Electronic flow meter for the measurement of air flows from 0 to100 liters per minute with precision of 1.5%. The flow sensor is equipped with pressure and temperature sensor that are used to adapt the value read from it, expressed in slm (standard litres per minute at 20 ° C and 1013 mbar), in litres per minute measured at environmental conditions. These informations are available to the user in addition to the flow rate. Shutdown is automatic and will occur in two situations:
- After 3 minutes of inactivity when the flow is less than 1l/m.
- Battery level is low (A message will be displayed before).
The instrument is equipped with a NiMh battery of 3.6V 1600mAh allowing a minimum of 8h of continuous use.The USB Mini connector present in the bottom of the instrument is used to charge battery by using the provided power supply or by using a standard wall adaptor of 5V with the same connector. The charger takes at least 13 hours to complete charge batteries. The led indicate that power supply is present and the battery is in charge, when finished charge the led will switch off (The led takes more than 24 hours to switch off but batteries are sufficient charged even after 13h).