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Oregon Scientific RMR683HGA Manual

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Oregon Scientific RMR683HGAOregon Scientific RMR683HGA-SL Wireless Thermometer
This Oregon Scientific wireless thermometer brings you stylish temperature and timing. It monitors the indoor and outdoor temperature from up to 3 remote locations (requires additional sensors), displays indoor humidity, and automatically sets itself to the US Atomic Clock signal.

Brand: Oregon Scientific
Part Numbers: 4470187, LWB2122511413001, RMR683HGASL
UPC: 734811305374
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User reviews and opinions

Comments to date: 4. Page 1 of 1. Average Rating:
fibulae 7:49pm on Sunday, October 31st, 2010 
Performs as expected Works great. I assume the temperature is accurate, although I have never verified it. Out of the box, did not work I spent half hour (not counting opening the package it was packed it) trying to get the time set. No luck.
erminio 2:24pm on Saturday, October 9th, 2010 
good for a under $20 digital stat. Smallish,Lightweight, wall mount or standing, external wired thermsiter with long cable none
vmk 5:49pm on Tuesday, August 3rd, 2010 
klever 6:50am on Saturday, June 19th, 2010 
GREAT BUY I just love this indoor/outdoor thermometer. I live along the Adirondack Parkway in NY and temperature change daily.

Comments posted on are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.




Wireless Indoor / Outdoor Thermometer with Indoor Humidity and Self-Setting Atomic Clock Model: RMR683HGA USER MANUAL


Thank you for selecting this Oregon ScientificTM Wireless Indoor / Outdoor Thermometer with Indoor Humidity and Self-Setting Atomic clock (RMR683HGA). This clock is supplied with a remote sensor (THN132N) and can support up to 3 sensors in total (additional sensors sold separately). NOTE Please keep this manual handy as you use your new product. It contains practical step-by-step instructions, as well as technical specifications and warnings you should know about.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
Heat index icon Hi / lo temperature alarm Max / Min temperature icon Sensor reception icon Comfort Zone Battery low icon Hi / lo humidity alarm Max / Min humidity icon Ice warning is active Temperature trend Temperature Heat Index Warning Humidity Humidity Trend
4. Close the battery compartment. 5. Secure the sensor in the desired location using the wall mount or table stand.

Clock / Alarm area:

1. 2. 3. 4. 5. 6. 7. 8. 9.


Clock signal reception AM / PM mode selected Alarm mode Alarm set AM / PM mode selected Alarm time US time zone Clock Moon Phase
For best results: Place the sensor out of direct sunlight and moisture. Do not place the sensor more than 30 m (100 ft) from the main (indoor) unit. Position the sensor so that it faces the main (indoor) unit, minimizing obstructions such as doors, walls, and furniture. Place the sensor in a location with a clear view to the sky, away from metallic or electronic objects. Position the sensor close to the main unit during cold winter months as below-freezing temperatures may affect battery performance and signal transmission. The transmission range may vary depending on many factors. You may need to experiment with various locations to get the best results. Standard Alkaline batteries contain significant amounts of water. Because of this they will freeze in low temperatures of approximately -12C (10F). Disposable Lithium batteries have a much lower threshold for temperature with an estimated freezing range of below -30C (-22F). Wireless ranges can be impacted by a variety of factors such as extremely cold temperatures. Extreme cold may temporarily reduce the effective range between the sensor and the base station. If the units performance fails due to low temperature, the unit will resume proper functioning as the temperature rises to within the normal temperature range (i.e. no permanent damage will occur to the unit due to low temperatures).


1. SNOOZE 2. Temperature and Humidity Area 3. Clock / Alarm Area The sensor reception icon in the temperature and humidity area shows the status.


DESCRIPTION Main unit is searching for the sensor(s) A channel has been found and sensor signal is being received The sensor cannot be found. Search for the sensor or check batteries

1. LED Indicator

1. Wall mount 2. Battery compartment 3. Battery door 4. Table stand 5. CHANNEL switch
and - -. - (Temperature and Humidity Area)

To search for a sensor: Simultaneously, press and hold MEM and CHANNEL for 2 seconds. NOTE If the sensor is still not found, check the batteries, obstructions, and remote unit location.


Insert batteries before first use, matching the polarity (+ and -). RESET after each battery change.


This product is designed to synchronize its date and time automatically once it is within range of the WWVB-60 signal from the atomic clock in Boulder, Colorado. The clock collects the radio signals whenever it is within 1500 km (932 miles) of a signal.
1. TEMP / HUMIDITY HI / LO : Change settings or enable / disable hi or lo temperature / humidity alarm 2. / : Increase / decrease setting; activate / deactivate clock reception signal 3. CHANNEL: Switch remote sensor display 4. HEAT INDEX 5. MODE: Change settings / display 6. ALARM: View alarm status; set alarm 7. Battery compartment 8. MEM: View current, maximum and minimum temperature / humidity 9. C / F: Select temperature unit 10. ZONE: Toggle US time zone 11. RESET: Reset unit to default settings
NOTE Initial reception takes 2-10 minutes for first set up or when RESET is pressed. Once complete, the reception icon will stop blinking. If the signal is weak, it can take up to 24 hours to get a valid signal. indicates main unit batteries are low. NOTE Do not use rechargeable batteries. We recommend that you use alkaline batteries with this product for longer usage and lithium batteries in temperatures below freezing.


Clock signal reception indicator: STRONG SIGNAL WEAK SIGNAL NO SIGNAL


The sensor collects temperature readings approx. every 40 seconds and sends them to the main unit. The main unit can collect data from up to 3 sensors. To set up the sensor: 1. Slide open the battery door. 2. Insert the batteries, matching the polarity (+ / -). 3. Select a channel. Make sure you use a different channel for each sensor. To enable and force a signal search: Press and hold for 2 seconds. To disable the signal reception: Press and hold for 2 seconds. flashes when it is disabled.


Temperature and Humidity area:


To manually set the clock make sure the clock signal reception is disabled. To manually set the clock: 1. Press and hold MODE for 2 seconds. 2. Press and to change the settings. 3. Press MODE to confirm.


2006.2.23, 9:22 AM
4. The setting sequence is: 12 / 24 hour format, hour, minute, year, date / month format, month, date, and display language. NOTE Press ZONE to set the US time zone options: Pacific (P), Mountain (M), Central (C) and Eastern (E). NOTE The language options are English (E), German (D), French (F), Italian (I), and Spanish (S). To switch the clock display: Press MODE to toggle between: Clock with day Clock with seconds

WARNING Extreme danger

HEAT INDEX 54.5C (130F) or above 40.5 - 54C (105 - 129F) 32.2 - 40C (90 - 104F) 26.6-31.7C (80- 89F)
Danger Extremecaution Caution
MEANING Strong risk of dehydration / sun stroke Heat exhaustion likely Possibility of heat dehydration Possibility of heat exhaustion
Alarm duration Snooze Clock display Hour format Calendar Power REMOTE UNIT LxWxH Weight Transmission range Temperature Range Power
2 minutes 8 minutes HH:MM:SS HH:MM:Day of Week 12 hour format MM / DD language selectable: E, D, F, I and S 2 x UM-3 (AA) 1.5 V batteries 96 x 50 x 22 mm (3.8 x 2.0 x 0.9 in) 62 g (2.22 oz) without battery 30 m (100 ft) unobstructed -30C to 60C (-22F to 140F) 1 x UM-3 (AA) 1.5 V battery
To set the alarm: 1. Press and hold ALARM for 2 seconds. 2. Press / to set alarm time. 3. Press MODE/SNOOZE to confirm. indicates alarm is ON. To toggle alarms ON / OFF: 1. Press ALARM to display alarm time. 2. Press ALARM again to turn alarm ON / OFF. To silence the alarm: Press SNOOZE to silence it for 8 minutes. OR Press any key except SNOOZE to turn the alarm off and activate it again after 24 hours.
To display the heat index, press HEAT INDEX. To toggle between current / maximum / minimum readings, press HEAT INDEX, then press CHANNEL to select channel 1-3 or indoor, followed by MEM. To toggle between temperature / humidity and heat index display, press and hold HEAT INDEX for 2 seconds. Press HEAT INDEX again to stop this feature.
NOTE If the heat index is below 80F / 26C, if the selected sensor does not support humidity measurement or if the channel is not working, the heat index will display NA.
NOTE It is recommended that you use alkaline batteries with this product for longer performance.


Visit our website ( to learn more about Oregon Scientific products such as digital cameras; MP3 players; childrens electronic learning products and games; projection clocks; health and fitness gear; weather stations; and digital and conference phones. The website also includes contact information for our Customer Care department in case you need to reach us, as well as frequently asked questions and customer downloads. We hope you will find all the information you need on our website, however if youre in the US and would like to contact the Oregon Scientific Customer Care department directly, please visit: OR Call 1-800-853-8883. For international inquiries, please visit:


The comfort zone assesses the climate based on current temperature and humidity measurements. ICON TEMPERATURE Any 20 - 25C (68 - 77F) Any HUMIDITY > 70% 40 - 70% < 40%


To toggle temperature unit: Press C / F. To view outdoor sensors temperature readings: Press CHANNEL. To auto-scan between sensors: Press and hold CHANNEL for 2 seconds. Each sensors data is displayed for 3 seconds. To end auto-scan: Press CHANNEL or MEM. To toggle between current, minimum and maximum records for the selected sensor: Press MEM repeatedly. To clear the records: Press and hold MEM for 2 seconds.


When calendar is set press or phase for the next / previous day. Press and hold to 2099). New Moon Waxing Crescent First quarter Waxing Gibbous Full Moon Waning Gibbous Last quarter Waning Crescent or to view the moon to scan through the years (2001


This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. WARNING Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. NOTE This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of 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 an experienced radio / TV technician for help.

The temperature and humidity trend icons are based on recent readings. RISING STEADY FALLING
Press RESET to return the main unit to the default settings. To reset the sensor, remove and then re-insert the batteries.


If the channel 1 sensor falls between 3C to 2C (37F to 28F), flashes to warn you that the temperature is approaching freezing. NOTE The warning will automatically stop if the temperature goes outside the ice-warning range.
An alarm can be set to sound if sensor set to channel 1 records above or below a temperature / humidity of your choice. To set alarm ON / OFF: 1. Press and hold TEMP / HUMIDITY HI / LO. 2. Use and to select high / low temperature / humidity alarm. Press TEMP / HUMIDITY HI / LO to confirm. 3. Press / to set alarm ON / OFF and press TEMP / HUMIDITY HI / LO to confirm. 4. If alarm has been activated, use and to select the temperature / humidity. 5. Press TEMP / HUMIDITY HI / LO to confirm. To silence the alarm: Press any key. The alarm resets automatically and will resound if the hi / lo temperature selected is recorded again. NOTE The THN132N sensor supplied does not support humidity readings. To enable Hi / Lo Humidity alarm a thermo-hygro sensor must be purchased and set to channel 1. For further information on compatible sensors such as the THGR268 thermo-hygro sensor please check with your local retailer or go to
This product is engineered to give you years of satisfactory service if you handle it carefully. Here are a few precautions: Do not subject the unit to excessive force, shock, dust, temperature or humidity, which may result in malfunction, shorter electronic life span, damaged battery and distorted parts. Do not immerse the unit in water. If you spill liquid over it, dry it immediately with a soft, lint-free cloth. Do not clean the unit with abrasive or corrosive materials. Do not tamper with the units internal components. Doing so will invalidate the warranty on the unit and may cause unnecessary damage. The unit contains no user-serviceable parts. Only use fresh batteries as specified in the users instructions. Do not mix new and old batteries. Due to printing limitations, the displays shown in this manual may differ from the actual display. The contents of this manual may not be reproduced without the permission of the manufacturer. NOTE The technical specifications for this product and the contents of the user manual are subject to change without notice.
The following information is not to be used as contact for support or sales. Please call our customer service number (listed on our website at, or on the warranty card for this product) for all inquiries instead. We Name: Address: Oregon Scientific, Inc. 19861 SW 95th Ave.,Tualatin, Oregon 97062 USA Telephone No.: 1-800-853-8883 declare that the product Product No.: RMR683HGA Product Name: Wireless Indoor / Outdoor Thermometer with Indoor Humidity and Self-Setting Atomic Clock Manufacturer: IDT Technology Limited Address: Block C, 9/F, Kaiser Estate, Phase 1,41 Man Yue St., ung Hom, Kowloon, Hong Kong is in conformity with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference. 2) This device must accept any interference received, including interference that may cause undesired operation. 2006 Oregon Scientific. All rights reserved. 086L004263-038


TYPE MAIN UNIT LxWxH Weight Temperature unit Temperature range Resolution Clock frequency Synchronization Signal frequency Clock Humidity range Humidity resolution MEM DESCRIPTION 97 x 127 x 70 mm (3.94 x 5.20 x2.87 in) 241 g (8.5 oz) without battery C / F -5C to 50C (23F to 122F) 0.1C (0.2F) WWVB-60 (US) Auto or disabled 433 MHz Auto or manual (disabled) 25% - 95% 1% Min / Max relative humidity and temperature


The heat index combines temperature and humidity data to describe the actual temperature felt. The THN132N sensor supplied does not support heat index display. A thermo-hygro sensor must be purchased to enable heat index display for channels 1-3.



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