Big Digit Multi-Channel Wireless Thermo-Hygrometer with Self-Calibration & Auto-Night Light Model: C2064A User Manual Thank you for purchasing this delicate Big Digit Multi-Channel Wireless Thermo-Hygrometer with Self-Calibration & Auto-Night Light. Utmost care has gone into the design and manufacture of the clock. This manual is used for US version. Please read the instructions carefully according to the version you purchased and keep the manual well for future reference. OVERVIEW MAIN UNIT 1 2 3 4 6 7 8 9 5
[ LIGHT ] key 1.
- In normal mode, press once for 5-second backlight.
- When using the [ LIGHT ] key to activate the backlight, operating other function keys will re-time the 5-second backlight.
[ CHANNEL / + ] key 2.
- In temperature and humidity calibration mode, press to increase the value. 1,2,3,4,5,6,7 and 8.
- In normal mode, press to switch between INDOOR, Channel
- In normal mode, press and hold for 2 seconds to enter auto-
cycle mode that Channel 1~8 and INDOORs temperature and humidity readings will alternately be displayed at 4 second intervals. The icon will display during auto-cycle mode.
- During auto-cycle mode, press once to return to normal mode. 3.
- In temperature and humidity calibration mode, press once to
[ MODE ] key switch between setting options.
- In temperature and humidity calibration mode, press and hold for 2 seconds to clear modified data in order to display sensors data.
[ MEM / - ] key 4.
- In temperature and humidity calibration mode, press to decrease the value.
- In normal mode, press once to check maximum and minimum temperature and humidity records. Press again to return to normal mode.
- When the maximum and minimum temperature and humidity records are displayed, press and hold for 2 seconds to erase the current records.
[ TUNE ] key 5.
- In normal mode, press and hold for 2 seconds to enter temperature and humidity calibration mode.
- In temperature and humidity calibration mode, press and hold for 2 seconds to return to normal mode. 6. Auto night-light slide switch
- Slide to [ ON ] position to activate night-light function. When it is ON, the backlight will automatically turn on in dim and dark environment detected by the light sensor. The brightness of night-
light is weaker than normal backlight.
[ C / F ] key
- Slide to [ OFF ] position to turn off the night-light function 7.
- Press to switch between C/F. 8.
- In normal mode, press once to manually enter current channels
[ SENSOR ] key receiving mode. The unit will receive active sensors signals for 5 minutes and erase the current channels records
[ RESET ] key 9.
- Press once to perform overall function and display option resets.
- In case of malfunction, the unit may be required to reset. WIRELESS HYGRO-THERMO SENSOR 1 4 5 2 3
[ CHANNEL ] slide switch 1. Transmission status LED
- Flashes when the sensor is transmitting. 2. Wall mounting holder 3.
- Assign the sensor to Channel 1,2,3,4,5,6,7 or 8. 4.
- Press to restart the sensor. 5. Battery compartment
- Accommodates 2 x AA size batteries.
[ RESET ] key GETTING STARTED WIRELESS SENSOR 1. Remove the battery door of the sensor. 2. Insert 2 x AA size batteries into the battery compartment. Make sure you insert them the right way according to the polarity information marked on the battery compartment. 3. Close the battery door. Note:
- Once the channel is assigned to one sensor, you can only change it by removing the batteries or resetting the unit.
- Avoid placing the sensor in direct sunlight, rain or snow. MAIN UNIT 1. Remove the battery door of the main unit. 2. Install 4 new AA size batteries according to the polarity information marked on the battery compartment and then press
[ RESET ] key by using a metal wire to reset the unit. 3. Close the battery door. 4. Once the batteries are installed, all the segments of the LCD will be shown. Note:
To avoid the wireless sensor and main unit pairing failure, please power up the sensor/s first, and then press [ RESET ] key on the main unit (no need on sensors). INDOOR TEMPERATURE AND HUMIDITY FUNCTION 1. Press [ C / F ] key to switch between C / F. Decimal point is effective for both settings. 2. When the temperature is below -40F or above 158F, Lo or Hi will be displayed respectively. The humidity display will show
--. Temperature below -40C Temperature above 70C 3. When the humidity is below 1% or above 99%, Lo or Hi will be indicated respectively. Humidity below 1%
Humidity above 99%
COMFORT INDICATION The comfort indication is a pictorial indication based on indoor air temperature and humidity in an attempt to determine comfort level. Too cold Comfortable Too hot Note:
- Comfort indication can vary under the same temperature,
- There is no comfort indication when temperature is below 0C depending on the humidity.
(32F) or over 60C (140F). TEMPERATURE & HUMIDITY TREND The temperature & humidity trend indicator shows the trends of changes in the forthcoming few minutes. Arrows indicate a rising, steady or falling trend. Arrow indicator Trend Steady Falling Rising TEMPERATURE AND HUMIDITY CALIBRATION 1. In normal mode, press and hold [ TUNE ] key for 2 seconds to enter temperature and humidity calibration mode in which the current outdoor channel or IN icon will flash. Press [ CHANNEL
/ + ] or [ MEM / - ] key to choose for INDOOR or different CHANNEL. Choose Channel 2. Press [ MODE ] key again to switch between temperature and humidity. Press [ CHANNEL / + ] or [ MEM / - ] key to adjust the value. 3. When finished, press [ TUNE ] key for 2 seconds or leave the unit for 60 seconds to return to normal mode. 4. Pressing [ MODE ] key for 2 seconds during temperature and humidity calibration mode will reset the value to the actual or uncalibrated measurement. 5. Reset the temperature and humidity values for each channel individually. There is no batch reset. 6. Calibration mode sequence: channel temperature humidity 7. In temperature calibration mode, press [ CHANNEL / + ] key or
[ MEM / - ] key to modify 0.1 C or F of the value. Long press to quick-adjust the value. Temperature calibration mode 8. In humidity calibration mode, press [ CHANNEL / + ] or
[ MEM / - ] key to modify 1% of the value. Long press to quick-
adjust the value. Humidity calibration mode 9. If the current reading of the selected channel displays the flashing
--, Hi or Lo, it will be impossible to adjust. Pressing
[ CHANNEL / + ] or [ MEM / - ] key will not change the value. 10. If re-enter temperature and humidity calibration mode, the adjusted value will reset to the original value. 11. The comfort indication is based on calibrated temperature and humidity values to calculate. MAX/MIN TEMPERATURE AND HUMIDITY RECORD The unit preserves the MAX/MIN temperature and humidity records since the last manual reset. 1. In normal mode, press [ MEM / - ] key once to show the current maximum temperature and humidity values; press again to show the minimum values; press the third time to return to normal mode. 2. When the MAX/MIN records are shown, the display will return to normal mode after leaving the unit for 5 seconds. MAX record MIN record Erase MAX/MIN records 3. Perform a manual reset or press and hold [ MEM / - ] key for 2 seconds when the unit is displaying MAX/MIN records or in normal mode to erase the records. Note:
You need to press [ SENSOR ] key to manually receive the sensors signal after youve placed the new batteries to the wireless sensor, or the main unit fail to receive the wireless sensors signal. THE LOW TEMPERATURE ICON When the outdoor temperature is 37.4F or below, the low temperature icon will display. Outdoor 37.4F or below (icon flashes) WIRELESS SENSOR SIGNAL RECEIVING AND DISPLAY 1. In normal mode, press [ SENSOR ] key once to start receiving and reset the current displaying channel. The signal icon will flash along. For example, when CH1 is displayed, pressing [ SENSOR ] key will start receiving for CH 1 only. 2. The signal icon will flash until the reception succeeded. If no signal is received within 5 mins the icon will disappear. Receiving wireless signal after manual reset or the [ SENSOR ]
key is pressed When waiting for signals, -- will display in the readings field Fair wireless sensor signal 3. In normal mode, press [ CHANNEL / + ] key to switch the display between INDOOR and CHANNEL 1~8. 4. In normal mode, press and hold [ CHANNEL / + ] key for 2 seconds to toggle auto-cycle mode, which alternately displays the channels at 4 second intervals. The display. icon will show on the 5. During auto-cycle mode, press [ CHANNEL / + ] key once to stop auto-cycle and display the current channel. 6. To check the validity of the signals from each wireless sensor, press [ CHANNEL / + ] key repeatedly in normal mode to display each channel. Using auto-cycle mode will only display the communicated channels. For example, when CHANNEL 1 and 5 have received the signals from the corresponding sensors, you can press and hold
[ CHANNEL / + ] key for 2 seconds to display the readings of INDOOR, CHANNEL 1 and 5. INDOOR CHANNEL 1 CHANNEL 5 7. If the signal for Channel 1~8 has discontinued and does not recover within 1 hour, the signal icon will disappear. The temperature and humidity will display Er for the corresponding channel. 8. If the signal does not recover within 48 hours, the Er display will become permanent. You need to replace the batteries of the Er channels sensors and then press [ SENSOR ] key to pair up with the sensors per each Er channel again. Signal discontinued THE LOW BATTERY ICON If the main unit or sensor is low in battery, the low battery icon will display. The icon will only appear when the corresponding channel is displayed. For example, the sensor of CHANNEL 1 is low in battery. When CHANNEL 1 is displayed, the icon will show. IMPORTANT NOTE
- Attention! Please dispose of used unit or batteries in an ecologically safe manner.
- Always place the unit away from interfering sources such as TV set, computer, etc.
- Avoid placing the unit on or next to metal plates.
- Technical specifications and user manual contents for this product are subject to change without notice. SPECIFICATION MAIN UNIT Indoor operating temperature range Humidity display range Resolution of temperature Resolution of humidity Wireless SENSOR Outdoor operating temperature range (based on Lithium battery) Outdoor operating humidity range Resolution of temperature Resolution of humidity Wireless sensor signal No. of remote sensor RF transmission range 23F ~ 122F (-5C ~ 50C) 1% ~ 99 %
0.1C/F 1%
-40F ~140F ( -40C ~ 60C) 1% ~ 99 %
0.1C/F 1%
433MHz Up to 8 units Maximum 30 meters POWER Main unit Wireless sensor DIMENSION Main unit Wireless sensor 1.5V AA X 4 (alkaline battery recommended) 1.5V AA X 2 (alkaline battery recommended) 130(W) x 112 (H) x 27.5(D)mm 61(W) x 113.6 (H) x 39.5(D)mm Warning: Changes or modifications to this unit not expresslyapproved by the partyresponsible for compliance could void theusers authority to operate the equipment.NOTE: This equipment has been tested and found to complywith the limits for a ClassB digital device, pursuant to Part 15of the FCC Rules. These limits are designed to providereasonable protection against harmful interference in aresidential installation.This equipment generates, uses and can radiate radio frequencyenergy and, if notinstalled and used in accordance with theinstructions, may cause harmful interferenceto radiocommunications.However, there is no guarantee that interference will not occurin a particularinstallation. If this equipment does cause harmfulinterference to radio or televisionreception, which can bedetermined by turning the equipment off and on, the user isencouraged to try to correct the interference by one or moreof the following measures:- Reorient or relocate the receiving antenna.- Increase the separation between the equipment and receiver- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected- Consult the dealer or experienced radio/TV technician for help This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:(1) This device may not cause interference, and(2) This device must accept any interference,including interference that may cause undesiredoperation of the device.This radio transmitter (identify the device by certificationnumber, or model number if Category II) has been approvedby Industry Canada to operate with the antenna types listedbelow with the maximum permissible gain indicated.Antenna types not included in this list, having a gain greaterthan the maximum gain indicated for that type, are strictlyprohibited for use with this device.Caution: To maintain the compliance with the RF exposureguideline, place the unit at least 20 cm from nearby persons.Le prsent appareil est conforme aux CNR d Part 15 of the FCCapplicables aux appareils radio exempts de licence.Le fonctionnement est autoris aux deux conditions suivantes :1) lappareil ne doit pas produire de brouillage;2) lappareil doit accepter tout brouillage radiolectrique subi,mme si le brouillage est susceptible den compromettre lefonctionnement.Le prsent metteur (identifier lappareil par son numrodhomologation ou par son numro de modle, sil sagit dunappareil de catgorie II) a t approuv par Industrie Canadapour fonctionner avec les types dantennes numresci-dessous et ayant un gain admissible maximal. Il eststrictement interdit dutiliser les types dantennes non inclusesdans cette liste, et dont le gain est suprieur au gain maximalindiqu, avec cet appareil.Mise en garde : Pour assurer la conformit aux lignesdirectrices concernant lexposition aux RF, placer lappareil au moins 20 cm des personnes.