SW2 Water Leak Sensor
The SW2 is a rechargeable Bluetooth LE water leak sensor with an external dual-contact probe for narrow or hard-to-reach locations.
SW2 Water Leak Sensor
The SW2 is a rechargeable Bluetooth LE water leak sensor with an external dual-contact probe for narrow or hard-to-reach locations.
Core Functions
- Detects water when both contacts on the 39 in (1 m) external probe become wet.
- Sends leak events over Bluetooth LE and supports App, email, Hub, and local alerts.
- Provides a 90 dB local buzzer alarm.
Product Appearance
The diagram identifies the charging port, Setup pinhole, probe port, indicator light, buzzer, and external water-detection probe.

Specifications
| Specification | Details |
|---|---|
| Model | SW2 |
| Wireless Protocols | Bluetooth LE |
| Wireless Range | 131 ft (40 m), line-of-sight |
| Dimensions | 2.4 × 2.4 × 0.7 in (L × W × H) |
| Weight | 2.9 oz (82 g), including the probe |
| Battery | 3.7 V, 1800 mAh lithium battery (rechargeable) |
| Charging Input | Micro-USB, 5 V / 1 A |
| Probe Length | 39 in (1 m) |
| Operating Temperature | 14°F to 131°F (-10°C to 55°C) |
| Operating Humidity | 0% to 95% RH |
| Buzzer Sound Level | 90 dB at 10 cm |
| Water Resistance | External probe is waterproof; sensor body is not waterproof |