DHI-HY-SA40A WIRELESS SMOKE ALARM

KSh 1,500~~KSh 1,600~~-6%

Excl. 16% VAT · KSh 1,740.00 incl. VAT

You save KSh 100

In stock · ready for dispatch

Delivery countrywideFast delivery within Nairobi · 1–3 working days to other towns via courier

Pay with M-Pesa or on deliveryNairobi customers can pay when the item arrives

Manufacturer warrantyGenuine product · 14-day returns on faulty items

Pick up in storeMontana Mall, Ground Floor, Shop No. 11

Need it installed?Certified technicians, fixed quotes.

About the DHI-HY-SA40A WIRELESS SMOKE ALARM

The Dahua DHI-HY-SA40A Standalone Smoke Alarm uses advanced split-spectrum photoelectric sensing to detect smoke quickly and accurately. It features a loud 85 dB alarm, visual LED alerts, test & silence button, and a sealed 10-year lithium battery for maintenance-free indoor fire protection—ideal for homes, apartments, and dormitories.

The Dahua DHI-HY-SA40A Standalone Smoke Alarm is a reliable indoor safety device designed to continuously monitor smoke concentration and provide early fire warning. Using advanced split-spectrum photoelectric sensor technology, it delivers fast response, stable performance, and very low false alarms.

Equipped with a high-volume built-in buzzer (85 dB at 3 meters) and clear LED indicators, the alarm instantly alerts occupants through visual and audible warnings when smoke levels reach the alarm threshold. A sealed 10-year lithium battery ensures long-term, maintenance-free operation, making it ideal for homes, apartments, dormitories, and offices.

About this product

The DHI-HY-SA40A WIRELESS SMOKE ALARM is a fire or safety system device from Dahua. It forms part of a system that warns people early about danger, which gives them more time to respond.

What to check before you buy

Placement matters: follow the manufacturer's guidance and any building requirements for your premises. Where the device connects to a panel, check that it is compatible with the panel you use. Test the system regularly, and replace batteries on schedule, so that it works when it is really needed. Secom World can supply and install it for you, so ask us to look at your site if you would like advice on the setup.

Buying from Secom World

Our shop is at Montana Mall, Ground Floor, Shop No. 11, Nairobi, open Monday to Saturday, 8:00am to 6:00pm. You can collect the same day, get delivery in Nairobi the same or next working day, or use our countrywide courier, which takes 1 to 3 working days. Call or WhatsApp 0724 037 449 for stock, advice or a quote.

Specifications

Brand	Dahua
Model	DHI-HY-SA40A
Detection Type	Smoke
Sensor Type	Photoelectric
Alarm Volume	85 dB(A) at 3 m
Alarm Modes	Smoke alarm, fault warning, low-battery warning
Silence Duration	9 minutes
Power Supply	3 V CR123A lithium battery (sealed, non-replaceable)
Battery Life	Up to 10 years
Coverage Area	20–40 m² (ceiling height < 8 m)
Operating Temperature	–10 °C to +55 °C
Material	PC + ABS
Color	White
Installation	Ceiling mount
Weight	110 g
Standby	Green LED flashes once per minute
Alarm	Red LED flashes once per second
Fault	Red LED flashes twice per minute

Questions about this product

What is the DHI-HY-SA40A WIRELESS SMOKE ALARM used for?

The DHI-HY-SA40A WIRELESS SMOKE ALARM is a fire or safety system device from Dahua. It forms part of a system that warns people early about danger, which gives them more time to respond.

What are the main specifications of the DHI-HY-SA40A WIRELESS SMOKE ALARM?

Model: DHI-HY-SA40A; Detection Type: Smoke; Sensor Type: Photoelectric; Alarm Volume: 85 dB(A) at 3 m; Alarm Modes: Smoke alarm, fault warning, low-battery warning. See the full details on this page, or ask us to confirm anything specific.

How often should I test safety alarms?

Test them regularly and follow the manufacturer's guidance. Replace batteries on schedule so the system works when needed.

Where can I buy the DHI-HY-SA40A WIRELESS SMOKE ALARM in Kenya?

You can buy it at Secom World, Montana Mall, Ground Floor, Shop No. 11, Nairobi, or order on this page. Collection is the same day, Nairobi delivery the same or next working day, and countrywide courier takes 1 to 3 working days.

Can Secom World install the DHI-HY-SA40A WIRELESS SMOKE ALARM?

Yes. Secom World supplies and installs security systems for homes and businesses across Kenya. Call or WhatsApp 0724 037 449 to arrange a site visit or a quote.