The nitrous sensors are high accuracy units with 0.5 to 4.5v output which is compatible with the Interceptor gauges. For those who already have an Aeroforce gauge these provide an inexepensive and easier alternative to buying and installing separate gauges for these functions. Sensor has a 1/8" NPT fitting. 2000 psi sensor with 12" pigtail. Reads 0-2000 psig 0.5% accuracy (10 psi) Sensor kits for the Interceptor gauges are not stocked. They are drop shipped to you with the gauge from Aeroforce.