CHICAGO RADIO FLAMEPROOF HANDSET STATION MODEL CREX 1030 IS CERTIFIED FOR USE IN FLAMEPROOF APPLICATION OF GAS GROUPS I, IIA, IIB VIDE CMRS CERTIFICATE CMRIT/TCP/H325 DATED 16TH MARCH 2001 & MEETS IP65 DEGREE OF PROTECTION. (IS 2148-1981 & IS 13947 (PARTH)-1993)