PF2W7 is a digital flow sensor for water or coolant. This is a legacy sensor, refreshed in 2009 as PF3W. The 3-digit LED display can show either instantaneous or accumulated flow. The mounting bracket is integrated into the body, while the M12 lead wire is optional. 2 switch outputs are included, with an LED indicator for each located below the display. PF2W7 is IP65 rated and CE compliant.