Milesight EM500 Series User manual

Outdoor Environment
Monitoring Sensor
Featuring LoRaWAN®
EM500 Series
User Guide

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Applicability
This guide is applicable to EM500 series sensors shown as follows, except where otherwise
indicated.
Model
Description
EM500-CO2
Carbon Dioxide Sensor
EM500-LGT
Light Sensor
EM500-PP
Pipe Pressure Sensor
EM500-PT100
PT100 Temperature Sensor
EM500-SMT
Soil Moisture Sensor
EM500-SMTC
Soil Moisture Moisture, Temperature and Conductivity Sensor
EM500-SWL
Submersible Level Sensor
EM500-UDL
Ultrasonic Distance/Level Sensor
Safety Precautions
Milesight will not shoulder responsibility for any loss or damage resulting from not following the
instructions of this operating guide.
The device must not be disassembled or remodeled in any way.
In order to protect the security of the device, please change device password when first
configuration. The default password is 123456.
The device is not intended to be used as a reference sensor, and Milesight will not should
responsibility for any damage which may result from inaccurate readings.
Do not place the device close to objects with naked flames.
Do not place the device where the temperature is below/above the operating range.
Make sure electronic components do not drop out of the enclosure while opening.
When installing the battery, please install it accurately, and do not install the reverse or
wrong model.
The device must never be subjected to shocks or impacts.
Declaration of Conformity
EM500 series is in conformity with the essential requirements and other relevant provisions of
the CE, FCC, and RoHS.
Copyright © 2011-2022 Milesight. All rights reserved.

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All information in this guide is protected by copyright law. Whereby, no organization or individual
shall copy or reproduce the whole or part of this user guide by any means without written
authorization from Xiamen Milesight IoT Co., Ltd.
For assistance, please contact
Milesight technical support:
Email: iot.supp[email protected]om
Tel: [phone]
Fax: [phone]
Address: Building C09, Software Park III,
Xiamen 361024, China
Revision History
Date
Doc Version
Description
Nov. 23, 2020
V 1.0
Initial version
Dec. 7, 2021
V 1.1
Content update

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Contents
1. Product Introduction.................................................................................................................................5
1.1 Overview........................................................................................................................................... 5
1.2 Features............................................................................................................................................5
2. Hardware Introduction..............................................................................................................................5
2.1 Packing List......................................................................................................................................5
2.2 Hardware Overview.........................................................................................................................6
2.3 Dimensions...................................................................................................................................... 7
2.4 Power Button................................................................................................................................... 8
2.5 Pinouts..............................................................................................................................................8
3. Device Assembly....................................................................................................................................... 8
4. Operation Guide.......................................................................................................................................10
4.1 Log in the ToolBox........................................................................................................................10
4.1.1 NFC Configuration.............................................................................................................10
4.1.2 USB Configuration............................................................................................................. 11
4.2 LoRaWAN Settings....................................................................................................................... 12
4.3 Basic Settings................................................................................................................................14
4.4 Advanced Settings........................................................................................................................15
4.4.1 Data Collection Settings...................................................................................................15
4.4.2 Calibration Settings...........................................................................................................15
4.4.3 Threshold Settings............................................................................................................ 16
4.5 Maintenance.................................................................................................................................. 16
4.5.1 Upgrade...............................................................................................................................16
4.5.2 Backup.................................................................................................................................17
4.5.3 Reset to Factory Default...................................................................................................19
5. Installation................................................................................................................................................19
6. Milesight IoT Cloud Management........................................................................................................ 21
7. Device Payload........................................................................................................................................ 22

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1. Product Introduction
1.1 Overview
EM500 series is a sensor mainly used for outdoor environment through wireless LoRa network.
EM500 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 Milesight IoT Cloud
or through the user's own Network Server.
1.2 Features
Up to 15 km communication range
Easy configuration via NFC
Standard LoRaWAN®support
Milesight IoT Cloud compliant
Low power consumption with 19000mAh replaceable battery
2. Hardware Introduction
2.1 Packing List
1 × EM500 Device
(Include Mounting
Bracket)
2 × Wall Mounting
Kits
2 × Fixing Screws
4 × Rubber Screw
Caps
1 ×
Hose Clamp
1 ×
DIN Rail Kit (Optional)
1 ×
Warranty Card
1 ×
Quick Guide
If any of the above items is missing or damaged, please contact your sales representative.

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2.2 Hardware Overview
EM500 series sensors is made up of a LoRa transceiver and a sensor. Among them, ultrasonic
sensors and gas sensors are combined with LoRa transceiver.
Back View:
④Battery (Internal)
⑤Wall Mounting Holes
⑥Pole Mounting Holes
Front View of EM500-CO2:
①LoRa Antenna (Internal)
②NFC Area
③Vent Tube
Front View of EM500-UDL:
①LoRa Antenna (Internal)
②NFC Area
③Ultrasonic Horn
Front View of EM500:
①LoRa Antenna (Internal)
②NFC Area
③Water-proof Connector

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2.3 Dimensions(mm)
EM500
EM500-CO2
EM500-UDL

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2.4 Power Button
Note: The LED indicator and power button are inside the device. Switch on/off and reset can
also be configured via NFC.
Function
Action
LED Indication
Turn On
Press and hold the button for more than 3 seconds.
Off →On
Turn Off
Press and hold the button for more than 3 seconds.
On →Off
Reset
Press and hold the button for more than 10 seconds.
Blink 3 times.
Check
On/Off Status
Quickly press the power button.
Light On: Device is on.
Light Off: Device is off.
2.5 Pinouts
For parts of EM500 sensors, you need to connect the sensor part to EM500 transceiver
according to the pinouts. You can also find pinouts label on the motherboard.
Note:
1) For EM500-SMT sensor, VOUT=2.5 V; for other sensors, VOUT=12V;
2) For EM500-SMTC sensor, it has a green cable which does not need to connect to EM500
transceiver, please cut off it or insulated wrap it.
3. Device Assembly
For parts of models, you need to connect sensor to the EM500 transceiver to make the whole
device work.
1. Take off the mounting bracket on the transceiver, remove the screws, rubber seal and cover
on the bottom of the device.
PIN
LGT
PP/SWL
PT100
SMT
SMTC
1
Black/GND
Red/GND
White/GND
Black/GND
Black/GND
2
---
---
---
Yellow/AIN
---
3
---
---
---
---
---
4
Blue/B
White/B
Red/PT1
---
White/B
5
Green/A
Yellow/A
Red/PT2
---
Yellow/A
6
Red/VOUT
Black/VOUT
---
Brown/VOUT
Red/VOUT

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2. Lock the sensor wires to the block according to the label on the motherboard or chapter 2.5,
then pass the sensor cable through the cap, rubber seal and cover.
3. Put the motherboard back and restore everything to its due position. When restoring the
cover, ensure the arrow faces the front of the transceiver.
Note: Rubber seal and rubber screw caps should be installed accordingly, or the water will come
into the device.

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4. Operation Guide
4.1 Log in the ToolBox
EM500 series can be monitored and configured via ToolBox App or ToolBox software. Before
configuration, ensure the insulating sheet inside the device has be pulled out and battery is not
placed reversed.
4.1.1 NFC Configuration
1. Download and install “Milesight ToolBox” App from Google Play or Apple App Store.
2. Enable NFC on the smartphone and launch Milesight ToolBox.
3. Attach the smartphone with NFC area to the device to read device information. Basic
information and settings of the device will be shown on ToolBox App if it’s recognized
successfully. You can read and configure the device by tapping the Read/Write device on the
App. In order to protect the security of the device, please change password when first
configuration. The default password is 123456.
Note:
3) Ensure the location of smartphone NFC area and it’s recommended to take off phone case.
4) If the smartphone fails to read/write configurations via NFC, keep the phone away and back
to try again.
5) EM500 series can also be configured by dedicated NFC reader, which can be purchased from
Milesight IoT.

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4.1.2 USB Configuration
1. Download ToolBox software from www.milesight-iot.com.
2. Release the enclosure of the EM500 transceiver, then connect the device to a computer via
Type-C port.
3. Open the ToolBox and select type as “General”, then click password to log in ToolBox.
(Default password: 123456)
4. After logging in the ToolBox, you can click “Power On” or “Power Off” to turn on/off device
and change other settings.

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4.2 LoRaWAN Settings
LoRaWAN settings is used for configuring the transmission parameters in LoRaWAN®network.
Basic LoRaWAN Settings:
Go to Device->Setting->LoRaWAN Settings of ToolBox App to configure join type, App EUI, App
Key and other information. You can also keep all settings by default.
Parameters
Description
Device EUI
Unique ID of the device which can also be found on the label.
App EUI
Default App EUI is 24E124C0002A0001.
Application Port
The port used for sending and receiving data, default port is 85.
Join Type
OTAA and ABP mode are available.
Application Key
Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823.
Device Address
DevAddr for ABP mode, default is the 5th to 12th digits of SN.
Network Session
Key
Nwkskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
Application
Session Key
Appskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
Spread Factor
If ADR is disabled, the device will send data via this spread factor.
Confirmed Mode
If the device does not receive ACK packet from network server, it will resend
data 3 times at most.
Rejoin Mode
Reporting interval ≤ 30 mins: device will send specific mounts of LoRaMAC

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packets to check connection status every 30 mins; If no reply after specific
packets, the device will re-join.
Reporting interval > 30 mins: device will send specific mounts of LoRaMAC
packets every to check connection status every reporting interval; If no reply
after specific packets, the device will re-join.
ADR Mode
Allow network server to adjust datarate of the device.
Tx Power
Transmit power of device.
Note:
1) Please contact sales for device EUI list if there are many units.
2) Please contact sales if you need random App keys before purchase.
3) Select OTAA mode if you use Milesight IoT cloud to manage devices.
4) Only OTAA mode supports rejoin mode.
LoRaWAN Frequency Settings:
Go to Setting->LoRaWAN Settings of ToolBox App to select supported frequency and select
channels to send uplinks. Make sure the channels match the LoRaWAN®gateway.
If frequency is one of CN470/AU915/US915, you can enter the index of the channel that you
want to enable in the input box, making them separated by commas.
Examples:
1, 40: Enabling Channel 1 and Channel 40
1-40: Enabling Channel 1 to Channel 40
1-40, 60: Enabling Channel 1 to Channel 40 and Channel 60
All: Enabling all channels
Null: Indicates that all channels are disabled

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Note:
For -868M model, default frequency is EU868;
For -915M model, default frequency is AU915.
4.3 Basic Settings
Go to “Device Settings -> Basic” of ToolBox software or “Device -> Settings -> General Settings”
of ToolBox App to change the reporting interval, etc.
Parameters
Description
Reporting Interval
Reporting interval of transmitting data to network server.Default: 10
mins, Range: 1-1080 mins.
Temperature Unit
For EM500-CO2/SMTC/PT100 sensor, change the temperature unit
displayed on the ToolBox.
Note:
1) The temperature unit in the reporting package is fixed as °C.
2) Please modify the threshold settings if the unit is changed.
Pressure Unit
For EM500-PP sensor, change the pressure unit displayed on the
ToolBox.
Note:

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1) The pressure unit in the reporting package is fixed as kPa.
2) Please modify the threshold settings if the unit is changed.
Change Password
Change the password for ToolBox App or software to read/write this
device.
4.4 Advanced Settings
4.4.1 Data Collection Settings
Go to “Device Settings->Basic” of ToolBox software or “Device -> Settings -> Data Collection
Settings” of ToolBox App to select the data you need to monitor. This feature is only supported
by EM500-CO2and EM500-SMTC sensors.
4.4.2 Calibration Settings
Numerical Calibration:
ToolBox supports numerical calibration for all items. Go to “Device Settings -> Basic” of ToolBox
software or “Device -> Settings -> Calibration Settings” of ToolBox App to type the calibration
value and save, the device will add the calibration value to raw value.
CO2Calibration:
For EM500-CO2, ToolBox provides more calibration methods:
Manual Calibration: Put the device in an open outdoor environment for more than 10 minutes
and click this button to calibrate the CO2value.
Factory Calibration Restored: Clean the manual calibration and turn back to factory calibration.

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Abnormal Value Prevention:
For EM500-PT100/SWL/UDL, ToolBox provides abnormal value prevention feature for accurant
results. If the current value exceeds the range of previous value, the sensor will discard the
current value and remeasure again. Take 20% as example, if last value is 5 and max range is 10,
the next value should within the range 3-7, or the sensor will measure again.
4.4.3 Threshold Settings
Go to “Device Settings->Basic” of ToolBox software or “Device->Setting->Threshold Settings” of
ToolBox App to enable the threshold settings and input the threshold. EM500 series will upload
the current data instantly after the threshold is triggered.
4.5 Maintenance
4.5.1 Upgrade
ToolBox Software:
1. Download firmware from www.milesight-iot.com to your PC.
2. Go to “Maintenance -> Upgrade” of ToolBox software, click “Browse” to import firmware and
upgrade the device. You can also click “Up to Date”to search for the latest firmware of the

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device and upgrade.
ToolBox App:
1. Download firmware from www.milesight-iot.com to your smartphone.
2. Open ToolBox App and click “Browse” to import firmware and upgrade the device.
Note:
1) Operation on ToolBox is not supported during the upgrade.
2) Only Android version ToolBox supports the upgrade feature.
4.5.2 Backup
EM500 devices support configuration backup for easy and quick device configuration in bulk.

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Backup is allowed only for devices with the same model and LoRa frequency band.
1. Go to “Template” page on the App and save current settings as a template. You can also edit
the template file.
2. Select one template file which saved in the smartphone and click “Write”, then attach to
another device to write configuration.
Note: Slide the template item left to edit or delete the template. Click the template to edit the
configurations.

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4.5.3 Reset to Factory Default
Please select one of following methods to reset device:
Via Hardware: Hold on power button (internal) for more than 10s.
Via ToolBox Software: Go to “Maintenance->Backup and Reset” to click “Reset”.
Via ToolBox App: Go to “Device->Maintenance” to click “Reset”, then attach smart phone with
NFC area to device to complete reset.
5. Installation
EM500 transceiver support wall, pole and DIN rail mounting. Before installation, ensure the
mounting bracket has fixed to the device via screws.

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Wall Mounting:
1. Drill 2 holes on the wall according to the mounting bracket, then fix the wall plugs into the
wall.
2. Fix the mounting bracket to the wall via screws.
3. Put the device onto the mounting bracket, then fix the device to the bracket with 2 fixing
screws.
Pole Mounting:
Straighten out the hose clamp and slide it through the rectangular holes in the mounting bracket,
wrap the hose clamp around the pole. After that use a screwdriver to tighten the locking
mechanism by turning it clockwise.
DIN Rail Mounting:
Use 2 pcs of M3 × 6 flat head Phillips screws to fix the mount clip to the bracket, and then hang
the device to the DIN rail. The width of DIN rail is 3.5 cm.