The S50 is a wireless leak sensor that detects most common liquids — water, oils, coolants and chemicals — with a contact probe, reporting alarms to your server within 30 seconds. Its IP68 probe and enclosure, 17,000 mAh replaceable battery and ultra-low-power design deliver 16+ years of service, while 2,000-record offline logging and SMS alerts (LTE model) keep alarms safe through outages.

Under 30 seconds to your server
16+ years at one report/day
IP68 dust-tight, temporary submersion
17,000 mAh / 3.6 V

Early detection of fuel and oil seepage around tanks and pipelines.

Monitor barrels for damage and catch leaks before they spoil the vintage.

Detect leaks the moment they happen, preventing hazards early.

Under-floor leak detection with immediate SMS escalation.

Long-life, maintenance-free coverage of remote or hard-to-reach areas.
| Model | S50-4 | S50-N | S50-L |
|---|---|---|---|
| Bands | 4G LTE: Global, or B1/3/5/7/8/20/28 (EU), or B2/3/4/5/7/8/28/66 (LA) | NB-IoT: Global | LoRaWAN: EU868 / US915 / AU915 / AS923 / KR920 / IN865 |
| Optional sensors | |||
| Temperature & humidity | Temperature range: −45.0 to +135 °C · Humidity range: 0 % – 100 % | ||
| Battery | |||
| Battery | 3.6 V 17,000 mAh (replaceable) | ||
| Battery life | >16 years (1 report/day) · >8 years (2 reports/day) | ||
| General | |||
| Shell material | PC, UL94 V-0 fire rating | ||
| Probe material | PPSU | ||
| Alert time | < 30 s | ||
| Working current | < 100 mA | ||
| Sleeping current | 50 µA | ||
| Protocol | TCP / UDP / MQTT (S50-4 / S50-N) · LoRaWAN (S50-L) | ||
| SMS alert | Supported (S50-4) | ||
| Offline data log | 2,000 records | ||
| SIM type | Nano SIM (S50-4 / S50-N) | ||
| Operating temperature | −40 to +85 °C | ||
| Dimension | 126 × 60 × 47 mm | ||
| Weight | 265 g | ||
Available with Pre-installed Global IoT SIM & Subscription Model (For Bulk Orders).
The probe detects liquid on contact: when liquid bridges the sensing surface, the sensor state changes and an alarm is generated. Because there are no exposed electrodes, the probe resists corrosion and false alarms from oxidation.
The S50 stores up to 2,000 records locally and automatically retransmits them once connectivity returns. Alarms are queued, not lost.
Yes. The 17,000 mAh / 3.6 V cell is user-replaceable, and with typical reporting (once per day) it lasts more than 16 years — so in most deployments it is never replaced at all.
The compact 126 × 60 × 47 mm enclosure mounts on walls (external probe version) or flat surfaces near the risk area, with the probe placed where liquid would first accumulate. No wiring is needed — power and communication are fully integrated.
Tell us the liquids, areas and networks involved — we will size and spec the right standard S50 deployment. Private-label, firmware and platform-integration support is available for qualified projects.