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. Readings on a four-digit LCD are provided in less than 10 seconds. Formaldehyde concentrations can be displayed in either ppm or mg/m3. ENMET Corp., Ann Arbor, MI.