Model 1800 Series Enhanced Accuracy Rotary Torque Sensor, 100 lb-in to 100,000 lb-in, 0.05 % Non-linearity and Hysteresis, Enhanced Accuracy, High Overload Protection with High Signal Output (sensitivity), Extended Speed Range, up to 27,000 RPM. A line of enhanced accuracy rotary transformer torque sensors often ideal for test installations running long-term durability testing. Non-contact nature of the signal transfer virtually eliminates the need for maintenance. High overload protection with high signal output helps prevent potential damage to the sensor. Carrier frequency excitation provides increased signal/noise immunity, Speed sensor and foot mount optional accessories.