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Installation Guide:

Portable Door Chime: MP001/HB702

  Power: 3 x ‘AA’/LR6 1.5V Batteries 

  (Not supplied)

  Range: 100 Metres

  Indoor Use Only

Bell Push: MPT

Power: 1 x 23A 12V DC Battery 

(Included)

IP44 Weather Resistant

Specification

Range Guide

433.92MHz

R&TTE

APPROVED

CH Byron Electrical United Kingdom. www.chbyron.com

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Project Manager

Mr G Hunter

GB: CH Byron

Byron House, Sherwood Rd

Astonfields, Bromsgrove

B60 3DR

UK

[email protected]

9-5 Mon-Fri, Local call charges apply

V1.0 

Tel: 0845 2301231 (UK)

www.chbyron.com

Avoid locating the Bell Push/Chime on or directly 

near metallic surfaces as this may reduce the 

operation range. 

UPVC Door Frames:

When locating the bell push onto a UPVC door, 

always check the operating performance before final 

installation, internal metal frame may affect  

 

    performance.

Tip: Try adjusting the location of the Bell Push to the Left/Right 

or place on external wall. 

Installation Guide: Bell Push

Installation Guide: Chime 

Place the door Chime within the operating range, 

transmission of the wire free signal through 

Walls, Doors and Ceilings etc, may reduce the operating 

range. Chime unit for INDOOR use only.

Diagram for illustration purposes only

1

2

‘CLICK’

1: Using back plate as a 

    template.

2: Making sure UP arrow

    points UP.

  

2: Mark and drill holes.

3: Insert wall plugs and attach

    to wall using screws

    provided.

 

4: Clip the Bell Push on to the

    back plate making sure the 

    Bell Push ‘Clicks’ in to 

    place.

Tip: The Bell Push can be 

installed using a suitable  

double sided adhesive tab or 

tape when drilling is not 

sutiable. 

3

User Hints:

In case of the door chime does not sound, please check the 

followings:

a) Flat batteries in either Push Button or Door Chime. 

b) Wrong battery polarity in either Push Button or Door Chime.

c) For Plug-in Door Chimes make sure the socket is switched on.

d) Bell Push and Door Chime are not paired together, see setup 

    guide. 

e) Materials in between the Bell Push & Chime will reduce the 

    operating range, move the Door Chime closer to the Bell Push  

f) Wire free devices can be affected by external sources e.g. wire 

   free home alarms or power transformers/adapter

Chime Unit

1: Remove old Batteries.

 

2: Insert new batteries, 3 X 1.5V 

    size ‘AA’. 

3: Make sure  ‘+/-’ match the   

    internal markings.

4: Test Chime Kit.

Changing Batteries:

Bell Push:

1: Remove back plate from the

    Bell Push.

 

2: Remove old battery 

3: Replace with new ‘23A’ 12V

    battery.

4: Insert into holder making sure  

    ‘+/-’ match the internal  

     marking

5: Test Chime Kit.

Always dispose of old batteries in an 

environmentally friendly way.

Type R2 Device - device where the sound output is created by the initial 

operation of the control and where the period of sound output continues 

for the designed duration irrespective of condition of the control.

IMPORTANT: 

There are no serviceable parts, do not repair.

 The appliance is not to be used by children or persons with 

reduced physical, sensory or mental capabilities, or lack of experience and knowledge,unless they have been 

given supervision or instruction. Children should be supervised to ensure that they do not play with the 

appliance. 

Address Code:

The MP3 Door Chime, comes preset to a default address code, this 

code may need to be changed if the chime rings due to a 

neighbouring door chime or similar wire free product.

1: Select a new address code in the bell 

    push, by randomly moving the white 

    dip-switch’s.

2: Copy the new address onto the   

    chimes dip-switch’s. Located in the  

    battery compartment of the chime.

3: Test the chime kit by pressing the 

    bell push.

1

6

5

4

3

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ON

Dip

1

6

5

4

3

2

ON

Dip

e.g.

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