Ezviz T51C User manual

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Any and all information, including, among others, wordings, pictures, graphs are the
properties of Hangzhou EZVIZ Software Co., Ltd. (hereinafter referred to as “EZVIZ”).
This user manual (hereinafter referred to as “the Manual”) cannot be reproduced,
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any warranties, guarantees or representations, express or implied, regarding to the
Manual.
About this Manual
The Manual includes instructions for using and managing the product. Pictures,
charts, images and all other information hereinafter are for description and
explanation only. The information contained in the Manual is subject to change,
without notice, due to firmware updates or other reasons. Please find the latest
version in the ™ website (http://www.ezviz.com).
Revision Record
New release – January, 2022
Trademarks Acknowledgement
™, ™, and other EZVIZ’s trademarks and logos are the properties of
EZVIZ in various jurisdictions. Other trademarks and logos mentioned below are the
properties of their respective owners.
Legal Disclaimer
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE PRODUCT
DESCRIBED, WITH ITS HARDWARE, SOFTWARE AND FIRMWARE, IS PROVIDED
“AS IS”, WITH ALL FAULTS AND ERRORS, AND EZVIZ MAKES NO WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY,
SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE, AND
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OTHERS, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
OR LOSS OF DATA OR DOCUMENTATION, IN CONNECTION WITH THE USE OF
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EZVIZ’S TOTAL LIABILITY FOR ALL DAMAGES EXCEED THE ORIGINAL PURCHASE
PRICE OF THE PRODUCT.
EZVIZ DOES NOT UNDERTAKE ANY LIABILITY FOR PERSONAL INJURY OR
PROPERTY DAMAGE AS THE RESULT OF PRODUCT INTERRUPTION OR SERVICE
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LIMITATION, USING ANY THIRD PARTY’S PRODUCTS, SOFTWARE, APPLICATIONS,
AND AMONG OTHERS.
REGARDING TO THE PRODUCT WITH INTERNET ACCESS, THE USE OF
PRODUCT SHALL BE WHOLLY AT YOUR OWN RISKS. EZVIZ SHALL NOT TAKE
ANY RESPONSIBILITES FOR ABNORMAL OPERATION, PRIVACY LEAKAGE OR
OTHER DAMAGES RESULTING FROM CYBER ATTACK, HACKER ATTACK, VIRUS
INSPECTION, OR OTHER INTERNET SECURITY RISKS; HOWEVER, EZVIZ WILL
PROVIDE TIMELY TECHNICAL SUPPORT IF REQUIRED. SURVEILLANCE LAWS AND
DATA PROTECTION LAWS VARY BY JURISDICTION. PLEASE CHECK ALL RELEVANT
LAWS IN YOUR JURISDICTION BEFORE USING THIS PRODUCT IN ORDER TO
ENSURE THAT YOUR USE CONFORMS TO THE APPLICABLE LAW. EZVIZ SHALL
NOT BE LIABLE IN THE EVENT THAT THIS PRODUCT IS USED WITH ILLEGITIMATE
PURPOSES.
IN THE EVENT OF ANY CONFLICTS BETWEEN THE ABOVE AND THE APPLICABLE
LAW, THE LATTER PREVAILS.

Table of Contents
Overview ��������������������������������������������������������� 1
1� Package Contents ����������������������������������������������������������������������������1
2� Basics ����������������������������������������������������������������������������������������������1
Setup��������������������������������������������������������������� 2
1� Get the EZVIZ App ����������������������������������������������������������������������������2
2� Power on Temperature & Humidity Monitor���������������������������������������2
3� Add Temperature & Humidity Monitor �����������������������������������������������3
Installation ������������������������������������������������������ 4
Specifications ������������������������������������������������� 5
BATTERY INSTALLATION and REPLACEMENT�� 6
1� Install Battery�����������������������������������������������������������������������������������6
2� Replace Battery ��������������������������������������������������������������������������������6
3� Removable Lithium ion Battery(CR2450) ������������������������������������������6
Operations on the EZVIZ App ��������������������������� 7
1� Homepage����������������������������������������������������������������������������������������7
2� Settings��������������������������������������������������������������������������������������������7
INFORMATION FOR PRIVATE HOUSEHOLDS ���� 8

1
Overview
1� Package Contents
Temperature & Humidity Monitor (x1)
3M Tape (x1) Regulatory Information (x1) Quick Start Guide (x1)
2� Basics
Temperature & Humidity Monitor detects and displays the indoors temperature
and humidity and then sends the related data to the linked EZVIZ gateway. After
adding the Monitor to EZVIZ APP, you can view the related data on your phone
in real time; moreover, it can trigger other EZVIZ smart products to provide you a
smart home life.
Structure
Screen
Sensor
Front View
Sensor
Rotation Direction
Mark
Support Frame
Back View
Button
Button Cell Insulation Strip
Interior Diagram

2
Name Description
Button
• Press and hold the Button for 5s, the Temperature & Humidity Monitor
will restart and then enter device adding mode; at the same time, the
signal icon on the device screen will flashes quickly.
• Short press the Button to switch data display between degree
centigrade (℃) and fahrenheit degree ( ℉).
• Quickly press the Button twice to switch between Normal Mode and
High-preformance Mode.
Display Screen
Humidity
Signal Icon
Temperature
(℃ by default)
Electric Quantity
Setup
Follow the steps to set your monitor:
1. Get the EZVIZ app.
2. Power on your Temperature & Humidity Monitor.
3. Add the Monitor to your EZVIZ account.
1� Get the EZVIZ App
1. Connect your mobile phone to Wi-Fi (suggested).
2. Download and install the EZVIZ app by searching for “EZVIZ” in the App Store
or Google PlayTM.
3. Launch the app and register an EZVIZ user account.
EZVIZ App
If you have already used the app, please make sure that it is the latest version. To find
out if an update is available, go to the app store and search for "EZVIZ".
2� Power on Temperature & Humidity Monitor
Step 1 Remove Rear Cover
Remove the rear cover of the Temperature & Humidity Monitor by rotating it
anticlockwiseasshowninthegurebelow.
It is recommended to put the Temperature & Humidity Monitor on your hands to press
and twist it by your palm.

3
Step 2 Remove Insulation Strip
Take out the battery and draw out the battery insulation strip with your hand.
Insulation Strip
• Please replace the battery in time when low power prompts on your phone.
• If you need to replace the battery, please purchase one CR2450.
• When replacing batteries, please insert with the positive side facing up.
3� Add Temperature & Humidity Monitor
The Monitor should be used along with EZVIZ Zigbee Smart Gateway (afterinafter
referred to as "gateway"). Please add gateway to the EZVIZ Cloud by referring to the
gateway user manual, and then add the Monitor to the gateway by following the below
steps.
Method One: Add by Scanning QR Code
1. Log in to your account through EZVIZ app, tap the device adding icon and then
the QR code scanning interface will be displayed.
2. Press and hold the Button of the Monitor for over 5s till the signal icon on
Monitorscreenashes,andthentheMonitorentersdeviceaddingmode.
Button
The Monitor will exit device adding mode automatically over 3 minutes.
3. Scan the QR code on the inner side of the cover or the cover of the user
manual, and then add the Temperature & Humidity Monitor to the gateway.
5. Add the Temperature & Humidity Monitor to the gateway by following the
wizard on the app.
6. Rotate tightly the rear cover of the Temperature & Humidity Monitor clockwise
till the aligning mark on rear cover is aligned with the mark on the front
cover.

4
Method Two: Add by the Gateway
When adding Temperature & Humidity Monitor by the gateway, place the Monitor as close to
the gateway as possible.
1. Press the Funtion Button of the gateway to make the gateway enter device
adding mode.
2. Press and hold the Button of the Monitor for over 5s till the signal icon on
Monitorscreenashes,andthentheMonitorentersdeviceaddingmode.
Button
4. The Monitor has been added to the gateway successfully and the gateway
prompts adding successfully.
5. After the Temperature & Humidity Monitor is added successfully, rotate the
Monitor rear cover clockwise to tighten the rear cover till the aligning mark on
rear cover is aligned with the mark on the front cover.
Installation
• Metal will cause ZigBee signal attenuation, so please do not install the Monitor on a metal door, it
is recommended to install it on the wall next to the door.
• Do not install the Monitor in an environment with corrosivity or intense magnetic fields.
• It is recommended that the distance between the Monitor and gateway be less than 20m. If there
are walls between them, the number of walls should be no more than 2.
• It is recommended to use the Monitor in a house with an area of no more than 200 square meters;
if your house is too large, please purchase two or more Monitors for a better using experience.
• Before sticking 3M tape, please swipe the dust on the installation surface to enhance the tape
stickiness; do not stick it on a lime wall.
Please place the Monitor on desktop as you needed, or you can stick it on the wall
below 1 meter with 3M tape.
Place on the desktop

5
Stick on the place you needed (with 3M tape)
Specications
Working Temperature -10℃~ 60℃
Working Humidity 0%~99%RH
Wireless Protocol ZigBee 3.0
Battery Type CR2450
Battery Duration 12 months
For additional information about the device, please refer to www.ezviz/eu.

6
BATTERY INSTALLATION and REPLACEMENT
1� Install Battery
Tear off the battery insulation, put the battery into the baseplate and insert it to the
end.
2� Replace Battery
Remove the battery from baseplate and replace battery with the Lithium Battery
CR2450 purchased by a regular manufacturer. Test the device for correct operation
whenever the baterries are replaced after re-fitting the device onto the base plate.
If the device is not working properly, please add the device and configurate the
network again by following the steps in Setup part or directly contact our technical
support.
• Risk of explosion if the battery is replaced by an incorrect type.
• Improper replacement of the battery with an incorrect type may defeat a safeguard(for example, in
the case of some lithium battery types).
• Do not dispose of the battery into fire or a hot oven, or mechanically crush or cut the battery, which
may result in an explosion.
• Do not leave the battery in an extremely high temperature surrounding environment or extremely
low air pressure, which may result in an explosion or the leakage of flammable liquid or gas.
• Dispose of used batteries according to the instructions.
• identifies the battery holder itself and identifies the positioning of the cell(s) inside the
battery holder.
• "+" identifies the positive terminal(s) of device which is used with, or generates direct current, "-"
identifies the negative terminal(s) of device which is used with, or generates direct current.
3� Removable Lithium ion Battery(CR2450)
Ingredient CAS No� Content (wt%)
Lithium 7439-93-2 2.55(0.176 gram)
Propylene Carbonate 108-32-7 6.8
Manganese dioxide 1313-13-9 33.9
1,2-Dimethoxyethane 110-71-4 4.9
Lithium perchlorate 7791-03-9 1.8
Graphite 7782-42-5, 1333-86-4 3.7
Polypropylene 9003-07-0 1.8
Teflon 9002-84-0 1.8
Stainless steel 7439-89-6 42.75

7
Operations on the EZVIZ App
The app interface may be different due to version update, and the interface of the app you
installed on your phone shall prevail.
1� Homepage
Launch the EZVIZ app, open the homepage of the related gateway, you can manage
your Temperature & Humidity Monitor as needed on the page.
Log Detection log of the Monitor.
2� Settings
Parameter Description
Device Name Customize the name of your device.
Temperature/
Humidity Alarm
When enabled, the device will send an alarm message to
notice you that the temperature or humidity exceeds the set
values.
Temperature unit You can check the current temperature unit of the Monitor.
Performance Mode You can check the current performance mode of the Monitor.
Related Devices You can see the gateway connected to your monitor.
Device Information You can see the device information here.
Share Share your device.
Delete Device Tap to delete the Monitor from EZVIZ cloud.

8
INFORMATION FOR PRIVATE HOUSEHOLDS
1. Separate collection of waste equipment: Electrical and electronic equipment that
has become waste is referred to as waste equipment. Owners of waste equipment
must dispose of it separately from unsorted municipal waste. In particular, waste
equipment does not belong in household waste, but in special collection and return
systems.
2. Batteries and rechargeable batteries as well as lamps: Owners of waste
equipment shall, as a rule, separate waste batteries and rechargeable batteries that
are not enclosed in the waste equipment, which can be removed from the waste
equipment without being destroyed, from the waste equipment before handing them
in at a collection point. This does not apply if waste equipment is prepared for reuse
with the participation of a public waste management authority.
3. Options for returning waste equipment: Owners of waste equipment from private
households can return it free of charge to the collection points of the public waste
management authorities or to the take-back points set up by manufacturers or
distributors within the meaning of the Electrical and Electronics Equipment Law.
Stores with a sales area of at least 400 m² for electrical and electronic equipment
and those grocery stores with a total sales area of at least 800 m² that offer
electrical and electronic equipment several times a year or on a permanent basis
and make it available in the market are required to take it back. This also applies in
the case of distribution using means of distance communication, if the storage and
shipping areas for electrical and electronic equipment are at least 400 m² or the
total storage and shipping areas are at least 800 m². Distributors shall, in principle,
ensure take-back by providing suitable return facilities at a reasonable distance from
the respective end user. The possibility of returning waste equipment free of charge
exists for distributors who are obliged to take it back, among other things, if a new
similar device that essentially fulfills the same functions is delivered to an end user.
4. Privacy Notice: Waste equipment often contains sensitive personal data. This
applies in particular to devices of information and telecommunications technology
such as computers and smartphones. In your own interest, please note that each
end user is responsible for deleting the data on the waste equipment to be disposed
of.
5. Meaning of the symbol “crossed-out wheelie bin”: The symbol of a crossed-out
wheelie bin regularly depicted on electrical and electronic equipment indicates that
the respective device is to be collected separately from unsorted municipal waste at
the end of its service life.