New and unused. Contains 4 analog inputs (0-5 Vdc, 24-bit ADC). Up to a 10-year battery life. Self-contained, rugged design, & installs in minutes. Secure AES encryption. Technical details: IP66, -40 °C to 70 °C (-40 ˚F to 158 ˚F); 900/915 MHz range: Up to 1.4 Miles / 2.3 km with Clear Line of Sight; 2.4 GHz range: Up to 1.9 Miles / 3.1 km with Clear Line of Sight; 868 MHz range: Up to 1.5 Miles / 2.4 km with Clear Line of Sight. INSTALLED ON ONE OF THE TRANSMITTERS: 2 Core Sensors 2000 PSI Tranducers & 1 300 PSI Tranducer.