Pedal PAS sensor – closed type, 12 magnets

Closed-loop PAS (Pedal Assist System) sensor with 12 magnet rings – accurately detects pedal rotation and smoothly activates engine assistance. Ideal for e-bikes that use the PAS signal for control.

Key benefits

• 12 magnet precision – faster response, smoother assistance.
• Enclosed design for better protection against dirt and moisture.
• Easy installation – attaches to the elbow/axle according to the bike design.
• Wide compatibility – works with most 36/48 V e-bike controllers (KT, Lishui, etc. requiring PAS).

Specifications

• Type: closed PAS sensor
• Magnets: 12 pcs.
• Output: pulses to the controller
• Power supply: controller PAS line (standard 5 V)
• Housing: dust and splash proof

Installation

• Mount the sensor so that the distance to the magnet ring is small and constant.
• Follow the arrow (direction of rotation) on the ring – the wrong direction will reduce sensitivity.
• Connect the PAS/5V/GND leads to the corresponding connectors on the controller.
• Check the PAS operation in test mode (wheels up, light pedalling).

FAQ

Will it fit my controller?
If the controller has a PAS input (3 wires: +5 V, GND, signal) – yes.

How is 12 magnets better than 5/8?
Higher pulse frequency → faster motor response and smoother low cadence assistance.

Is the sensor rainproof?
Closed construction provides better protection against dirt and splashes, but avoid full immersion.

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