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The NOHMI BOSAI FDL 551B65 Heat Detector is a robust industrial fire detection device engineered to sense abnormal temperature increases and trigger alarms in safety, fire protection, and environmental monitoring systems. Designed for dependable operation in commercial, industrial, and institutional environments, this heat detector provides accurate and timely detection of elevated heat levels — helping protect personnel, equipment, and facilities from fire‑related hazards. Manufactured by NOHMI BOSAI, a respected leader in fire protection technology, the FDL 551B65 delivers long‑term reliability, stable performance, and seamless integration with fire alarm control panels.
Key Features:
Industrial heat detector for detecting elevated temperature conditions
Provides reliable activation for fire alarm and safety systems
Engineered for accurate response to heat increases, minimizing false alarms
Durable construction for long‑term performance in industrial environments
Compatible with standard fire alarm control panels and signaling systems
Specifications:
Model: FDL 551B65 Heat Detector
Brand: NOHMI BOSAI
Function: Heat sensing and alarm initiation for fire safety systems
Industrial Applications: Factories, warehouses, commercial buildings, institutional facilities, industrial sites
Construction: Industrial‑grade rugged housing for reliable operation
Integration: Interfaces with fire alarm control panels and safety circuits
The NOHMI BOSAI FDL 551B65 Heat Detector delivers dependable, precise heat detection — making it an essential component of industrial fire safety, building protection, and life‑safety systems.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
