GSM SMS Alarm System with DS18B20 Temperature Sensor

Industrial-Grade Durability
Built with high-precision DS18B20 digital temperature sensor for ±0.5°C accuracy, housed in rugged ABS casing for long-term reliability in harsh environments.
Real-Time Remote Monitoring
Sends instant SMS alerts to 5 pre-set numbers when temperature exceeds thresholds, ensuring 24/7 safety for server rooms, greenhouses, and cold chain logistics.
Plug-and-Play GSM Connectivity
Supports global 2G networks (850/900/1800/1900MHz) with easy SIM card slot, no WiFi dependency—ideal for remote farms, warehouses, and unattended facilities.
Wide-Range Power Options
Operates on 12V DC or built-in rechargeable battery (48hr backup), featuring low-power design with auto-sleep mode to extend lifespan.
Multi-Scene Application
Prevents food spoilage in commercial fridges, protects lab equipment from overheating, and monitors HVAC systems in office buildings—all configurable via intuitive keypad.
Bulk Purchase Advantage
Direct factory pricing with MOQ discounts, FCC/CE certified, shipped globally from bonded warehouses for fastest delivery. *(Note: Includes sensor probe with 3m waterproof cable and mounting kit.)*