P/N: 141829411, GTDW610, HDTW610, HITDW610, HTDW610, KP53570, KP61570, KP61S70, KPS3570, RMU303, RMU3033, SON HTDW610, SONSTRDE335, SRRDE335, STRDE335, STRE391, STRED335, STRRSE391, STRSE391, 141846811, RMY905, 141846911, RMY906, 147571011, RMU302, RCU500

REPLACEMENT: RMU302 (NO TEST TONE BUTTON)

Originally supplied with models: GTDW610, HDTW610, HITDW610, HTDW610, HTDW810, KP43T70, KP46C70, KP48S70, KP48S72, KP53570, KP53N74, KP53S70, KP61570, KP61S70, KPS3570, R2900, R6000, RMU303, RMU3033, SRRDE335, STRDE3, STRDE335, STRE391, STRED335, STRRSE391, STRSE391