WAGO 750-661/000-004 MSRP: Now: $468.40 Was: Fail-safe 4-channel digital input; 24 VDC; PROFIsafe 750-661/000-004
WAGO 753-668/000-004 MSRP: Now: $1,231.00 Was: Fail-safe 4 channel analog input; 0/4 20 mA; Differential input; PROFIsafe 753-668/000-004
WAGO 753-469/003-000 MSRP: Now: $486.00 Was: 2-channel analog input; Thermocouple K; Diagnostics, adjustable 753-469/003-000