User Guide

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3.4.2 Threshold Settings
Go to
Device > Setting > Threshold Settings to enable the threshold settings and input the
distance threshold. EM400-UDL will detect whether the distance reaches the threshold
according to collecting interval. If threshold is triggered, it uploads the current data once
instantly.
Parameters
Description
Collecting Interval
Collecting interval of ultrasonic sensor to detect distance. Range:
1~1080min
Threshold Dismiss
Report
When the collected value changes from outside the threshold to within the
threshold, a threshold release packet will be reported.
3.5 Maintenance
3.5.1 Upgrade
1. Download firmware from Milesight website to your smartphone.
2. Open Toolbox App, go to Device > Maintenance and click Browse to import firmware and