1/8NPT Thread Pressure Transducer | Stainless Steel | For Oil, Fuel & Water

This pressure transducer gives you correct pressure readings for liquids and gases. This works in car or factory systems. It's made from stainless steel with a common 1/8" NPT thread. It's a direct-fit sensor for checking oil, fuel, air, or water pressure. It sends the data to a gauge or ECU. Features and Benefits - Stainless steel build - The body is made from 304 stainless steel. It resists rust from fuel, oil, and moisture. - Linear 0.5-4.5V output - It gives a simple, steady voltage signal that changes with pressure. This makes it easy to use with digital gauges. - Different pressure ranges - You can get it in ranges like 150 PSI and 500 PSI. This lets you pick the right one for your specific needs. - Includes wiring pigtail - Each sensor comes with a matching weatherproof connector and wires. This makes installation easier and ensures a firm connection. Applications - Car Monitoring - Put it in as an oil pressure sensor or a fuel pressure transducer with a 1/8 NPT port. This gives accurate engine data. - Air Systems - Use it as an air pressure transducer to check line pressure in air suspension, shop tools, or factory machines. - Fluid System Control - It works as a water pressure transducer to check output from a pump or look at pressure in a hydraulic setup. Safety & Preparation Before handling any pressure transducer, including this 1/8NPT Stainless Steel model, always ensure the power supply is disconnected from the system. Pressure transducers work by converting pressure into an electrical signal. Improper handling or installation can lead to damage to the transducer or the equipment it is connected to. Wear appropriate personal protective equipment, such as safety glasses, especially when working with pressurised systems. Ensure the installation area is clean and free from debris, particularly around the 1/8 NPT thread, to prevent leaks or damage during fitting. Check Excitation Voltage The excitation voltage is the power supply required for the pressure transducer to operate. Before connecting the transducer to a system, verify that the power supply you intend to use matches the transducer's voltage requirements. While this specific product's voltage is not listed, common excitation voltages for pressure transducers include 5V, 10V, or 24V DC. Applying an incorrect voltage can damage the internal components of the pressure transducer, which typically include a strain gauge. Use a multimeter to confirm the output voltage of your power supply before making any connections. Test Output Signal (Zero Pressure / No Load) To understand how a pressure transducer works, it's helpful to test its output at zero pressure. With no pressure applied to the 1/8NPT Stainless Steel transducer, you should observe a baseline electrical signal. This 'zero offset' is crucial for accurate readings. If the transducer has a current output, such as 4-20 mA, expect to see approximately 4 mA. For voltage output transducers (0-5V, 0-10V, or mV), the zero-pressure output will be close to 0V or a specified non-zero voltage, depending on the sensor type. This test helps confirm the transducer is functioning before installation into a system for monitoring oil, fuel, air, or water. For Current Output Transducers (4–20 mA): If this pressure transducer produces a current output in the range of 4-20 mA, connect it in series with a multimeter set to measure current. With no pressure applied to the 1/8NPT thread, the multimeter should read approximately 4 mA. As pressure is applied, the current should increase proportionally, reaching 20 mA at the maximum rated pressure. This 4-20 mA signal is robust for long-distance transmission to a logic controller or other monitoring equipment. This type of signal helps diagnose if the pressure gauge transducer is correctly converting the pressure into an electrical output. For Voltage Output Transducers (0–5V, 0–10V, or mV): When working with a voltage output pressure transducer, such as those providing 0-5V, 0-10V, or millivolt signals, connect a multimeter in parallel across the output terminals. With no pressure applied to the Stainless Steel transducer, the multimeter should display a voltage close to zero or a specified offset voltage. As pressure increases on the 1/8NPT connection, the voltage output will rise proportionally up to the maximum specified voltage. This voltage change represents the pressure measurement and can be fed into a logic controller for precise monitoring of oil, fuel, air, or water systems.