When there are two channels of data, you can switch channels by pushing in the operation dial for 1.5 seconds.
By making upper and lower limit settings on the RTR-57C you can check the recorded data as it is collected for irregularities and the results will be displayed. If an RTR-51,52,53 or RVR-52 unit has already been set with its own upper and lower limits, those values will take precedence over the values set in the RTR-57C.
The data capacity for the RTR-57U is 260,000 readings. That is a large enough capacity to collect data from 16 units of RTR-51,RTR-52,RTR-53 or RVR-52 at full capacity (16,000 readings). It can also collect and process up to 250 data recording sessions.
Besides controlling the collection of data, the RTR-57C can manage various recording settings such as: Recording Mode, Recording Interval, Programmed Recording Settings and Immediate Record. This enables the user to easily control various recording settings for a variety of models on-site without the need for a computer.
The main unit's lightweight (125g) pocket-sized design increases mobility and decreseas complications when collecting data. (Possible to connect a cellular phone strap for easy handling.)Moreover, the ergonomic design was created in the pursuit of an easy-to-use human friendly product.