The MR430 series ZapFREE® Fiber Optic Position Sensor is a small form factor, rotary position sensor with 13-bit, single-turn resolution. The MR430 features an innovative design which enables new applications and OEM product features not formerly possible with electronics-based sensors. The sensor is 100% passive and is unaffected by EMI, RFI, microwaves and magnetic fields. The innovative, alldielectric design also provides 100% electrical isolation and immunity to high voltages & lightning.