Quad 3 1/8" square
Left; OP 100 psi
Top; AMP 60-0-60
Right; OT 100-260f
Bottom; FP  0-15 psi
Use with
387-100KV OP sender sold separately
387-15KV FP sender sold separately
399 series OT sender sold separtely
237-60 ammeter shunt sold separately
Light kit 186-12A2L sold separately