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1·This new sensor can be applied to no higher precisely to detect solid state bin level, dust bin level and liquid level.

该传感器可应用在精度要求不高的固态料位、粉状料位和液位的检测。

2·This particular newer model has a better intake vacuum system & motor, plus better brushes and the dust bin works more efficiently.

这款特别的新型号有一个更好的进气真空系统和电机，加上更好的刷子，使得打扫工作更有效率。