Description: KIDDE 900-0133 Smoke/CO Combination Alarm - Hardwire Only. Ionization talking alarm. Also as KN-COSM-ICA. DISCONTINUED
suggested replacement is 20SAR-CA. new unit is 120V HW w/ battery back up. if using existing housing of the 900-0133, must also purchase part # 21032239 KIDDE PIGTAIL ADAPTOR
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