The ENMET Formaldemeter htV is a direct-reading portable formaldehyde monitor that incorporates humidity compensation for peak performance at low concentrations and when taking readings in various environments. Temperature and RH can also be displayed. The compact htV offers readings on a four-digit LCD in less than ten seconds. Formaldehyde concentrations can be displayed in either ppm or mg/m3.ENMET Corp., Ann Arbor, MI.