HS-100IS1005402, Hansford Industrial Accelerometer for Chemical Processing _ Pharmaceuticals _ Mining _ Utilities Industries etc, Application for Dryers _ Presses_ Gearboxes _Cooling etc, Hansford AC Compression Accelerometer _ Compression Crystal Construction _ Intrinsically Safe with European approvals, Hansford Vibration Sensor 100mV/g AC acceleration output via M12 Connector