Don't like the T-In, as putting two senders on the end of piping can result in that pipe breaking if they aren't otherwise supported.
Saw this happen once on a Race car that was modified in an attempt to avoid engine issues from oil pressure loss. (Rabbits easily loose pressure when cornering)
Stock idiot sensor & gauge sensor on "T" fittings, wired for light, gauge, and automatic shutdown with pressure loss (override switch for starting).
When the fitting broke, gauge read zero but no light & no automatic shut down because the circuit to ground for the "idiot light" sensor was lost. Driver continued as the car spewed oil, distrusting the single gauge indication. Lunched that engine when the oil ran out.