Wireless Driveway Alarm System by Rodann Electronics

Wireless driveway alarm with long range capability is extremely durable and dependable. Easy installation - simply install a 9 volt battery (included) and plug in the receiver (transformer/power adapter included). 1000' transmitting range. Choice of 4 unique tones of "Ding" or Ding Dong"allows you to have multiple transmitters (TX2000A) and know exactly which entry point someone has penetrated. Ability to add as many receivers (RX2000A) as necessary - for bedroom, basement, kitchen, living area, etc. Receiver has adjustable volume loud enough for the heard of hearing or noisy commercial environments. Sensor is Not affected by WIND, SHADOWS, HEAT OR TEMPERATURE FLUCTUATIONS works on motion and body heat combined (infrared). Receiver has a built in counter Built in 12 Volt DC power to run extra sound to another room or another part of the building (IE can ring in more than one place at same time)