EM300-ZLD is a compact zone leakage detection sensor for detecting large area presence of water (or other liquids) and transmitting alarm using LoRaWAN® technology. With this low power consumption technology, EM300-ZLD can work up to 5 years with 4000 mAh battery. Combining with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can manage all sensor data remotely and visually and receive alarms via mobile APP. EM300-ZLD also integrates temperature and humidity sensors, which has a great use for applications such as pipe leakage monitoring, basement flooding, pump failure, etc.

Features:

• detect the presence of liquids by a long cable and based on the conductive principle
• embedded with temperature and humidity sensors for environment monitoring
• ultra-wide-distance transmission up to line of sight of 10km
• IP67 UV-resistant and waterproof enclosure for harsh environment applications
• built-in 4000 mAh replaceable battery and works for more than 5 years without replacement
• store locally 3, 000 historical records and support retransmission to prevent data loss
• support Milesight D2D protocol to enable ultra-low latency and direct control without gateways
• equipped with NFC for easily configuration
• compliant with standard LoRaWAN® gateways and network servers
• quick and easy management with Milesight IoT Cloud solution

Specification:

Wireless transmission:

• technology: LoRaWAN®, Milesight D2D
• frequency CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4
• Tx power: 16dBm(868 MHz)/20dBm(915 MHz)/19dBm(470 MHz)
• sensitivity: -137dBm @300bps
• mode: OTAA/ABP Class A

Measurement:

• leakage detection:
• liquid type: conducting liquid
• trigger condition: when liquid level reaches 5mm
• detection cable: 3m (customizable)

Temperature:

• range: -30°C to + 70°C
• accuracy: 0°C to + 70°C (+/- 0.3°C), -30°C to 0°C (+/- 0.6°C)
• resolution: 0.1°C

Humidity:

• range: 0% to 100% RH
• accuracy: 10% to 90% RH (+/- 3%), below 10% and above 90% RH (+/- 5%)
• resolution: 0.5% RH

Operation:

• power on & off: NFC, Power Button (Internal)
• configuration: NFC configuration via mobile app
• advanced feature: Milesight D2D controller, data storage, data retransmission

Physical characteristics:

• power supply: 1 × 4000 mAh ER18505 Li-SOCL2 Battery (extendable to 2 batteries)
• battery life: 10 years (10 min interval + 24 triggers per day)
• operating temperature: -30°C to +70°C
• relative humidity: 0% to 100% (non-condensing)
• ingress protection: IP67
• dimension: 105.6 × 85.3 × 27 mm (4.16 × 3.36 × 1.06 in)
• installation: wall mountin
• approvals: 
• regulatory: CE, FCC
• environmental: RoHS