Keterangan Intorinsic Safety Explosion-proof Construction Differential Pressure Transmitter Brand : Nagano Keiki Model : KJ92 Conforming to the IEC specification of intrinsic safety explosion-proof construction, they can be used in " ZONE 0 " places where explosive gas always exists. FEATURES Compact size and light-weight with the same apperarece and operability as GC52 of non-explosion