- 3″ (76mm) Gap for overhead doors in both industrial and residential situations
- Adjustable for door-channel widths from 2~2-1/2″ (51~64 mm)
- Rugged aluminum housing
- 36″ (91cm) Wire leads enclosed in armored cable
- Contact reed switch is iridium-plated to have a high melting point and Vickers hardness for higher power handling and longer expected life
- Also available for wide door channel widths of 2-5/8~4″(66~101 mm): SPST closed loop circuit (SM-4201-LWQ)
- Mounting brackets included
- Lifetime limited warranty
Optional Accessory – SM-8201-LWQ
- L-bracket for door channels up to 4″ (102mm)







