在印刷过程中，由于印刷机零件松动或者老化等原因，经常会出现需要双张检测的要求，由于光电传感器容易受环境的影响，超声波传感器靠介子传播能量，能够在纸张中传播。纸屑、灰尘等微小物质不会产生影响，所以超声波技术在印刷机双张检测电路中有一定的应用价值。以下是德国劳易测的超声波传感器，专业用于德国海德堡的印刷机。同时还适用于机器：罗兰、高宝、小森、国产印刷机等等。
测量范围从20克到1200克卡纸，操作很简单：只需要在一张纸的情况下，按一下设定键就OK。这是操作界面的一张纸的指示灯就会亮起。这是城的印刷的纸张，薄的如平时打印用的A4纸也是可以的。
一旦出现两张纸的情况，操作界面的两张纸的指示灯就会亮起，同时给出一个开关信号。
VDB 12/2.1
VDB 12/2.2
VDB 12/4.4
VDB 12/4.5
DB 112 UP
VDB 112/4
BK7 KB-095-5000-5A
KB-448-5000-8A
DB 14 K
DB 18 UP-25, 2500
DB 18 UP-40, 2500
VDB 14/2
VDB 14/4.1
BK7 KB-140-2000-20
BK7 KB-140-5000-20
BK7 KB-140-10000-20
KB-ODS96-1500
KB-ODS96-6000
VSU 12/4.1
VSU 12/4.2
DB 18 UP-25, 2500
VSU 15/4
SET DB 112 SE+E+VSU 15M
KK 02/2
KK 05/2 S
KK 05/4 S
KRTM 20M/N-12-1320-S12
KRTM 20M/P-12-1320-S12
KRTM 20M/N-20-1320-S12
KRTM 20M/P-20-1320-S12
KRTM 20M/N-50-1320-S12
KRTM 20M/P-50-1320-S12
KRTM 20M/P-12-1420-S12
KRTM 20M/P-20-1420-S12
KRTM 20M/P-50-1420-S12
KRTM 20M/P-12-1720-S12
KRTM 20M/P-20-1720-S12
KRTM 20M/P-50-1720-S12
KRTM 20M/V-20-1526-S12
KRTM 20M/V-20-1626-S12
KRTM 20M/V-20-1427-S12
KRTM 20M/V-20-1727-S12
KRTM 20M/V-20-0004-S12
KRTM 20M/V-20-0001-S12
KRTG 20M/N-12-1320-S12
KRTG 20M/P-12-1320-S12
KRTG 20M/N-20-1320-S12
KRTG 20M/P-20-1320-S12
KRTG 20M/N-50-1320-S12
KRTG 20M/P-50-1320-S12
KRTG 20M/N-12-1420-S12
KRTG 20M/P-12-1420-S12
KRTG 20M/N-20-1420-S12
KRTG 20M/P-20-1420-S12
KRTG 20M/N-20-1820-S12
KRTG 20M/P-20-1820-S12
KRTG 20M/N-50-1420-S12
KRTG 20M/P-50-1420-S12
KRTG 8/24-10-S12
LKRTG 8/24-GF-S12
KRTG 20M/V-20-1526-S12
KRTG 20M/V-20-1626-S12
KRTG 20M/V-20-1427-S12
KRTG 20M/V-20-1428-S12
OB 12-KRT 20
OB 20-KRT 20
OB 50-KRT 20
WZ-OB-KRT 20
BK7 KB-095- 5000-5
BK7 KB-095- 5000-5 A
KD 095-5
KD 095-5A
UMS 96
CRT 448M/P-40-002-S12
CRT 448M/P-40-004-S12
KB-448-2000-8A
KB-448-5000-8A
CRTM 20M/V-20-0004-S12
CRTM 20M/V-50-0001-S12
OB 12-KRT 20
OB 20-KRT 20
OB 50-KRT 20
WZ-OB-KRT 20
BK7 KB-095- 5000-5
BK7 KB-095- 5000-5 A
LRT 8/24.00-50-S12
LRT 8/24.04-50-S12
LRT 40/4-10-04, 5000
LRT 40/4-10-06, 5000
LRT 40/4-10-14
LRT 40/4-10-16
LRT 440/24-150-004-S12
LRT 440/24-50-104-S12
BK7 KB-450- 2000-4
BK7 KB-450- 2000-4A
BK7 KB-450- 5000-4
BK7 KB-450- 5000-4A
BK7 KB-450-10000-4
BK7 KB-450-10000-4A
BK7 KB-095-10000-5 A
BK7 KB-095- 5000-5
BK7 KB-095- 5000-5 A
BK7 KB-095- 5000-5 P
KD 095-5
KD 095-5A
BT 46.1
ROD4
ROD4-06
ROD4-08
BT-ROD4
KB-ROD4-5000
KB-ROD4-10000
KB-ROD4PC-3000
KB-ROD4PC-10000
KD-ROD4-X1
KD-ROD4-X2
ROD4-SW
LG 160K-480/4, 2000
LG 160K-480 SE,2000
LG 160K-480/4 E,2000
LG 160K-660/4,2000
LG 160K-660 Se, 2000
LG 160K-660/4 E, 2000
LG 160K-1260/4, 2000
LG 160K-1260 SE,2000
LG 160K-1260/4 E,2000
LG 160K-1860/4 , 2000
LG 160K-1860 SE,2000
LG 160K-1860/4 E,2000
PRG 108/44.1-7/60, 6000
PRG 108/44.1-7/60, 300-S12
TLS 85/4
TLS 85/4 SE
LS 85/4 E
TRK 85/4
TNT 31/R
TRE 3
IPRK 95/4.8 L.2
PRK 46/4.8-S12
PRK 96K/P-1361-29
PRK 97/4.8 L
ARH 10
ARH 46
ARH 96
BT 763
BT 78.1
BT 85
BT 85.1
BT 96
Buchse
Stecker
UMS 96
US 1
US 2
US 2.1
US 2.2
US 2.3
SLS 46/44.8-S12
SLSS 46.8-S12
SLSE 46/44-S12
SLS 46/44.8, 2000
SLSS 46.8, 2000
SLSE 46/44, 2000
SLS 78M/P-1730-T2-4
SLSS 78M-1720-T2-45
SLSE 78M/P-1730-T2-41
SLSR 8/66.8-S12
SLSSR 8.8-S12
SLSER 8/66-S12
LS 92/4.8-L
LS 92/2.8 SE-L
LS 92/4 E-L
LS 92/4.8-S
LS 92/2.8 SE-S
LS 92/4 E-S
LS 92/4.8-S.1
LS 92/2.8 SE-S.1
LS 92/4 E-S.1
SLSR 95/44.8 L
SLSR 95/2.8 Se-L
SLSR 95/44 E-L
SLS 318K/P
SLSS 318K
SLSE 318K/P
SLS 318K/P-S12
SLSS 318K-S12
SLSE 318K/P-S12
SLS 318M/P
SLSS 318M
SLSE 318M/P
SLS 318M/P-S12
SLSS 318M-S12
SLSE 318M/P-S12
SLS 96K/P-1207-T2-2
SLSS 96K-1210-T2-24
SLSE 96K/P-1207-T2-21
SLS 96K/P-1207-T2-4
SLSS 96K-1210-T2-45
SLSE 96K/P-1207-T2-41
SLS 96M/P-1070-T2-2
SLSS 96M-1080-T2-24
SLSE 96M/P-1070-T2-21
SLS 96M/P-1070-T2-4
SLSS 96M-1080-T2-45
SLSE 96M/P-1070-T2-41
SLS 96M/P-1071-T2-2
SLSS 96M-1090-T2-24
SLSE 96M/P-1071-T2-21
SLS 96M/P-1071-T2-4
SLSS 96M-1090-T2-45
SLSE 96M/P-1071-T2-41
SLS 96M/P-1200-T2-2
SLSS 96M-1210-T2-24
SLSE 96M/P-1200-T2-21
SLS 96M/P-1200-T2-4
SLSS 96M-1210-T2-45
SLSE 96M/P-1200-T2-41
SLS 96K/P-1070-T2-2
SLSS 96K-1080-T2-24
SLSE 96K/P-1070-T2-21
SLS 96K/P-1070-T2-4
SLSS 96K-1080-T2-45
SLSE 96K/P-1070-T2-41
SLS 96K/P-1200-T2-2
SLSS 96K-1210-T2-24
SLSE 96K/P-1200-T2-21
SLS 96K/P-1200-T2-4
SLSS 96K-1210-T2-45
SLSE 96K/P-1200-T2-41
KB-Y-SRK 96-600-4
NT 21-115V
NT 21-220V
NT 23/2
NT 24
NT 30
IVS 28/44.8
IVS 9/4.8
VS 10/4
VS 10/44
VS 100
VS 100 Z
VS 24/4
VS 25/4 R
EB 01
EB 02
VS 27/24
VS 29/44.8
VS 3/71
VS 725-220V
VS 725/4
VS 9/1
VS 9/4.1
BT 24
TG 15
TG 29
TG 6
TG 60
