operating time | Up to 5 years (standard settings) |
| Operating temperature | -15 to 55 C |
| Humidity | 100 % r.h. |
| Reads out with | SePem 01 Master |
|---|---|
| Certificates | FCC |
Interested in the Sepem Noise Logger 352/155?
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