Enregistreur de Pression LoLog 450

The analogue channel can be used for internal pressure and external pressure.
and status data. The dual option combines one analogue and one digital
channel, or two analogue channels.
LoLog 450 incorporates a high level of features including Pulse Interval
Timing to establish accurate recording of minimum flow and it can store
up to 64,000 readings which may be increased when purchased with
extended memory to 1,000,000 readings (depending on the variability of
the data.)

• Long term monitoring: 5 year battery life in typical use.
• Superior system connectivity: Second channel
  enables connection to other devices.