Zeta ZT-ST5-5 Standalone Photoelectric Smoke Detectors are NF approved and can be calibrated to either UL, BSI or VdS requirements. They feature VdS and UL-approved photoelectric sensing components with precise smoke detection and long life operation (5-year life with a 3V lithium battery) or (10 years with a 3V long-life lithium battery). Proven quality with 10 million pieces installed over the world. Russian standard model available too.
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