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Door Sentinel with reminder feature

Art.no 36-3931  Model DX-H105

Please read the entire instruction manual before use and save it for future reference. We reserve the right 
for any errors in text or images and for making any necessary technical changes to this document. If you 
should have any questions concerning technical problems please contact our Customer Services. 

Safety

Caution:

•  The high sounding alarm may cause hearing 

damage if used improperly.

•  The sentinel is not intended for outdoor use.
•  The device contains small components.  

Keep out of reach of children under the age of 3.

Product description

•  3 different audio options: Dingdong chime, 

alarm or a voice recorded message.

•  The dingdong chime and the alarm sound 

when anyone comes through the door.

•  The recorded message (up to 10 seconds) 

can be used as a reminding system or to  
leave a message.

Inserting the battery

When the door sentinel’s audio signals become 
weak it is time to change the battery.
1.  Loosen the battery cover screw.
2.  Slide the battery cover downwards.
3.  Insert the battery according to the polarity 

markings in the compartment. (1 × 9 V battery).

4.  Replace the battery cover.

Operation

1.  Turn on the door sentinel by sliding the [ ON/OFF ] 

control to the 

ON

 position. The red LED 

should then come on.

2.  You must then wait 30 seconds before 

the door sentinel activates. Once the red LED 
starts flashing (once every 10 sec.) the device 
will be ready to use.

3.  During activation, press [ MODE ] the required 

number of times to choose between the chime, 
alarm or recorded message options. A green 
LED will light above your selection. (You can 
press [ PLAY ] to listen to your selection.)

Dingdong chime (pre-installed)

Whenever the door sentinel senses movement, 
the green LED will light and the chime will sound. 

Alarm

Whenever the door sentinel senses movement, 
the red LED will light and the alarm will sound for 
20 seconds.

Recorded message

Recording a message:
1.  Depress [ REC ] while you record your message. 

It is advisable to hold the sentinel close to  
your mouth for the best recording quality.  
The green LED will flash during recording.

2.  Release [ REC ] once you finish recording your 

message. The message duration is max.  
10 seconds. If you go over this time, recording 
will stop automatically and the LED will stop 
flashing.

Whenever the door sentinel senses movement 
the green LED will light and the recorded message 
will be played. 

Placement

Place the door sentinel approx. one metre above 
floor level.

Disposal

Follow local ordinances when disposing of this 
product. If you are unsure about how to dispose  
of this product contact your municipality.

Specifications

Battery 

1 × 9 V/6LR61

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