Replacement Remote Outdoor Sensor for Atomic Wall Clocks with Full Date Display Series

COMPATIBLE WITH Clock Model 66

NOT COMPATIBLE WITH Clock Model 27 or 27-FD

The outdoor temperature range spans from -20°C to 50°C (-4°F to 122°F), while the thermometer probe can gauge from -50°C to 70°C (-58°F to 158°F). With a checking interval of approximately 60 seconds, the outdoor remote sensor transmits data at a frequency of 433MHz, reaching a range of up to 100 meters in open areas. Powered by 4 x AA batteries for the main unit and 2 x AA batteries for the outdoor remote sensor, this device ensures accurate and reliable temperature readings.