Ei Electronics Smoke Alarm Ei405TY RF User Manual

TEN YEAR BATTERY POWERED 9V  
RF Communication  
Model Ei405TY RF Optical  
RF wireless interconnect  
Unique house coding feature  
Visual RF transmission indicator  
High performance optical chamber with integral  
insect screen  
Test/Hush button  
Advanced suppression and calibration technology  
Radio transmitter and receiver in each alarm  
Built in auto self test feature  
Powered for life with lithium batteries  
Low power cell warning  
Kitemarked to BS EN 14604:2005  
5 year guarantee  
Product Description  
Operation  
The Ei405TY is an Optical Smoke Alarm powered by  
long lasting lithium batteries designed to last the life of  
the product. It is part of the RadioLINK range of RF  
alarms. The RF signal will wirelessly interconnect the  
Ei405TY to other RadioLINK products  
The red indicator will flash every 40 seconds to  
show that the detector has performed an automatic  
self test  
In normal standby mode the blue indicator will light  
to indicate transmission of an RF signal  
The Ei405TY uses advanced radio transciever  
technology with unique software coding to transmit and  
receive the radio signals. The transmissions are  
frequency modulated (FM) and use Manchester coding  
to ensure robust signal integrity and avoid signal noise  
interference  
In code mode, the blue indicator will flash to indicate  
the number of other RF alarms that have been  
“learned” in the system  
The red indicator will flash rapidly to show an alarm  
condition for the smoke detector  
The RF range can be extensively improved by converting  
the alarm into a “repeater” i.e. re-transmission of the RF  
signals. The Ei405TY series alarms can be used as a  
stand alone wireless interconnect system or be  
The “Test/Hush” button will either silence false  
alarms or perform a unit self test  
In “Hush” mode the alarm enters a ten minute period  
of reduced sensitivity and the red light flashes every  
10 seconds and then resets  
incorporated into existing home security systems  
The Ei405TY has other advanced features such as high  
performance optical chambers fitted with integral insect  
screens to reduce the chances of false alarms, as well  
as the ability to wireless interconnect up to twelve alarms  
to allow all alarms to sound if just one of the  
When interconnected to other Ei mains powered  
alarms, an alarm on one detector will trigger all other  
interconnected alarms within one second (only the  
triggered alarm will flash a red indicator)  
interconnected alarms should be triggered.  
The smoke detector will emit a beep and the red  
light flashes every 40 seconds to indicate that the  
battery is depleted and needs to be changed  
The Ei405 has built in circuitry to aid suppression of  
voltage transients and RF interference.  
Shannon Free Zone, Shannon, Co. Clare, Ireland.  
Ph.+353 61 471277 Fx.+353 61 471053  
E & OE As our policy is one of continuous product development, we reserve the right to alter product details without prior notice.  
Ei405TY DataSht RevB  
 

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