# ZeroErr eCoder35 RS485 Absolute Magnetic Ring Encoder, 35 mm Bore

![ZeroErr eCoder35 RS485 Absolute Magnetic Ring Encoder, 35 mm Bore](https://parts.trymaglev.com/img/ac-zeroerr-ecoder35.webp)

Large-bore (35 mm) ZeroErr ring encoder with a 150° arc readhead, up to 20-bit, for hollow-shaft arm and humanoid joints.

- Maglev ID: ac-zeroerr-ecoder35
- Brand: ZeroErr
- MPN: eCoder35
- Category: actuators / Joint Encoders
- Origin: CN (maker HQ, factory not confirmed)
- Maker: ZeroErr (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 9031.80.80.85 (typical)
- MOQ: unknown · Lead time: unknown
- Confidence: REPORTED

## Price
- 1+: $210 (distributor, 2026-10-30, https://aifitlab.com/products/zeroerr-ecoder35-magnetic-encoders; single-turn RS485 variant; backordered)

## Specifications
- Resolution: 17, 19 or 20-bit selectable
- Interface: RS-485
- Type: Axial-reading magnetic ring (35 mm ID / 55 mm OD) + 150° arc readhead; battery-backed multi-turn option
- Bore: 35 mm

## Links
- Product: https://aifitlab.com/products/zeroerr-ecoder35-magnetic-encoders
- Datasheet: none
- CAD: none

## Equivalents
- RLS AksIM-2 Off-Axis Absolute Rotary Encoder (ac-rls-aksim-2)

## Sources
- https://aifitlab.com/products/zeroerr-ecoder35-magnetic-encoders (variants, price, <0.05° tolerance, ±5" repeatability, dimensions, stock)