COMET SA200A – Magnetic Contact for Doors/Windows

COMET SA200A – Magnetic Door/Window Contact 

The COMET SA200A is a reliable magnetic switch (reed contact) for monitoring doors, windows, gates, or flaps – ideal for alarm systems, building automation, Multiloggers, or any application requiring detection of open/closed states. The contact consists of two parts: a magnet and a reed switch inside a plastic housing. When the two components approach each other (up to 30 mm switching distance), the contact opens or closes – perfect for binary input signals.

The compact plastic housing (49 × 14 × 13 mm) is robust and discreet. The wires are connected directly to terminals inside the housing – no fixed cable output, giving maximum flexibility for wiring. The SA200A is designed for indoor environments and operates reliably in non-aggressive conditions. It is the ideal accessory for COMET Multiloggers (M13xx series) or other systems with binary inputs.

The sensor is easy to install (e.g., with adhesive or screws) and reacts instantly to open/close events. No power consumption in standby mode – energy-efficient and maintenance-free. The SA200A is a cost-effective solution for intrusion detection, access control, or process monitoring – made by COMET.

Why the COMET SA200A is the best magnetic contact:

• 30 mm switching distance – flexible even with wider gaps
• Binary output – directly connectable to alarm systems or Multiloggers
• Terminal connection inside the housing – custom cable length & easy wiring
• Compact size 49 × 14 × 13 mm – discreet & space-saving
• Plastic housing – durable & corrosion resistant
• No current consumption in idle mode – energy efficient
• Simple installation – adhesive or screw mounting
• Compatible with Multilogger – see manual
• Original COMET quality
• 30-month warranty

Technical Data SA200A:

• Type: Magnetic contact (reed switch)
• Switching distance: max. 30 mm
• Output: Binary (potential-free contact)
• Connection: Terminal blocks inside housing (no fixed cable)
• Housing material: Plastic
• Dimensions: 49 × 14 × 13 mm
• Environment: Indoors, non-aggressive
• Compatibility: Binary inputs, Multilogger M13xx (see manual)
• Warranty: 30 months

Perfectly suited for:

• Doors & windows in alarm systems
• Hatches & gates in production areas
• Server & technical rooms
• Warehouses & offices
• Building automation & smart home applications
• Access control & intrusion detection
• Integration with COMET Multiloggers
• Process monitoring (open/closed status)

Installation – quick and easy

Attach the magnet to the moving part (door/window) and the reed contact to the fixed frame (max. 30 mm distance). Connect the wires to the terminals and route them to the alarm system or Multilogger – done. No power supply required (passive device).

Available versions:

• Cable length 2 meters
• Cable length 5 meters
• Cable length 10 meters
• Cable length 15 meters
• Cable length 20 meters

Summary:

• Magnetic door/window contact
• Connectable to binary inputs
• Plastic housing
• Dimensions: 49 × 14 × 13 mm
• Operating distance: 30 mm

Scope of delivery:

• COMET SA200A magnetic door/window contact – cable length as selected