1. Material: ABS/PC 2. Weight: about 62 grams 3. Size: about 8.5x8.5x3.7 cm 4. Power supply: a 9V 6F22 battery (you need to bring your own) 5. Volume: greater than 95db 6. Alarm current: 350mA 7. Detection angle: 180 degrees 8. Purpose: used to detect water pipe leakage alarm and water level alarm in reservoir 9. Features: small and portable, easy to operate, simple to use, energy saving and environmental protection, durable, accurate detection, wide applicability