Thermor 259RX User Manual

Main Specification:

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

Before You Begin:

1.0 Set up procedure

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

1.1 Getting Started

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.

2.0 Troubleshooting

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

an object. If no reception is possible, despite the observation of these factors, all units will have to be
reset.

3.0 Calendar and clock setup

1. Press and hold the “SET” button to activate the calendar and clock setup mode.

2. Press the “+” or “–“button to toggle to the correct year.

3. Press the “SET” button to confirm and turn to next setting.

4. Follow steps 2-3 to set the year, month, date, time and 12hr/24hr mode in sequence.

NOTE: Hold “+” or “–“ buttom, it can be quick setting.
No any action more than 20 seconds, it will quit to normal mode.

4.0 Recorded daily highest and lowest temperature

1. Press “MAN/MIN” button to check the daily highest and lowest temperature.

2. To clear the daily memory, press the “clear” button when the highest and lowest temperature is
displayed. It will clear the record of the shown field.

5.0 Recorded highest and lowest temperature with date

1. The recorded highest and lowest outdoor temperature within 5 years will always be displayed on
the screen. When the outdoor temperature becomes higher or lower than the current record, the
display immediately updates to the new record. This data will be retained in the unit memory even if
the battery is removed or unit is reset.

2. To clear this memory, press “MAX/MIN” and “CLEAR” together in the monitor.

IMPORTANT: The recorded highest and lowest temperature is stored by date, therefore the calendar
MUST be set correctly before use of the unit.

6.0 ºC/ºF Switchable

The default measurement for temperature is ºF, press the ºC/ºF button to toggle between °C and
ºF.

7.0 Signal Detection

The signal indicator on the monitor will display the following in the outdoor temperature window:

No Signal Detected

Signal Detected

Successful Reception