VW convergence meter
1345, 1346
Digital tape extensometer
2350D
VW NATM shotcrete stress cells
1270, 1280
VW rod extensometers/MPBX
1390, 1391
VW rock bolt stressmeter
1350
Mechanical extensometers
2390,2391A, 2391B
Rock bolt pull tester set
7200, 7201
Geodetic target
7500, 7510
Temperature gages
1010,5550T, R
Tunnel convergence monitoring system
ACE-TCS