Milesight EM300-ZLD Water Leak Detection Sensor: Spot & Zone Leakage Detection

Milesight EM300-ZLD is a LoRaWAN-based industrial water leak detection sensor. The rope-type design with 3 m cable is ideal for monitoring large areas (optional cable lengths up to hundreds of meters available). With multi-function features including spot and zone leak detection, temperature and humidity monitoring, it is suited for HVAC systems, landscaping, industrial facilities, and smart buildings. IoTMarketi provides a multi-brand IoT product catalog in Turkey and facilitates procurement through project-based quotes.

Key features

• High-sensitivity leak detection: Detects water and conductive liquids at 5 mm liquid level
• Two types available: EM300-SLD (1.5 m probe for fixed-point detection) and EM300-ZLD (3 m rope for large-area coverage)
• 3 sensors in 1 device: Temperature (±0.3 °C / ±0.6 °C), humidity (±3 % / ±5 %), and leak detection
• IP67 and UV resistant: Industrial protection against dust and water splash
• LoRaWAN communication: Up to 2 km range in urban areas, 15 km in rural areas
• Milesight D2D protocol: Device-to-device communication without gateway (lower latency, secure transmission)
• Up to 10-year battery life: Minimal maintenance required
• 2,800 historical data records: Stored on device, non-deletable for traceability
• Data retransmission support: Ensures all data reaches the server even during network outages

Benefits

• Flexible alarm settings: Customizable reporting interval and frequency for various scenarios
• NFC configuration: Enable, disable, and configure the device via mobile phone or PC
• Milesight IoT Cloud integration: Data visualization dashboard, automatic triggers, real-time alerts, Android/iOS app
• Reliable communication: Compatible with standard LoRaWAN gateways and network servers
• Industrial-grade design: Durable construction for harsh environments

Use cases

• HVAC systems (air conditioning and heating pipe leak detection)
• Landscape and garden irrigation systems
• Data centers and server rooms
• Industrial manufacturing facilities
• Smart building and office management
• Warehouses and logistics centers
• Hospitals and healthcare facilities

Technical notes

• Temperature accuracy: ±0.3 °C (0–70 °C); ±0.6 °C (−30–0 °C)
• Humidity accuracy: ±3 % (10–90 %); ±5 % (below 10 % and above 90 %)
• Leak detection: Water and conductive liquids at 5 mm liquid level
• Protection class: IP67 (dust and water splash resistant)
• UV resistance: Suitable for outdoor applications
• Battery life: Up to 10 years (depending on usage scenario)