Liquid Leak Sensor S50
The S50 is a wireless leak sensor that detects most common liquids, including water, oils, coolants and chemicals, using a contact probe. Alarms are reported to the server within 30 seconds of liquid flowing past or touching the probe. Its IP68 probe and enclosure, 17,000 mAh replaceable battery and ultra-low-power design deliver 16+ years of service, while SMS alerts (LTE model) keep alarms safe through outages.
Install once. Protect for years.
Fast alarm reporting
Under 30 seconds to your server
Long battery life
16+ years at one report/day
Rugged sealing
IP68 dust-tight, temporary submersion
Replaceable power cell
17,000 mAh / 3.6 V
- Detects most liquids — water, chemicals, oils and coolants (not strong acids or alkalis).
- Event-triggered alerts — wireless alarm reported to your server within 30 seconds.
- 4G by default — LoRaWAN and NB-IoT variants available for LPWAN deployments.
- Offline data logging — 2,000 records stored and retransmitted after network outages.
- SMS alerts — direct notification on the LTE model, no platform required.
- Optional temperature & humidity — −45 to +135 °C sensing on the probe.
Where a small leak becomes a big loss
Homes & residential water supply
Protect water heaters, supply manifolds and risers from silent drips and burst lines.
Wine cellars & warehouses
Monitor barrels for damage and catch leaks before they spoil the vintage.
Chemical warehouses
Detect leaks the moment they happen, preventing hazards early.
Data & server rooms
Under-floor leak detection with immediate SMS escalation.
Facilities & basements
Long-life, maintenance-free coverage of remote or hard-to-reach areas.
S50 technical specifications
| 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).
Leak Sensor S50 — common questions
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.
Protecting tanks, rooms or a whole site?
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.