Also Fits: NX210G, NX410, NX411, TK2180, TK3180, TK5210, TK5210G, TK5310, TK5310G, TK5410. Japanese cells. IP64 rated. Certified by SGS to TIA-4950 / CSA C22.2 No. 157 / UL 913 5th Edition standard for intrinsically safe use (Class I, II, III / Division 1 / Groups C-G / -20° C to 40° C, T3) and non-incendive use (Class I, Division 2, Groups A-D / -20° C to 40° C, T3). Special order item.