Radiance instruments Ltd.
Da Jing Village, Si Jiao Lou,Luo Yang Town,Hui Zhou City,China Postcode: 516171
Phone: 0752-6831106/6831108
（
126
）
Fax: 0752- 6832319 E-mail:[email protected]
PRODUCT USER MANUAL
Product number
：
RT820RF Product name: Wireless fridge thermometer version: V1.1
Feature:
2.4GHZ wireless fridge thermometer
。
IP65 waterproof for transmitter.
HIGH/LOW alarm setting.
Maximum temperature and current temperature reading.
FCC,CE, NSF and ROHS compliant.
Low battery indication.
C /
F exchange
Magnetic attachment
Specification:
Measuring range
-25 ~ 50
C/-13 ~ 122
F
Temperature accuracy
±0.5
℃
/0.9
℉
Display resolution
0.1
Temperature reading update
10 seconds alarm active
，
30 seconds normal
Transmitter battery life
About 6000 hours
Receiver battery life
About 4000 hours(no alarm)
Working temperature
25 ~ 50
C for transmitter, 0 ~ 50
C for receiver
Wireless distance
50 meters (open field, about 10 meters into the fridge)
Receiver size
65(W) x 97(H) x 20(D) mm
Transmitter size
110(L) x 35(D) x 30
(Ф) mm
Receiver display size
37(W) x 37(H) mm
Transmitter battery
3 volt battery, type AAA X 2 or equivalent
Receiver battery
3 volt battery, type AAA X 2 or equivalent
Operation
Put the transmitter into the fridge and put the receiver outside the fridge.
C /
F exchange
Select the temperature unit
C or
F by the switch on the back side.
Receiver
1
）
Press [ ] button to turn on the unit, press the button and hold for 3 seconds to turn off.
2
）
After about 10 seconds, the receiver will receive the signal from the transmitter and display the
temperature. The reading will be update 10 seconds.
Transmitter
1) Press[ ] button to turn on the unit, red LED flash 5 times, press and hold for 3 seconds to turn off the unit,
red LED flash 2 times.
2) In normal working, it will send out the signal each 30 seconds and the LED flash.
Alarm setting
1) Press [
] button to turn on or off the alarm monitor.
2) Press [Set] button and hold 5 seconds to enter the low temperature alarm setting mode, the value flash. Press
[
▲] or [▼] to set the low alarm value. After finish the low alarm setting, press [Set] button once again to enter
