The Dwyer PMT2 series is a particle transmitter designed for broken bag detection (fiter leak detection). The special electrostatic induction technology detects particles that flow past the sensor and converts this into a 4 to 20 mA signal based on the concentration of these particles. The PMT2 offers 6 sensitivity ranges that allow the user to choose the range that best fits the application. The handy test function makes the installation very simple. A time average can be set to mute the signal if desired.