This is an original BOSCH 0 261 230 340 combined oil pressure and temperature sensor. In one unit and with 1 mounting point, this sensor allows measurement of oil/fuel pressure up to 145 psi/10bar and temperature from -40F to 285F (-40C/140C).
This is a nifty little screen that mounts inside your MX5 of any generation prior to 2005 and shows you coolant temperature, oil pressure and oil temperature. 3rd generation 2005-2015 MX5s are also supported, but they have a different layout and thus, the kit is different. You can see the kit for 3rd gen MX5s HERE! (click me)