QAWRUMS GH150/1 High-Temperature AE Sensor | 150 kHz, 73 dB, −20 °C to 350 °C, BNC, 3M Cable

The QAWRUMS GH150/1 is rated for continuous operation in environments ranging from -20°C to +350°C. Its stainless Invar steel housing and ceramic sensing face are specifically engineered to maintain structural integrity and stable piezoelectric performance at these extreme temperatures, making it suitable for permanent installation on hot surfaces like boiler shells or process pipelines.

No, the GH150/1 does not have a built-in preamplifier. It is a passive piezoelectric sensor that outputs a raw high-impedance signal. It features an integrated 3-meter cable terminated with a standard BNC connector, which is designed for direct connection to an external preamplifier or compatible data acquisition system with a BNC input.

The sensor includes a magnetic hold-down mount (H20) for quick attachment to ferromagnetic surfaces. For non-magnetic surfaces, adhesive or mechanical clamping can be used. With an IP68 protection rating, the sensor is fully sealed against dust and prolonged water immersion, making it robust enough for harsh outdoor and industrial environments, including those with high humidity, dust, or occasional washdowns.

The sensor has a resonant frequency of 150 kHz and a usable frequency response from 60 kHz to 400 kHz. This wideband range allows it to detect various acoustic emission events, from low-frequency stress waves to high-frequency crack growth. Its primary application is structural health monitoring and early fault detection in high-temperature industrial assets such as pressure vessels, power plant equipment, and pipelines.