- Professional ammonia gas (NH3) detector with high-precision electrochemical sensor (0-100 ppm, 0.1 ppm resolution, ±5% error) - Fast response time (<120s) for effective leak detection in industrial, agricultural, and domestic environments - Configurable dual alarm: early warning and emergency alert with 80dB sound and flashing light - Rechargeable lithium battery, over 8 hours of continuous use, and automatic shut-off for energy saving - IP54 protection against dust and water, ideal for outdoor use and harsh environments - Real-time monitoring of NH3 concentration, temperature (±2°C), and humidity (0-95% RH) - Large, clear LCD display with easy °C/°F switching - Simple operation with one-touch control and backlight - Includes protective probe cover, USB cable, and user manual - Perfect for farms, chemical plants, refrigeration systems, and homes to prevent poisoning and comply with safety regulations