Hold-open systems
Select and maintain your hold-open system components: Explore sets, control units, electromagnetic door holders, detectors and operating devices, plus replacement parts and maintenance accessories. Choose the product category for your existing system or required equipment.

Passenden Produktbereich auswählen
Sets and control units
- Component sets: selected components for different door arrangements, including RZ-24 and wireless sets.
- RZ-24 control units: different versions, related components and replacement parts.
- RZ3 controls: control units, assemblies and replacement parts for this product range.
Detectors, operating devices and door holders
- Smoke and heat detectors: smoke, heat and multisensor detectors for their specified systems.
- Manual release buttons and controls: buttons and other components for local operation.
- Electromagnetic door holders: different designs, holding forces and mounting options.
- Armature plates: matching counterparts for electromagnetic door holders.
Accessories, replacement parts and maintenance
Find detector bases, brackets, batteries and other replacement parts under accessories. For testers, detector removal tools, test spray and documentation, visit testing equipment and maintenance accessories.
Choose components to match your system
Compare the exact model designation, device version and included components. Select the component combinations specified by the manufacturer for the particular system. When choosing a set, also check which additional parts your installation requires.
