Dahua HY-SA40A Standalone Smoke Alarm with Split-Spectrum Sensor
Most orders ship within 30 working days. Stock status shown on this page is not real-time.
After you place your order, please check the order confirmation email from our team. We will confirm stock, lead time and shipping before dispatch. If an item is out of stock, we may propose a compatible replacement model for your approval.
Working to a project deadline? Contact us before ordering.
Our team can confirm specifications, stock and pricing before you order.
Email sales@icctvzone.com or contact us.
Couldn't load pickup availability

Need help choosing the right model? I can confirm specifications, stock and lead time before you order.
HY-SA40A
Standalone Smoke Alarm
> Test and silence features in one single button, silenced by a working infrared remote controller
> Loud sound output over 85 dB(A) at 3 meters
> Low quiescent current consumption
> Surface-mount device (SMD) circuit board design
> Low battery warning signal
> Sealed lithium battery, easy installation

Order & Pricing Information for Surveillance Products
Please note the following important details when ordering surveillance products from ICCTVZONE:
- Order confirmation: After you place an order, please check the confirmation email from our team. We will confirm stock, lead time and shipping before dispatch.
- Stock & replacements: Inventory status is not real-time. If an item is out of stock, we may propose a compatible replacement model for your approval.
- Final pricing: Prices shown are indicative. The final price is confirmed on the Proforma Invoice (PI) after order confirmation.
- Project-specific pricing: Some products are configured for project requirements; pricing may vary with quantity and specification.
- Minimum order: A minimum order value may apply to non-stock or project items; our team will confirm before processing.
- Shipping costs: Shipping is calculated separately and added to the order total.
- Duties & taxes: Import duties, taxes and customs clearance fees are not included in the product price or shipping quote. These charges are the customer's responsibility.
- Genuine products: We supply genuine products from leading brands with current firmware.
- Technical support: Our engineers provide pre-sales and after-sales technical support.
- Warranty: Warranty terms depend on the product and order type; we will confirm the applicable coverage in writing.
Questions? Contact sales@icctvzone.com.
Product Features
What this model is for, what it does well, and what to confirm before it goes on a project.
Standalone smoke detection in indoor rooms where a self-contained alarm with a sealed lithium battery is required.
Split-spectrum sensor technology supports dependable smoke detection for everyday indoor protection.
A single button handles test and silence functions, and the alarm can also be silenced with a working infrared remote controller.
Sound output exceeds 85 dB(A) at 3 meters, helping occupants notice an alarm quickly.
Know More Key Tech
Five PDF guides from our technical library — coverage, AI capabilities, deployment scenarios and project planning.
PDF180° / 360° Panoramic PTZ Camera
Panoramic coverage and PTZ positioning for wide-area surveillance.
View PDF
PDFWizMind
AI-powered cameras and recorders for demanding projects.
View PDF
PDFSmart Retail Solution
Loss prevention, people counting and store analytics.
View PDF
PDFBusiness Reopening
Access control, screening and occupancy workflows.
View PDF
PDFSMB Safety Protection
Right-sized security for small and mid-sized businesses.
View PDF