ZeroErr eCoder20 RS485 Absolute Magnetic Ring Encoder, 20 mm Bore
ZeroErr · MPN eCoder20 · Maglev ID ac-zeroerr-ecoder20
CN Maker in China, factory not confirmed unknown REPORTED
ZeroErr's 20 mm through-hole magnetic ring encoder with RS-485, single- or multi-turn, for mid-size joints that route cables through the axis.
Specifications
| Resolution | 17-bit or 19-bit (family spec 17-21 bit + 16-bit multiturn counter) |
|---|---|
| Interface | RS-485 (protocol stated compatible with Tamagawa) |
| Type | Axial-reading magnetic ring + readhead, 20 mm through-hole; battery-backed multi-turn option |
| Bore | 20 mm |
Who makes it
MakerZeroErr
Based inChina
RoleBrand owner
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
CN
37.5%
TW
10%
VN
12.5%
IN
10%
JP
12.5%
KR
12.5%
DE
10%
MX
10%
US
0%
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
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Compliance
| HTS classification | 9031.80.80.85 typical, not a ruling |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
Equivalents from other makers
RLS AksIM-2 Off-Axis Absolute Rotary EncoderRLS (Renishaw associate) · SI · $238.97
ZeroErr eCoder11 RS485 Absolute Magnetic Ring Encoder, 11 mm BoreZeroErr · CN · $90
KingKong MPT Series Robot Joint Magnetic Encoder (Single)KingKong Technology · CN · $280
Netzer DS-58 Hollow-Shaft Absolute Electric EncoderNetzer Precision · IL · QuoteSources
- https://rcdrone.top/products/zeroerr-ecoder20-magnetic-encodersvariants, price, <0.06° tolerance, ±10" repeatability, 12,000 rpm
- https://aifitlab.com/products/zeroerr-ecoder20-magnetic-encodersprice, ring/readhead dimensions, stock
Record confidence: REPORTED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.