| 摘要 |
An accurate, easy-to-use, low cost level indication system can be easily installed on the exterior or interior of an RV. The device provides a visible and/or audible level indication that can be viewed from within the cab of the tow vehicle or motor home day or night. The device provides level indication along the 2 main RV axis's (side to side and front to back). The device can be calibrated at any time by the operator. Calibration can be performed on uneven terrain. The device can also store arrival inclination information for later recall during departure preparations.
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