分辨率货号(带耳后盖,平型后盖)测量范围精度测力备注0.001mm543-250543-250B12.7mm0.003mm1.5N以下0.001mm543-257543-257B12.7mm0.003mm2.0N以下防尘0.001mm543-254543-254B12.7mm0.003mm0.4-0.7N低测力0.001mm543-450B25.4mm0.003mm1.8N以下0.001mm543-460B50.8mm0.006mm2.3N以下0.01mm543-290543-290B12.7mm0.005mm1.5N以下0.01mm543-270543-270B12.7mm0.02mm0.9N以下0.01mm543-277543-277B12.7mm0.002mm2.0N以下防尘0.01mm543-274543-274B12.7mm0.002mm0.2-0.5N低测力0.01mm543-457B25.4mm0.005mm1.8N以下0.01mm543-454B25.4mm0.03mm1.8N以下