Answer:
The SOLT SB6-2XWH-S emergency pull-cord transmitter is classified under HSN code 85176910 for commercial invoicing and procurement.
For institutional procurement, tax compliance, and commercial billing, the SOLT SB6-2XWH-S wireless emergency washroom unit (KT Ref: KTI0401200SLTPC) is catalogued under HSN tariff code 85176910 (transmission apparatus for radio-telephony or other wireless communication networks).