Check the listing for details. (2) Trimble Slope Sensors 0365-4010 for BLADEPRO Grade Control System. Condition: Used. Listed at 332.45 USD. (2) Trimble Slope Sensors 0365-4010 BLADEPRO Grade Control System Spectra These Trimble slope sensors are in very good pre-owned condition. They were removed from a working system. No cables or other accessories included. Ready to install. You will receive 2 sensor units either Trimble branded or Spectra Precision branded. The BladePro System uses two Slope Sensors. The blade slope sensor measures the actual slope across the blade. It is mounted at the back of the circle hydraulic circle. The mainfall slope sensor measures the slope of the machine in the direction of travel. It is mounted on the machines frame. Please refer to the pictures for the condition of the item. Everything in the pictures is included. Anything not in the pictures is not included. If you have any questions just shoot me a message and I'll get back to you within 24 hours (usually sooner!)