EM400-UDL is a non-contact ultrasonic distance sensor designed for outdoor applications such as monitoring water level, fill level of tanks and silos, presence of objects, or snow level. It features multiple selective probes with varying detecting ranges to meet diverse requirements. With high protection IP rating and waterproof enclosure, EM400-UDL can withstand harsh environments, and it can work up to 10 years with two 9000 mAh batteries. Milesight offers LoRaWAN® version and NB-IoT/Cat.M version to meet different communication needs. The LoRaWAN® version can be integrated with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, enabling remote and visual management of all sensor data. The NB-IoT/Cat.M version not only supports multiple application modes to compatible with IoT platforms, but also is equipped with GNSS for tracking and security purposes.

• LoRaWAN® and NB-loT versions for broader applications
• great flexibility with multiple versions
• non-contact distance measurement
• value-added temperature and tilt monitoring
• LoRaWAN® & NB-IoT & CAT M versions available
• various professional applications
• long-lasting battery life of up to 10 years
• rugged and reliable IP67 rated enclosure
• positioning function enabled by GNSS modules (NB-loT version)

Features:

• selective probes vary from 25 to 1000 cm for multiple applications
• two built-in 9000 mAh replaceable batteries that work for up to 10 years without replacement
• equipped with NTC temperature sensor for the detection and alarm of burning
• built-in 3-axis accelerometer sensor to monitor device tilt status
• damp-proof coating inside and IP67 waterproof enclosure for outdoor 
• ultra-wide-distance wireless transmission up to line of sight of 15 km
• function well with standard LoRaWAN® gateways and network servers
• compatible with Milesight IoT Cloud for remote management

Physical characteristics:

• power supply: 2 x 9000 mAh ER26500 Li-SOCL2 Batteries
• battery life:
• LoRaWAN® version: > 10 years (10-min interval, 25°C)
• operating temperature: - 30°C ~ 70°C
• relative humidity: ≤95% (non-condensing)
• ingress protection: IP67
• dimension: 118 × 65 × 80 mm
• material: ABS + PC (flame retardant)
• color: black gray (C050/C100), gray (W050/W100/S050)
• installation: on the flat surfaces with screws