Operating Instructions
Hand-Held Radio Transmitter 4 Channel
Item No. 1839712
Intended use
The 4 channel hand-held radio transmitter is intended for use in wide range of remote switching and
controlling functions. Possible applications include garage door, gates, lighting and many others. The output
switch contacts are suitable to handle mains voltage.
For safety and approval purposes, you must not rebuild and/or modify this product. If you use the product
for purposes other than those described above, the product may be damaged. In addition, improper use
can result in short circuits, fires, electric shocks or other hazards. Read the instructions carefully and store
them in a safe place. Make this product available to third parties only together with its operating instructions.
This product complies with the statutory national and European requirements.
All company names and product names are trademarks of their respective owners. All rights reserved.
Features of the handheld transmitter
• Compact size dimensions of just 58 x 30 x 12 mm
• 4 buttons with tactile feedback
• Blue LED for showing transmitting activity
• Battery 12 V Type 27 A (included, already preinstalled)
• 48-bit security code
• Compliant with CE and RED requirements (433 MHz, <10 mW ERP) for use within EU countries
Up-to-date Operating Instructions
Download the latest operating instructions at www.conrad.com/downloads or scan the
QR code shown. Follow the instructions on the website.
Explanation of symbols
The symbol with the lightning in the triangle is used if there is a risk to your health, e.g. due to an
electric shock.
The symbol with the exclamation mark in the triangle is used to indicate important information in
these operating instructions. Always read this information carefully.
Safety instructions
Read the operating instructions carefully and especially observe the safety information.
If you do not follow the safety instructions and information on proper handling in this
manual, we assume no liability for any resulting personal injury or damage to property.
Such cases will invalidate the warranty/guarantee.
• The handling of products operating with electric current requires you to follow the rules from
VDE such as VDE 0100, VDE0550/0551, VDE 0700, VDE 0711 and VDE 0860 or other local
rules in your country.
• The product is not designed and authorized for use in life support or life saving applications! Do
not use the product for applications in which a temporary or permanent failure or malfunction
could cause damage to persons or propery.
• If the module is used to switch voltages greater 24 V it is necessary to have the installation
done with no voltage applied and performed by a trained professional authorized for such
work. The module may only be used in such application if it was installed in a safe to touch
enclosure.
• The module must only be used in dry and clean environment. The use near water, heavy dirt
and/or high humidity is dangerous and not permitted.
• The product must not be used in conjunction with any type of flammable liquid or gas or other
environment with risk of spark triggered explosions.
• Never exceed the limits or ratings listed in the "Technical Data" section at the end of this
user guide.
• If the module is used in schools or educational facilities or similar institutions the operation
must be supervised by trained and authorized staff.
• The product itself and all parts thereof (including packing material) are not suitable toys for
childern! (choking hazard, risk of electric shock, ...)
Operation
The handheld transmitters will send a unique digital code for each of the 4 buttons pressed.
Each receiver could learn up to 50 such codes and associate them with one the two control channels. The
assignment between buttons on the transmitter and channel on the receiver can be freely choosen. It is
possible to use the same transmitter with several receivers.
a) Learning new transmitter codes
With short pressing of the programming key on the receiver the 'learning mode' is entered:
Programming key
LED
Press short
Ch 1 LED blinking
Press short again
Ch 2 LED blinking
Press short again
LEDs off
In learning mode the receiver is waiting for codes received from transmitters. If no code is received for about
10 seconds, the receiver will exit learning mode and return to normal operation mode. If a code is received
during learning mode, it is stored to memory and both LEDs will flash for confirmation.
b) Configuration of the two channels for toggle or timer mode
By keeping the programming button pressed for longer duration the configuration mode can be selected
according to this procedure:
First step: choose channel
Press programming key
and ...
Release, after...
Release, after...
Second step: choose desired mode
The mode of operation can be choosen individually for both channels. While the LED of Ch1 or Ch2 is still lit
from first step the programming key is pressed again, and...
Programming key
pressed again, and...
...release after 1st blink
...release after 2nd blink
...release after 3rd blink
...release after 4th blink
...release after 5th blink
...release after 6th blink
...release after 7th blink
...release after 8h blink
...release after 9th blink
Delete all transmitter codes from memory
For deleting all codes stored in the memory of the receiver the programming key is held down until both LEDs
are lit together (after 3 – 4 seconds).
The key is released and pressed again to confirm the deletion of the complete memory.
The completion of the memory formatting is confirmed with alternate blinking of both LEDs.
The setting of the toggle/timer mode for both channels is not affected by this procedure.
c) Functions in normal operation mode
After learning codes from transmitters, both channels of the receiver can be controlled independent of each
other according to the configured operation modes.
• The yellow LED for Ch1 / Ch2 indicate the current status of the associated relay.
• If the LED is lit, the terminals 'NO' and 'C' of this channel are connected electrically.
• If the LED is dark, the terminals 'NC' and 'C' of this channel are connected electrically.
• The 3-pin terminal block on the left is for Ch1, the terminal block right of it is for Ch2
Note about maximum range to be obtained:
The functional range is up to 50 meters under best conditions but could be limited by objects blocking the
line of sight between transmitter and receiver. Other RF-noise on the same frequency (e.g. from babyphone,
wireless thermometer, or other 433 MHz devices) could also limit the effective range of the remote set.
Declaration of Conformity (DOC)
Conrad Electronic SE, Klaus-Conrad-Straße 1, D-92240 Hirschau hereby declares that this product
conforms to the 2014/53/EU directive.
Disposal
Technical Data
Features ............................................... 4-buttons, activity LED
Dimensions ........................................... 30 x 58 x 12 mm
RF-frequency ........................................ 433 MHz
Transmission power.............................. 10 mW ERP (as req. CE / RED )
Transmission distance .......................... 50 m (line of sight)
Function
Battery .................................................. Type 27 A (12 V Alkaline)
Learning codes for Ch1
Learning codes for Ch2
Exit learning mode
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com). All rights
including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data
LED
Ch 1 LED blinking
Ch 2 LED blinking
LED
slow blink sequence
PLEASE DO NOT EXCEED THE MAXIMUM VOLTAGE OR CURRENT RATING FOR THE
RELAY CONTACTS
Click on the following link to read the full text of the EU declaration of conformity: www.conrad.
com/downloads
Select a language by clicking on a flag symbol and enter the product order number in the search
box. You can then download the EU declaration of conformity in PDF format.
Electronic devices are recyclable waste and must not be disposed of in the household waste. At
the end of its service life, dispose of the product in accordance with applicable regulatory
guidelines.
You thus fulfill your statutory obligations and contribute to the protection of the environment.
processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This publication
represent the technical status at the time of printing.
Copyright 2018 by Conrad Electronic SE.
Function
Setup mode for Ch1
Setup mode for Ch2
Function
choosing mode
toggle mode
0.5 sec. timer
5 sec. timer
30 sec. timer
1 min. timer
5 min. timer
15 min. timer
30 min. timer
1 hour timer
*1839712_v1_1018_02_dh_m_en