This electric fence siren is easy to carry and can be clipped onto fence wire or tape for simple operation. The flashing light indicates low fence voltage. Made from high-quality ABS and copper materials, it is durable and designed for long-term use. The electric fence alarm features precise craftsmanship, is waterproof, and offers stable performance for reliable operation. It is primarily used to detect whether the electric fence voltage is normal and is widely suitable for farms, outdoor areas, and gardens. The electric fence voltage warning light works in conjunction with the fence host and is compatible with various types of electric fences, including steel wire and poly ribbon. Color: Black. Material: Plastic. Battery: 3V, 1 x CR2032 button battery (battery not included). Package includes: 1 x Fence alert (battery not included). The package includes only the items listed above; other products are not included. Note: Lighting and different display screens may cause slight variations in the color of the item as seen in the picture compared to the actual product. Measurement error allowance is +/- 1-3 cm.