2-3/8" or 2-3/4"
1"
2-3/8"
Lock Components
1. Prepare the door and check dimensions
Key
Keypad
LED indicator
Emergency Type-C backup
Exterior Assembly
Plastic box
Strike plate
Screw
Latch
Interior Assembly
Mounting Screws
Reset Key
Connector
Interior Cover
Required tools （not included）
Ruler
Philips head screwdriver
Hammer
Chisel
Use template to mark holesDrill two holesCheck dimenslons
4.Install the batteries and perform
the door handing process
5.Install the interior cover
feed power cable through hole in knob and guide spindle into knob.
Align the exterior keypad with the bore hole. Feed the power cable through latch.
The spindle on the exterior keypad should be aligned with the hole in the center
of the latch. Insert the spindle through this hole as you press the exterior keypad
against the door.
If the spindle holes of the latch are not aligned, repeat the 2-3/8" and 2-3/4" positions. This will automatically align the latch spindle holes.
Drill 1'' diameter
hole for latch
Drill 2-1/8''
diameter hole
Template
Backset
must match lock (2-3/8'' or 2-3/4'')
2.Install the latch and strike plate
Install latch
Install strike plate
3.Install the exterior keypad and the interior assembly
Setting latch（60MM or 70MM）
Install the exterior keypad
Install the interior assembly
Pull out the power cable
2-3/4"
+
-
+
-
+
-
+
-
2-1/8''
IULOCK
IU-20 SMART DOOR KNOB
Installation and User Guide
Features
. two ways to access: code and key
.
-22 F to +176 F temperature range
. Low power consumption, 4 AA for 2 Years Battery Life or 20,000 times unlock
. Backlit keypad for use in low light environments
. 1 master code and 50 user codes
. Passage mode for hassle-free entry
. Built-in disguise feature to protect your codes from prying eyes
. Low battery warning indication
Programming guide
To delete all user codes, including the master code, follow the instructions
below:
1. Use a screwdriver to remove the screws from the interior cover.
2. Remove the cover and find the reset button located on the battery pack.
3. Press and hold the reset button for 7 seconds until long beep are heard. The
master passcode will return to the manufacturer default code '123456'.
Restore Factory Settings
7S
Keypad
Check botton
LED indicator
Key
Pay attention toon the spindle "THIS SIDE UP”
Do not pull the power cable too hard
THIS SIDE UP
After tightening the 2 fixing screws, the knob should be easily turned by hand.
After your hand leaves the inside knob, the inside knob should easily return to
the original position.
If not, please re-adjust the position of the inside knob and tighten the screw.
M4X10
M4X40
M4X20
Mobile remote code
The code is generated by the website. You can set the unlock times or unlock
time periods on the website page. If it exceeds the set number of times or
time period, it will become invalid automatically. You do not need to program
locks. Therefore, you can remotely authorize this remote code to your
relatives, friends, neighbors, hourly workers, classmates or employees to
enter your home, room or office.
Please visit or scan the QR code below to access the website.
mylock.iulock.com
1. Register account
2. Add lock
3. Activate your lock
4. Use remote code
For remote code instructions , please visit
www.iulock.com
V3.8
Indicator light signals and beep
Passcode and Passcode Disguise
The color of the light indicates & beep ,the status of the lock.
. a correct master passcode or user passcode was entered ,one long beep
. the programming process is complete ,one long beep
. an incorrect master passcode or user passcode was entered,three short beep
. there was an error in programming, three short beep
. red blinking and beep after keypad backlit off indicates critically low battery
Green
Red
Unlock with passcode
Unlock with key
Green and one long beep
Red and three short beeps
Code correct, you can turn the knob to open the door immediately,
and it will be automatically locked later (the automatic locking time
depends on the setting of the automatic locking timer, the default is
4 seconds).
The code is incorrect, please re-enter the correct code and press the check
button to confirm
Insert the key and rotate the key. The first quarter turn should be very easy, then
continue to turn the key to retract the latch and you may need to apply some
force.
Tips: Turning the handle with the other hand in the same direction while you are
turning the key will make it easier to open.
Note: Because the knob is relative heavy and the mechanical key of this
electronic door knob is completely independent, so using the key requires a
little more force than the common mechanical lock.
Immediate Lock
Press the check button 4 times in a row at any time and the door will be
immediately locked, which overrides any other working modes.
. The master code MUST EXIST and can be modified, but cannot be deleted.
. The lock comes preset with default master passcode 123456.
. Used to put the lock in programming mode.
. Can unlock the lock.
. Must be different from all of the User Codes currently in the lock.
If you forget the master passcode, you may reset the lock to factory settings, which restores
the default master passcode. Please see Restore Factory Settings.
. Make sure to set a new master code which can be1-15 digits long as soon as you finish
installing the lock.
Master passcode
Passcode Disguise
User passcode
User codes can be added, modified, deleted.
. Can be 1-15 digits long.
. The lock comes preset with no user codes.
. Used to unlock the lock.
. Must be different from the master passcode and other user passcodes.
. Up to 50 possible user codes can be stored in the lock at one time.
This function is an added security feature which is aimed at preventing passcode theft. With
Passcode Disguise, you may enter up to 40 digits into the keypad. As long as the correct
passcode sequence is entered, regardless of how many digits were entered before or
afterwards, the lock will unlock.
For example, if your user passcode is “112256“, you can successfully unlock the lock by
entering “***112256***”(limit 40 digits).
Change your master code immediately when you finish
restoring the factory settings .
Measure your door for a backset of the 2-3/8"or 2-3/4". If it is 2-3/4", adjust the latch as follows:
Grasp the spring pin and move it from the 2-3/8" slot to 2-3/4" slot.
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