针对同类载物架可利用漫反射式光电传感器简单经济地检测货格占用情况。根据应用，此时适用 PowerProx 系列传感器。此外，距离传感器 Dx35 亦可用于精确测定目标距离。
以下产品系列可以使用
Dx35系列
DT35-B15251
DS35-B15221
DT35-B15851
DS35-B15821
DT35-B15551
DT35-B15551S04
DS35-B15521
DL35-B15852
DL35-B15552
DR35-B15822
DR35-B15522
Powerpeow系列
WTT12L-B2561
WTT12L-B1561
WTT12L-B3561
WTT12L-B3564S18
WTT12L-B2562
WTT12L-B1562
WTT12L-B1564
WTT12L-B3562
WTT12L-B2566
WTT12L-B2568
WTT12L-B1566
WTT12L-B1568
WTT12L-B3566
WTT12L-B3568
WTT12LC-B2563
WTT12LC-B2563S11
WTT12LC-B2563S12
WTT12LC-B2563S15
WTT12LC-B2563S21
WTT12LC-B1563
WTT12L-B2563
WTT12L-B2567
WTT12L-B2567S13
WTT12L-B1563
WTT12L-B1567
WTT12L-B3563
WTT12LC-B3563
WTT12L-B3567
WTT12L-B2593
WTT12L-A2563
WTT12L-B2531
WTT12L-B1531
WTT12L-B3531
WTT12L-B2532
WTT12L-B1532
WTT12L-B3532
WTT12L-B2536
WTT12L-B2538
WTT12L-B1536
WTT12L-B1538
WTT12L-B3536
WTT12L-B3538
WTT12LC-B2533
WTT12LC-B2533S16
WTT12L-B2533
WTT12L-B2537
WTT12L-B1533
WTT12L-B1537
WTT12L-B3533
WTT12L-B3537
WTT12L-B2573
WTT12L-A2533
WTT12LC-B2533So2
WTT12L-B2541
WTT12L-B1541
WTT12L-B3541
WTT12L-B2542
WTT12L-B1542
WTT12L-B3542
WTT12L-B2546
WTT12L-B2548
WTT12L-B1546
WTT12L-B1548
WTT12L-B3546
WTT12L-B3548
WTT12LC-B2543
WTT12LC-B2543BO1
WTT12LC-B2543S23
WTT12L-B2543
WTT12L-B2547
WTT12L-B1543
WTT12L-B1547
WTT12L-B3543
WTT12L-B3547
WTT12L-B2583
WTT12L-A2543
WTT12L-A2543S09
WTT12L-A3543
WTT19OL-N2231
WTT190L-N1131
WTT190L-N3531
WTT190L-P2231
WTT190L-P1131
WTT190L-P3531
WTT190L-N2236
WTT190L-N1536
WTT19OL-N3536
WWTT190L-P2236
WTT190L-P1536
WTT190L-P3536
WTT19OL-K2233
WTT190LC-B2233A00
WTT190L-K1534
WTT19OL-K3534
WTT19OL-A2232
WTT19OL-A1532
WTT190L-A3532
WTT12L-B2502S06
WTT12LC-B2553S25
WTT12L-B2503S05
WTT12L-B2556
WTT12LC-B2553
WTT12L-B2553
WTT12L-A2553
WTT12L-B2516
WTT12LC-B2513
WTT12L-B2513
WTT12L-A2513
WTT12L-B2522
WTT12L-B2526
WTTI2LC-B2523
WTT12L-B2523
WTT12L-A2523
WTT4SLC-3B2262A00
WTT4SLC-3B0062B03
WTT4SLC-3B3462A00
WWTT4SLC-3B0062B04
WTT4SLC-3B2262B01
WTT4SLC-3B1162A00
WTT4SLC-3B3262A00
WWTT4SLC-3B0062B02
WTT4SLC-3B2232A00
WTT4SLC-3B3432A00
WTT4SLC-3B1132A00
WTT4SLC-3B3232A00
WTT2SL-2N3492So2
WTT2SL-2N1192
WTT2SL-2P3492S01
WTT2SLC-2P3092B03
WTT2SL-2P1192
WTT2SLC-2P3292A00
WTT2SL-2P3292
WTT2SLC-2P3292B02
WTT2SL-2F3092so7
WTT2SL-2F3092S08
WTT280L-2N2531
WTT280L-2N1531
WTT280L-2P2531
WTT280L-2P1531
WTT280L-2N2536
WTT280L-2N1536
WTT280L-2P2536
WTT280L-2P1536
WLT280L-2N2536
WLT28OL-2N1536
WLT280L-2P2536
WLT280L-2P1536
