(ii)Low Battery beeps (Model Ei 405TY & Ei405TYC only) The unit is giving a short beep every 40 seconds and the red light flashes at the same time for longer than 1 hour. (If the unit beeps without the red light flashing at the same time see Cleaning your Smoke Alarm above).

(iii)The unit fails to sound the horn loudly when the test but- ton is pressed.

Before the Smoke Alarm is discarded, remove from the mounting plate (Ei405TY & Ei405TYC only) to stop beeps or the possibility of the unit alarming. With the Ei405 & Ei405C just disconnect the battery. Do not put the Smoke Alarm into a fire.

7. HARDWIRE INTERCONNECTION

(Models: Ei 405C & Ei 405TYC only)

Sometimes it may be required to interconnect to battery pow- ered Ei Electronics Smoke Alarms which do not have wireless interconnect. If any of the interconnected units detect smoke the Ei 405C & Ei 405TYC model will send a Radio alarm signal.

Ei 405TYC

e.g. Ei 105C

e.g. Ei 3105TYCH

Figure 8

A maximum of twelve (Ei 405C, Ei 405TYC, Ei 3105TYC, Ei 100TYC, Ei 105C, Ei103C or Ei 100C only) Smoke / Heat Alarms may be wired together such that when one unit sens- es smoke all other units sound a warning. This helps ensure smoke alarms will be heard. Do not connect to any other device as it may damage the unit or affect performance.

Figure 9

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Ei Electronics Ei 405TYC, Ei 405C manual Hardwire Interconnection

Ei 405C, Ei 405TYC, Ei 405TY specifications

Ei Electronics has established itself as a leading brand in the field of smoke alarms and carbon monoxide detectors. Among its impressive lineup, the Ei 405TY, Ei 405TYC, and Ei 405C models stand out for their innovative design and advanced technologies, ensuring safety in residential and commercial environments.

The Ei 405TY model is a premium smoke alarm that utilizes a state-of-the-art optical sensing technology. This technology enhances the alarm's ability to detect slow-burning fires, such as those caused by smoldering materials. One of the primary features of the Ei 405TY is its high-performance photoelectric chamber, which minimizes false alarms while maximizing fire detection reliability. It is equipped with an intelligent feature that allows for a resettable alarm, providing peace of mind in everyday situations. The alarm also produces a clear, loud alert, ensuring that occupants are promptly notified in case of danger.

The Ei 405TYC model builds upon the features of the Ei 405TY but adds a significant layer of versatility with its built-in carbon monoxide detection capability. This dual-functionality allows for comprehensive protection against both smoke and carbon monoxide, a colorless and odorless gas that poses serious health risks. The Ei 405TYC incorporates advanced microcontroller technology, which ensures accurate detection and notifications for varying levels of CO concentration. Additionally, it features a visual indicator that provides information about the alarm's operational status, enhancing its user-friendliness.

The Ei 405C model is designed for those seeking a reliable and straightforward smoke detection solution. It employs the same optical sensing technology found in the Ei 405TY but without the carbon monoxide detection feature. This model excels in smaller spaces, where it serves effectively as a dedicated smoke alarm. Its easy installation and maintenance are supported by a user-friendly design, making it an ideal choice for homeowners or property managers looking for a cost-effective safety solution.

All three models are designed with long-lasting battery life, ensuring they remain functional even during power outages. Additionally, they feature a tamper-proof design to prevent accidental removal. The Ei Electronics alarms are compliant with international safety standards, emphasizing the brand's commitment to quality and reliability in personal safety. Overall, the Ei 405TY, Ei 405TYC, and Ei 405C models represent a blend of advanced technology and practical features, providing essential fire and carbon monoxide detection for peace of mind in any environment.