Security alarm system
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Electrochemical CO sensor SRC-220
🔧 Technical Specifications: Model: SRC-220 Sensor Type: Electrochemical CO sensor Operating Voltage: 220V AC Alarm Sound: ≥85 dB (at 1
AT-100 Digital Phone Number Storage Device
AT-100 Digital Phone Number Storage Device The AT-100 is a precision digital control module designed for storing up to 8 phone numbers