£52.19

This is the most expensive it has ever been. Walk away.

£52 today · previous high £52 · all-time low £47

Defender Security 24V DC Hold Open Magnet, Flush Mount, Satin Stainless Steel – Fire & Smoke Door Safety, 11kg Holding Force – DEF-0501F-1B

Amazon

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 55 days · 55 data points (no recent data)

Historical
Generating forecast…
£52.19 £46.89 £48.04 £49.20 £50.36 £51.52 £52.67 23 July 2026 05 August 2026 19 August 2026 01 September 2026 15 September 2026
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DEF-0501F-1B

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Price Distribution

Price distribution over 55 days • 2 price levels

Days at Price
Current Price
48 days 7 days · current 0 12 24 36 48 £47 £52 Days at Price

Price Analysis

Most common price: £47 (48 days, 87.3%)

Price range: £47 - £52

Price levels: 2 different prices over 55 days

Description
The Defender Security DEF-0501F-1B is a high-quality 24V DC hold-open magnet, specifically engineered for fire and smoke doors. Ideal for both new and existing installations, it interfaces effortlessly with fire alarm systems, smoke detectors, and sprinklers. The flush mount design allows for a clean, professional installation, while the satin stainless steel finish ensures durability and resistance to wear and corrosion. Featuring an integral test switch and a strong 11kg holding force, this magnet provides reliable performance for safety-critical applications.

Key Features

Reliable Hold-Open Magnet – Designed for use on self-closing fire and smoke check doors to maintain safe and controlled access.

Integrates with Fire Safety Systems – Can interface seamlessly with fire alarm control panels, smoke detectors, sprinklers, or other safety warning systems.

Robust Stainless Steel Finish – Satin stainless steel construction ensures durability, corrosion resistance, and a professional appearance.

Convenient Flush Mount Design – Discreet installation that sits flush with the door or frame for a clean, secure fit.

Built-In Test Switch – Easy testing and maintenance to ensure reliable operation.

Product Specifications
Brand
Defender Security
Model
DEF-0501F-1B
ASIN
B083GGFZQF
Category
Business, Industry & Science > Industrial Electrical > Controls & Indicators > Industrial Switches > Magnetic Switches
Domain
Amazon UK
Listed Since
03 January 2020

Barcode

No barcode data available

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