Product description: Milesight EM300-SLD Smart LoRaWAN Spot Flood Sensor with Temperature and Humidity Measurement IP67
The EM300-SLD is a compact point flood detection sensor designed for monitoring critical areas such as technical rooms, boiler rooms, and heating substations. Equipped with a 1.5 m detection probe on a 5 mm cable , it responds to liquid contact when the water level reaches 5 mm. The sensor also measures temperature and humidity , stores data in internal memory, and transmits it in real time via LoRaWAN . Its robust IP67 design and UV resistance ensure reliable operation in demanding environments. Support for the Milesight D2D protocol allows you to create Smart Home systems without the need for a standard network gateway .
During the first setup, you will need to know the default password that synchronizes the sensor with the application: 123456 .
Intelligent LoRaWAN spot flood sensor with IP67 temperature and humidity measurement - Milesight EM300-SLD.
The robust IP67 design and UV resistance guarantee reliable operation in demanding environments.
Main features of the sensor
- Spot flood detection : detection probe on a 1.5 m cable that responds to conductive water
- Temperature and humidity measurement : high accuracy (±0.3°C, ±3% RH)
- IP67 housing : water and UV resistant
- Long battery life : up to 10 years of operation (optional with dual battery)
- Internal memory : stores up to 2800 measurement records
- LoRaWAN transmission range : up to 2 km in the city and 15 km in open areas
- Easy setup : NFC and free Milesight IoT Cloud app
- Milesight D2D support : direct device-to-device communication without gateway
Advanced measurement capabilities and configuration
The EM300-SLD sensor detects the presence of conductive liquids at a depth of just 5 mm. Built-in temperature and humidity sensors provide accuracy of ±0.3°C (0°C to 70°C) and ±3% RH (10% RH to 90% RH). You can also set alarm thresholds and reporting intervals . With a memory capacity of 2,800 entries and a retransmission function, data is retained even during a temporary loss of communication.
Durable construction and operation in difficult conditions
The sensor body is made of flammable ABS + PC , and the probe is made of 316 stainless steel . The sensor meets the IP67 standard and is UV resistant. It can operate in temperatures from -30°C to 70°C and humidity from 0% RH to 100% RH. Wall mounting is possible using 3M tape or cable ties. Replaceable ER18505 4000 mAh battery (with the option to double the capacity) provides up to a decade of service-free operation.
The sensor is equipped with a detection probe on a 1.5 m long cable.
LoRaWAN wireless communication protocol.LoRaWAN connectivity and Milesight IoT Cloud integration
LoRaWAN enables transmission over very long distances with low power consumption. The EM300-SLD is compatible with LoRaWAN gateways from many manufacturers and supports the Milesight D2D protocol, enabling direct device-to-device communication. The Milesight IoT Cloud application enables data visualization in dashboards, reporting, real-time alerts, and action automation, such as triggering an alarm siren upon flood detection.
A description of the Milesight D2D protocol and a list of compatible devices can be found on the manufacturer's website .
Sensor technical specifications
- Technology: LoRaWAN, Milesight D2D
- Frequency: EU 868 MHz
- Transmitting power: 16 dBm
- Sensitivity: -137 dBm
- Mode: OTAA/ABP, Class A
- Flood detection: conductive liquid, level from 5 mm
- Probe cable: 1.5 m (optionally longer)
- Temperature measurement: -30°C to 70°C, accuracy ±0.3°C (0°C to 70°C)
- Humidity measurement: 0% RH to 100% RH, accuracy ±3% (10% RH to 90% RH)
- Memory: 2800 records
- Power supply: ER18505 4000mAh battery (optional 8000mAh)
- Battery life: up to 10 years
- Housing: ABS + PC (flame retardant), 316 stainless steel probe
- Protection: IP67, UV resistant
- Dimensions: 105.6 x 85.3 x 27 mm
- Weight: approx. 0.5 kg
Contents of the set
- Milesight EM300-SLD Spot Flood Sensor
- Detection probe on 1.5 m cable
- ER18505 4000 mAh battery - built-in
- User manual
Elements included in the set.
