Name: EM300-SLD/ZLD Leak Detection Sensor
Brand: Jinan Huayng Automation Technology Co.,Ltd.
Availability: OutOfStock

EM300-SLD/ZLD Leak Detection Sensor

The EM300-SLD/ZLD series are compact LoRaWAN® leak detection sensors for reliable water and conductive liquid monitoring. The SLD model uses a 1.5m probe for targeted spot leak detection, while the ZLD model uses a 3m customizable sensing cable for large-area zone monitoring. Both integrate temperature and humidity monitoring, offer long-range wireless transmission, IP67 waterproofing, NFC one-click setup, and up to 10 years of battery life. Paired with Milesight gateways and IoT platforms, they enable remote, maintenance-free monitoring to prevent water damage across commercial, industrial, and residential scenarios.

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EM300-SLD/ZLD Leak Detection Sensor

Product Features

Dual-Mode Detection: SLD (1.5m probe) for targeted leaks / ZLD (3m customizable cable) for large-area coverage
Built-in temperature & humidity monitoring
LoRaWAN® + D2D connectivity (up to 10km range)
IP67 waterproof & UV-resistant for harsh environments
4000mAh battery (up to 10 years life)
Local data storage & retransmission
NFC one-click configuration
Flexible installation (wall screw, 3M tape, cable tie)

Purchase Ways

EM300-ZLD

EM300-SLD

Leak Detection Sensor Parameters Comparison

Leak Detection Sensor Parameters Comparison
Parameter	EM300-SLD (Spot Type)	EM300-ZLD (Zone Type)
Leak Detection Type	Spot detection (conductive liquid)	Zone detection (conductive liquid)
Probe/Cable Length	1.5m probe	3m sensing cable (customizable)
Detection Trigger	5mm liquid height	5mm liquid height
Temperature Range	-30°C ~ 70°C, ±0.5°C accuracy	-30°C ~ 70°C, ±0.5°C accuracy
Humidity Range	0 ~ 100%RH, ±3%RH accuracy	0 ~ 100%RH, ±3%RH accuracy
Protection Rating	IP67	IP67
Power Supply	4000mAh battery, up to 10 years	4000mAh battery, up to 10 years
Connectivity	LoRaWAN® Class A + D2D, 10km range	LoRaWAN® Class A + D2D, 10km range
Configuration	NFC one-click setup	NFC one-click setup
Installation Methods	Wall screw, 3M tape, cable tie	Wall screw, 3M tape, cable tie

Application scenarios

Spot Leak Monitoring (SLD): Pipe leaks, basement flooding, pump failures, data center water risks, equipment room spills

Zone Leak Monitoring (ZLD): Pipeline corridors, warehouse spills, data center cable trenches, facility-wide flood control

Proactive water damage prevention for residential, commercial, and industrial facilities

Application Case

◂ Pain Point▸

Hidden Water Leak Risks: Undetected leaks in riser cupboards and concealed areas pose property damage and operational disruption risks.

Manual Compliance Monitoring: Manual hot/cold water temperature checks are inefficient and create Legionella compliance gaps.

Non-Invasive Deployment Requirement: Solutions must be retrofitted without disruptive building work or guest experience impact.

Lack of Unified Data Platform: Scattered data across systems makes it hard to gain a unified view of energy/utility consumption across multiple hotel sites.

◂ Solution▸

Deploy a Milesight LoRaWAN® estate-wide IoT solution for multi-site monitoring:

EM300-SLD/MLD Leak Detection Sensors: Installed in high-risk areas to detect hidden water leaks, triggering instant email/phone alerts to hotel teams.

TS302 Temperature Sensors: Continuously monitor hot/cold water systems to automate Legionella compliance, eliminating manual checks.

UC100 Modbus to LoRaWAN® Converters: Integrate existing pulse/Modbus meters to unify real-time electricity data.

CT101/CT303 Smart Current Transformers: Retrofitted to extend circuit monitoring without invasive installation.

UG65 LoRaWAN® Gateways: Form a reliable wireless backbone to connect all sensors across guest and back-of-house areas.

Iniotech Cloud IoT Platform: Centralizes data into live dashboards, automated compliance reports, and intelligent alerts for multi-site management.

Result: Early leak detection prevents property damage; unified energy/utility visibility enables data-driven decisions; automated monitoring replaces manual checks for Legionella compliance; real-time alerts improve response speed and operational efficiency, while establishing a scalable foundation for future optimization.