Thermor Ltd. 259RX ユーザーズマニュアル

1. Indoor 

temperature 

2. Outdoor 

temperature 

3.  Recorded daily highest and lowest temperature 

4.  Recorded highest and lowest temperature with date within 5 years 

5.  ℃/℉ switchable(Fault:℉) 

6. Time 

7. Calendar 

8.  Day of week 

9.  Low battery indicator 

 

1. Insert batteries into the monitor first. 

2. Place the monitor as close as possible next to the remote sensor and insert the batteries into the 

remote sensor. 

3. Position the monitor and remote sensor within effective transmission range, which in usual 

circumstances no more than 45 meters. The range is affected by the building materials and where the 

monitor and remote sensor are positioned; try various locations for the best results.   

 

NOTE: The remote sensor should be placed in a shaded area for accurate readings 

 

Once the remote sensor has been powered up, the monitor will attempt to search for the signal for 3 

minutes. 

 

Once the signal is received, the dashes (- -：-) on the monitor will change to the current outdoor 

temperature. If after 3 minutes the screen does not change to show the outdoor temperature, press 

“RE-SYNC” button in the monitor. The monitor will now attempt to search for the signal for another 3 

minutes. 

 

If monitor doesn’t receive the signal more than 2 minutes, your display shows dashes    (- -：-). Press 

“RE-SYNC” button in the monitor. The monitor will now attempt to search for the signal for another 3 

minutes. 

 

If monitor doesn’t receive the signal more than 60 minutes, the monitor will attempt to search for the 

signal for another 3 minutes automatically. 

If monitor doesn’t receive the signal all the time, the monitor will search for the signal for 3 minutes 

every hour until signal received. 

 

The maximum transmission range is 45 meters from the remote sensor to the monitor (in open space). 

However, this depends on the surrounding environment and interference levels. The temperature 

signal travels in a straight line from the remote sensor to the monitor. The signal will not curve around