Oregon Scientific RMR221PN-R PRYSMA Atomic Projection Clock with Outdoor Temperature - Red provides the most accurate time for your home! Wakeup to the alarm clock with projection of the time and outdoor temperature projected on your ceiling or wall that's easy to read when you first get up to start your day. With Oregon Scientific PRYSMA atomic projection clocks you can plan your day's activities by using the convenient barometric pressure weather forecast.
Projection (time & outdoor temperature)
Indoor & outdoor temperatures
Indoor temperature range: 23.0 °F to 122.0 °F
Outdoor temperature range: -4 °F to 140 °F
180° rotating projection image
Time & date
Radio-controlled (atomic) clock
Dual alarm clock
1 year Oregon Scientific warranty
RMR221PN-R Projection Clock
Wireless outdoor temperature sensor
Two AAA batteries
Frequently asked questions:
How big are the projected numbers on the ceiling?
This depends on the distance and angle between the Oregon Scientific projection clock and the wall or ceiling you are projecting the image on. Every foot of distance will grow the digits by one inch. For example, if the distance between the clock and the ceiling is four feet, the digits would be four inches in length.
What is the temperature ranges of the sensor?
Temperature: -22F to 140F
Where should I install the sensor?
Place the sensor out of direct sunlight and moisture. Ideal outdoor locations would be under the overhand or eaves of your home.
Are the temperature readings in Fahrenheit or Celsius?
Both, there is a button in the back of the clock that switches from Fahrenheit or Celsius.
The main unit and the wireless sensor must first be connected and the temperature from the sensor should be displayed on the main unit. If they are not connected please follow the Sensor Reset procedure first.
In the battery compartment press and hold the “Search” button for 2 – 3 seconds. The internal LED will flash three times indicating the atomic clock(RF) signal is de-activated.
Press and release the “Search” button. The internal LED will flash two times indicating that the atomic clock(RF) signal is re-activated.
It can take up to 24hrs to get the atomic clock signal. If the main unit and the sensor are properly connected, the atomic clock(RF) signal indicator on the main unit will display one to three signal bars. Each main unit is different, please reference your user manual for the location of the atomic clock signal indicator on your display.