OTIS Leveling Sensor GBA22439E2  GEN2 Traction Belt PRS Headreader  Precise Floor Position & Speed Detection Original Elevator Spare Parts

Precise Floor Leveling (Core Role)
Reads magnetic strip data on the GEN2 traction belt, delivering real-time absolute position feedback to the main controller. Achieves ±1mm ultra-precise leveling, eliminating tripping hazards and improving passenger safety & comfort.
Real-Time Speed Monitoring
Detects belt movement speed and direction, providing high-resolution speed signals to the drive system. Ensures smooth start, constant-speed operation, and jerk-free stopping, preventing elevator shaking or swaying.
Position Reference & Calibration
Acts as the elevator’s primary position reference, enabling the control system to calculate floor height, change-speed points, and terminal limits. Critical for preventing overtravel, top landing, or bottoming risks.

Fault Diagnosis & System Protection
Monitors signal integrity in real time; triggers fault alarms & safety stops for abnormal signals (e.g., sensor failure, belt deviation). Supports predictive maintenance, reducing downtime and repair costs.
Perfect Compatibility with GEN2 System
Original OTIS part, 100% compatible with GEN2 controllers and inverters. No complex calibration needed after replacement—plug-and-play, ideal for hotels, offices, residential buildings, and hospitals.