Testo 605-H2 - The humidity measurement stick you can bend. Small, compact and accurate.Measures wet-bulb, dry-bulb and relative humidity
The sensor remains stable in the long term guaranteeing accurate results even after years of use. You get dry bulb, wet bulb or relative humidity with the push of a button! Use for refrigerant charging of fixed orifice systems or performance testing of any standard forced air appliance. The 605-H2 will never run out of distilled water because it is not required, and the measurement is not air velocity dependent, so the readings will always be accurate. The 6" long probe allows for easy insertion into a duct well past the insulation if so equipped for an easy and fast measurement. Besides all that, the 605-h2 allows you to take the measurement in the airstream seeing the condition of the air the evaporator will see, This will allow for precision charging with the Testo 550, 557, or 570 even in low ambient temperatures.