The main unit of the RMR136HGA (RMR136HG) is the temperature and calendar clock station, and the thermohygrometer sensor remote unit.  This product can support up to 3 remote sensors (purchase separately). 433GHz and no cable.

Features

• Large LCD displays indoor temperature, clock with calendar, and temperature and humidity data
• Records maximum/minimum temperatures/humidity
• Clock is ExactSet and automatically synchronizes with the US Atomic Clock
• Three languages
• Day of the week display
• Crescendo alarm
• Display on tabletop of mount on the wall
• Power is two AA (UM-3) 1.5Volt alkaline battery (included)

This product is an Oregon Scientific Discontinued item.