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contact>>date：2017-08-16 10:16
BRT-805 is a timer switch integrated with a sound sensor. It automatically turns on the load when
the sound level is above a preset threshold and keeps the load on until a delay-off time runs out.
It is designed for easy installation and retrofit directly fit into standard wall box with no need for
the neutral.
Loads up to 40W 12V DC;
Adjustable delay-off time from 10 seconds to 15 minutes;
Ambient light override. Automatically measures the ambient light level and there is no sound
trigger on when brightness is above a threshold which is adjustable by end users;
ABS-V0 flame resistance material; and
Classical 86 series design and high quality build.
Fig. 1 and Fig. 2 show the front view and the back view of BRT-805 timer switch respectively.
The switch has a sound detector and a light detector on the front tuning screws for setting up
delay-off time and ambient light override on two sides and terminal blocks for wiring on the back.
BRT-805 timer switch can only be connected to 12V DC power supply and the load needs to be
12V DC as well. Fig. 3 shows the wiring diagram.
Fig. 4 shows the step-by-step installation instructions. There are three easy steps:
Step one: Use a screwdriver to pry off the front plate in position A;
Step two: Wiring according to the diagram and the labelled ports of the switch; and
Step three: Install screws and front plate.
Once properly wired BRT-805 timer switch needs two adjustments for the first time operation: set
up the delay-off time and set up the ambient light override.
There are two tuning screws on the sides of BRT-805 timer switch. Please note that the tuning
range for these two screws is about 120 degrees. Do not use strong force to turn them.
1. Adjust the delay-off time
There is a tuning screw on one side of BRT-805 timer switch. Use a crew driver to tune this screw
to adjust the delay-off time as shown in Fig. 5. The delay-off time can be set from 10 seconds to
< /SPAN>15 minutes.
There is a tuning screw on another side of the switch. Use a crew driver to tune this screw to
adjust the ambient light override threshold brightness as shown in Fig. 6.
Please note that BRT-805 timer switch needs 2 minute warm-up time before it can work normally.
And it is recommended that the switch not be u sed in nois y environ me nt.
BRT-805 timer switch can be used for automatically turning on and turning off various loads on
sound triggers. It is perfect for saving energy and bringing convenience and safety to our daily life
and work. It has wide applications at various locations such as balcony stairwell washroom and
other public places.