Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Angst+Pfister Sensors and Power
The Angst+Pfister Sensors and Power 28S is an incremental, singleturn, optical shaft encoder featuring a 28 mm case diameter and a shaft diameter of 4 to 5 mm. It delivers a resolution ranging from 512 to 12800 CPR with ABZ incremental signals, operating across supply voltage options of 5 V, 4.5 to 13.2 V, and 4.5 to 26.4 V with Open-Collector, Differential, and Line Driver outputs. Constructed with an IP50 enclosure rating, this unit functions within a temperature range of -10 to +85 °C. Submit the exact part number, quantity, and application requirements to request a quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Angst+Pfister Sensors and Power references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Angst+Pfister Sensors and Power 28S. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.