or
Optional DC Powered Thermal Plate^ Optional Dc Powered Thermal Plate, For Use With Catalog no. 'S Gsm2, Gss2, Gsm1, Gss1 And Power Supplies Gvt1 (Variable Temperature Control), Gpp1 (30 Degrees C), Gpp2 (34 Degrees C), And Gpp3 (38 Degrees C)