點擊圖片查看大圖
PT877D-4X1，PT877D-4X2，PT877D-4X3，PT877D-4X4，PT877D-4X5，有功電能數顯表
PT877D-4X6，PT877D-4X7，PT877D-4X8，PT877D-9X1，
PT877D-9X2，PT877D-9X3，PT877D-9X4，PT877D-9X5，
PT877D-9X6，PT877D-9X7，PT877D-9X8，PT877D-DX1，
PT877D-DX2，PT877D-DX3，PT877D-DX4，
PT877D-4X1，PT877D-4X2，PT877D-4X3，PT877D-4X4，PT877D-4X5，有功電能數顯表