Sharper Image OQ234 - Manual (Page 16)

The maximum and minimum recorded indoor temperatures and
those of each channel are automatically stored in memory. To
display them:
1. Press CHANNEL to locate the desired channel.
2. Press MEMORY to rotate through the maximum (MAX), mini-
mum (MIN) and current temperatures. Indoor temperature
readings are displayed.
To clear the memory of a particular channel, press CHANNEL to
locate the desired channel. Press CLEAR. The MAX and MIN
memory for that channel will be erased. Note: It will also erase
the memory for the indoor temperatures.
Disconnected Signals
If, for no obvious reason, a particular channel display goes blank,
press CHANNEL and MEMORY to enforce an immediate search.
If that fails, ensure the remote unit for that channel remains in
place, ensure the transmission is within range and the path is
clear of obstacles and interference.
Maximum and Minimum Temperatures