The MLA1505 Lead Wires are unshielded and used with the MLA1540 (unshielded Bio Amp cable) and is suitable for use with the ML135
Dual Bio Amp, ML408
Dual Bio Amp/Stimulator and ML865
PowerLab 4/25T. These lead wires can also be used with the ML138
Octal Bio Amp, GT205
8 Channel and GT201
16 Channel Bio Amps.