Ursalink EM500-SWL, User Manual, Page: 9 / 32

EM500-SWL User Guide
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1. Overview
1.1 Description
EM500-SWL is an outdoor environment monitoring sensor mainly used to measure liquid level
data through wireless LoRa network. EM500-SWL device is battery powered and designed for
multiple mounting ways. It is equipped with NFC (Near Field Communication) and can easily be
configured by a smartphone or a PC software.
Sensor data are transmitted in real-time using standard LoRaWAN protocol. LoRaWAN enables
encrypted radio transmissions over long distance while consuming very little power.
The user can obtain sensor data and view the trend of data change through Ursalink Cloud or thr
ough the user's own Network Server.
1.2 Features

Large measurement range for liquid level measurement

Up to 11km communication range

Easy configuration via NFC

Standard LoRaWAN support

Ursalink Cloud compliant

Low power consumption with 19000mAh replaceable battery
1.3 Specifications
LoRaWAN
Frequency EU433/CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923
Tx Power 20dBm
Sensitivity -147dBm @300bps
Mode OTAA/ABP Class A
Antenna Embedded Ceramic Antenna
Measurement
Pressure Type Absolute pressure
Range EM500-SWL-W003: 3m H
2
O
EM500-SWL-W005: 5m H
2
O
EM500-SWL-W010: 10m H
2
O
(Customizable up to 200m and for other liquid)
Accuracy ± 0.5% FS
Physical Characteristics
Probe Length At least should be 1-1.5m longer than measuring range