The Bosch Motorsport PST-3 combined pressure and temperature sensor covers the 0.2–3 bar absolute pressure range — the mid-range unit in the PST family. It spans from sub-atmospheric conditions up to 3 bar absolute (approximately 2 bar gauge boost), covering turbocharged and supercharged intake manifold applications, low-range oil pressure circuits, and intercooler pressure measurement.
Like all PST-series sensors, a piezo-resistive element with integrated amplification and temperature compensation outputs both pressure and temperature as ratiometric 5 V analog signals. The combined construction reduces harness connections and sensor mounting points compared to using separate pressure and temperature sensors in the same circuit.
For boost pressures above 2 bar gauge (3 bar absolute), select the PST-4 (0.4–4 bar). For naturally aspirated MAP applications, the PST-1 (0.1–1.15 bar) is appropriate.
Technical Specifications
| Property | Value |
|---|---|
| SKU / Part number | 0261230280 (0 261 230 280-U5G) |
| Pressure type | Absolute |
| Pressure range | 0.2 – 3 bar |
| Temperature range | −40 to +130 °C |
| Supply voltage | 5 V |
| Output | Ratiometric analog: 0.5 V = min, 4.5 V = max |
| Medium | Air, oil, gasoline, water |
| Thread / Sealing | M6 fitting, O-ring seal |
| Connector | Bosch Compact (mating: D261.205.360-01) |
| Pinout | Pin 1 = GND, Pin 2 = Temperature out, Pin 3 = 5V supply, Pin 4 = Pressure out |
| Weight | 24 g |
Applications
| Application | Notes |
|---|---|
| MAP / turbo boost (up to ~2 bar gauge) | Most common turbocharged motorsport MAP application |
| Intercooler pressure | Pre/post-intercooler pressure drop measurement |
| Oil pressure (low range) | Dry sump scavenge, return line |
| Fuel pressure reference | Low-pressure PFI fuel system |
| Inlet manifold pressure | Turbocharged port-injected engines |
PST Family Comparison
| Model | Pressure Range | Temp Range | Primary Application | Product Page |
|---|---|---|---|---|
| PST-1 | 0.1–1.15 bar | −40 to 150 °C | Airbox, MAP (NA) | View |
| PST-3 | 0.2–3 bar | −40 to 140 °C | MAP, boost, oil | — |
| PST-4 | 0.4–4 bar | −40 to 130 °C | High-boost, oil | View |
| PST-F-2 | 0–280 bar | −40 to 140 °C | GDI fuel rail | View |
Related Products
- Bosch Motorsport PST-4 — 0.4–4 bar for higher boost
- Bosch Motorsport PST-1 — 0.1–1.15 bar for NA MAP
- MS 6.4 EVO ECU — compatible 5 V analog input
- Bosch Motorsport C70 Data Logger — standalone logger with analog inputs
Reviews
There are no reviews yet.