Set of 2 smoke and carbon monoxide detectors with LCD screen, 100% brand new

General Description: 2-in-1 carbon monoxide and smoke detector with electrochemical CO sensor and photoelectric smoke sensor, designed to accurately detect smoldering fires and reduce false alarms. Equipped with an LCD screen and a powerful alarm for safe home use. Product Specifications Material: ABS Color: White Dimensions: 11 x 11 x 4 cm Weight: 100 g / 200 g Power Supply: 3 AA batteries (not included) Operating Temperature: -20 °C to +50 °C Alarm Volume: 80 dB Features 1. Dual detection: electrochemical CO sensor + photoelectric smoke sensor 2. Test button to check alarm operation 3. LCD screen displaying real-time CO concentration, battery level, and operating status 4. Easy wall mounting with bracket, no wiring required 5. Powerful 80 dB alarm when smoke or CO levels exceed the threshold Package Contents 1 × Carbon Monoxide and Smoke Detector OR 2 × Carbon Monoxide and Smoke Detectors