Clipsal - Smoke Alarms Photoelectric Smoke Alarm Surface Mount, 220-240 V a.c. Mains Power w. 9V d.c. Battery Backup

Clipsal - Smoke Alarms Photoelectric Smoke Alarm Surface Mount, 220-240 V a.c. Mains Power w. 9V d.c. Battery Backup

Item Number: 755PSMA4

755PSMA4 Photoelectric smoke alarms helps in early detection of smouldering fires, the most common and highest risk type of fire in homes. It can be used as a single mains powered battery backed (with 9 V d.c.) alarm or can be interconnected with other 755 series smoke alarms to give complete home protection.



Qty UoM EAN Colour

Free Introductory Training Module

On installation, maintenance and troubleshooting

Home owner checking their fire alarm
Clipsal Firetek group shot of products and packaging




Fire Tek

Product brand


Product or component type

smoke detector

Device application

early detection of smouldering fires and open fires

Sustainable offer status

Green Premium product


Type of packing




Function available

local alarm| hush function| self-test of smoke detection

Control type

button (test/hush function)

Operating distance

50 m line of sight|140 m in free field

Local signalling

visual: 1 LED (red) for warning and low battery|visual: 1 LED (green) for ON status|sound: signal|sound: alarm

Connections - terminals

screw terminal (line) - 2 x 1.5 mm²|screw terminal (neutral) - 2 x 1.5 mm²|screw terminal (earth loop) - 2 x 1.5 mm²|screw terminal (interconnect) - 2 x 1.5 mm²

Type of installation


Device mounting


Mounting support


Fixing mode

by screws


47 mm

Ip degree of protection


Ambient air temperature for operation

0...45 °C

Ambient air temperature for storage

-20...60 °C

Relative humidity

5...95 %

Product certifications



ISO 8201|AS 3786:2014|AS/NZS 60950.1|AS/NZS 60065

Reach regulation

Reference contains Substances of Very High Concern above the threshold

Eu rohs directive

Compliant with Exemptions

Mercury free


Rohs exemption information


China rohs regulation


Environmental disclosure


Circularity profile






Package 1 bare product quantity


Electronic sensor type

photo-electric sensor

[us] rated supply voltage

220...240 V AC 50 Hz

Battery life

1 year(s)

Output voltage limits

interconnection: 6.5...20 V

Type of alarms

low battery at 6.9...7.5 V

Detection type


Number of devices

40 for wired alarm

Response time

< 30 s

Noise level

85 dB at 3 m, minimum

Time delay range

10 min (hush)|10 h (do not disturb)


140 mm

Unit type of package 1


Number of units in package 1


Package 1 height

5.3 cm

Package 1 width

14.5 cm

Package 1 length

14.5 cm

Package 1 weight

331 g
Show all specifications

Frequently Asked Questions

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How do I silence my 755PSMA4 Range of Smoke Alarms?

To silence the 755PSMA4 Range you need to press and hold the button on the front of the smoke detector for 10-15 seconds not only will it silence the alarm but it will also reset it.
Some of the key features are:
  • New look design with easy to use test/hush button
  • Easy installation and maintenance
  • Wired interconnect feature (up to 40 alarms)
  • Optional relay or wireless interconnect bases
  • Robust digital design

For further information please visit

What causes the smoke alarm to continuously beep ?

The dust inside the smoke alarms can cause a continuous beep.
Please follow the regular maintenance check to avoid this.

Vacuum the smoke alarms using a soft brush attachment-
Keeping your smoke alarm free of dust particles, dirt, kitchen grease or cobwebs will help you reduce false alarms and ensure any smoke can easily reach the internal sensing chamber.

Clean and wipe down around unit-
Clean around the smoke alarm unit and remove any insects or other contamination which may have occurred. Spray bug repellent on a cloth and wipe the ceiling around the smoke alarm to act as a future bug deterrent. Clean every 3-6 months to mitigate insect ingress.


Attached is the Clipsal smoke alarm troubleshooting guide for more info.

Clipsal Smoke Alarms.png

What is the minimum cable size to wire a 755PSMA4 smoke alarm?

The minimum cable size to wire a 755PSMA4 smoke alarm is 1mm. 
Each terminal can accommodate 2 X 1.5mm2 cables
See attached letter referring to minimum wiring size.
See link for further product information:

How to troubleshoot 755PSMA4 Smoke Alarm if it is beeping after replacing the battery ?

Red LED flashing once every 40 seconds with one audible beep is a low battery warning.
Replace the 9 V d.c. battery with a new one. (It is recommended to replace the battery annually)
To snooze a low battery beep for 10 hours, press the Test/Hush button for 3 seconds.

And if the smoke alarm continues to beep once every 40 seconds after a new battery replacement,
  • Unclip the alarm from the base.
  • Remove the new battery.
  • ​​​Press and hold the test button for 20 seconds. 
  • Replace the new battery and clip it back to the base.

755PSMA4 - Operating Elements.png
Firetek group shot


Clipsal's Fire Tek range helps protect the most valuable assets; family, friends and the home.

They are backed by the SAI Global 5 ticks certification of quality, offering robust designs for reliability, ensuring early detection and warning from hazardous smoke and fire.

The Australian Building Code mandates all new homes must have AS3786:2014 compliant smoke alarms installed, interconnected and hard wired to mains power.

By having Fire Tek's smoke alarms installed, you will have the best chance of escaping the devastating effects of a house fire.