The Genie 37220R is a factory-replacement Safety Beam Sensor Set for Genie residential garage door opener systems. Infrared transmitter and receiver pair provides UL-required entrapment protection. Self-diagnostic capability blinks opener light to signal alignment or wiring faults. Compatible with: Genie Intellicode garage door openers manufactured 1993 and later, Genie residential garage door openers requiring safety sensors. This is a genuine OEM Genie replacement part designed and tested to restore original opener performance.
A: The 37220R (GSTB-BX) and 37334R are fully equivalent and directly interchangeable - they are the same Safe-T-Beam system sold under two part numbers.
A: No. This system is designed only for Genie residential garage door openers manufactured in 1993 or later that already support safety sensor connections. It cannot upgrade older openers that have no sensor port.
A: The 37220R uses non-polarized wiring, so either wire can connect to either terminal. Standard bell wire (two-conductor low-voltage wire) is required and must be supplied by the installer.
A: The system includes a self-diagnostic feature. If the beam is blocked, misaligned, or wiring is faulty, the opener light will blink a specific number of times to indicate the fault condition.
A: Mounting brackets and screws are included in the box. The rounded sensor housing design helps resist minor misalignment. Sensors should be mounted no more than 6 inches above the floor on each side of the garage door opening.
