Zuosheng 4-in-1 Alarm Gas Carbon Monoxide Temperature & Humidity Detector Gas Detector

4-in-1 All-in-One Indoor Environment Detector Compact integrated monitoring device for kitchen, bedroom, garage and RV. 24/7 round-the-clock detection guards your home from invisible indoor hazards for safer, healthier living. Plug-and-Play Universal AC Power, Easy Deployment Works with 110V–220V wall outlets, zero complicated installation. Auto 200-second warm-up after plug-in; great for houses, hotels and campers. Backlit LCD Real-Time Readout + 85dB Loud Alarm Clear screen displays real-time temperature, humidity and gas data. 85dB loud siren activates once dangerous concentrations are detected to remind you to take measures immediately. Accurate Alarm Thresholds & Fast Response Safety Certification Alarms trigger at 6% LEL combustible gas and 30/60/120/300 PPM toxic gas levels with rapid response, fully compliant with strict safety testing standards. Energy-Saving Auto-Dimming Backlight Design Wide 110V–220V voltage compatibility. Screen brightness auto-dims after 1 minute idle and shuts off after 5 minutes to cut power consumption.