Oregon Scientific RAR188A - User Manual

SCIENTIFIC
Wireless Indoor/Outdoor
'hermometer with Dual Alarm Clock
Model: RAR188A
User Manual
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Thank you for selecting the Oregon Scientific ™ Wireless Indoor /
Outdoor Thermometer with Dual Alarm Clock (RAR188A). This device
bundles precise time-keeping, alarm, and temperature monitoring fea¬
tures into a single tool you can use from the convenience of your home.
In this box, you will find:
• Main unit
• Remote sensor (THN122N)
4. Clock Area: Time display with seconds or days of the week
5. Calendar / Alarm Area: Date display and dual alarm display
6. Temperature Trend Indicator: shows if temperature is rising,
steady, or falling
7. Outdoor Battery Indicator. Shows when remote sensor battery
is low on power
8. Indoor Battery Indicator: Shows when main unit battery Is low
on power
9. Alarm 11ndicator: Displays when alarm 1 is set and goes off
10. Alarm 2 Indicator: Displays when alarm 2 is set and goes off
1. L ED Status indicator
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. LCD Display
2. CHANNEL: Press to switch remote sensor '
3. MEM: Press to view current or saved max / min temperature
4. ((.}): Press to view dual alarm settings
5. MODE: Press to change display I settings
1. Wall mount hole
2. RESET
3. Channel number (1 - 3)
4. Battery compartment
(Battery compartment cover not shown)
Batteries are not supplied with this product. You will need to purchase
2 x UM-3 (AA) 1,5V alkaline batteries for the main unit, and 2 x UM-4
(AAA) 1.5V alkaline batteries for the remote sensor.
Insert batteries before first use, matching the polarity as shown in the
battery compartment. For best results, install batteries in the remote
sensor before the main unit. Press RESET after each battery change.
1. Wall mount hole
2. A : Press to increase settings
3. ^ : Press to decrease sellings
4. Battery compartment
5. Table stand
6. AL ON I OFF: Press to toggle alarm settings
7. °C I °F switch
Do not USB rechargeable batteries.
■ cS? shows on LCD display when batteries are low.
1. Press and hold MODE for 2 seconds to enter setting mode.
2. Press A or V to change settings.
3. Press MODE to confirm.
Product can stand on detachable base or be mounted on a wall with a nail.
The main unit is shipped with a THN122N Thermo Sensor that col¬
lect temperature data and can be connected to 3 THN122N remote
sensors to collect additional temperature data. Additional sensors
sold separately.
To set up your remote sensor:
1. Open the remote sensor battery compartment with a small Phillips
screwdriver.
2. Insert the batteries, matching the polarity (+ and -) as shown in
the battery compartment.
Ml Standard Alkaline batteries contain signifcant amounts of
water. Because of this they will freeze in low temperatures of approxi¬
mately 10*F (-12”C). Disposable Lithium batteries have a much lower
threshold for temperature with an estimated freezing range of
below -40°F (-40X). The Liquid Crystal Display in outdoor thermom¬
eters will remain operational to -20°F (-28°C) with adequate power.
Wireless ranges can be impacted by a variety of factors such as ex¬
tremely cold temperatures. Extreme cold may temporarily reduce the
effective range between the sensor and the base station. If the unit's
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 tow tem¬
peratures).
3. S et the channel switch to any channel. The switch is located in
the battery compartment.
SWITCH
DESCRIPTION
Channel
Channel 1 - 3. If you are using more
than one sensor, select a different
channel for each sensor.
4. Place the sensor near the main unit. Press RESET on the sensor.
Then, press CHANNEL and MEM at the same time on the main
unit to initiate signal sending between the sensor and the main
unit. The reception icon on the main unit will blink for approximately
3 minutes while it is searching for the sensor. (Refer to the SENSOR
DATA TRANSMISSION section for more information.)
5. Close the remote sensor battery compartment.
6. Secure the sensor in the desired location using the
wall mount or table stand.
For be9t results:
• Insert the batteries and select the channel and temperature
unit before you mount the sensor.
■ Place Ihe sensor out of direct sunlight and moisture.
• Do not place the sensor more than 30 meters (98 feet) 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.
You may need to experiment with various locations to get the best
results.
Data is sent from the sensor every 40 seconds. The reception Icon
shown In the Temperature Area shows the status.
ICON
DESCRIPTION
Main unit is searching for sensors.
1
At least 1 channel has been found.

Summary

Product Overview

LCD Display and Controls

Overview of the main unit's LCD display features and available controls for operation.

Main Unit Diagram

Diagram illustrating the main unit, highlighting its components and controls for operation.

Remote Sensor Diagram

Diagram of the remote sensor, identifying its parts and features for outdoor temperature monitoring.

Getting Started and Setup

Inserting Batteries

Instructions for inserting batteries into the main unit and remote sensor for initial power.

Remote Sensor Setup

Steps to prepare and set up the remote sensor, including battery insertion and channel selection.

Connecting Main Unit and Sensor

Process to initiate signal transmission between the remote sensor and the main unit for data reception.

Clock Functions

Setting the Clock

Manual steps to set the current time, date, and language on the main unit.

Clock Display Modes

How to switch between different clock display modes, such as showing seconds or weekdays.

Alarm Functions

Setting Alarms

Procedures to set and activate dual alarm functions, including time and on/off status.

Alarm Indicator Status

Explanation of the indicators that show when alarms are set or active.

Temperature Monitoring

Temperature Display Information

Details on the temperature information displayed, including current, min/max readings, and trend.

Clearing Temperature Memory

Instructions on how to clear stored minimum and maximum temperature records.

Temperature Trend Indicator

Explanation of the trend indicator showing if temperature is rising, steady, or falling.

Safety and Care

General Safety Guidelines

Essential safety guidelines and warnings for proper use and handling of the device.

Cleaning Instructions

Guidance on how to clean the product using a damp cloth and mild detergent.

Troubleshooting

Common Issues and Remedies

A guide to diagnose and resolve common operational problems with the thermometer.

Specifications

Main Unit Specifications

Technical specifications for the main indoor unit, including dimensions, weight, and power requirements.

Remote Sensor Specifications

Technical specifications for the remote outdoor sensor, including dimensions, weight, and battery type.

Operating Ranges and Connectivity

Details on operating temperature ranges, RF frequency, transmission range, and channel support.

FCC Statement

FCC Compliance Information

Information regarding FCC compliance, operating conditions, and interference guidelines for the device.

Overview

1. Function Description
2. Important Technical Specifications
3. Main Unit
4. Remote Sensor (THN122N)
5. Usage Features
6. Main Unit
7. Remote Sensor
8. Setup and Operation
9. Maintenance Features
10. Important Notes

The Oregon Scientific™ Wireless Indoor / Outdoor Thermometer with Dual Alarm Clock (RAR188A) is a versatile device designed to provide precise time-keeping, dual alarm functionality, and temperature monitoring. It comes with a main unit and a remote sensor (THN122N), with the option to connect up to three THN122N remote sensors for additional data collection (additional sensors sold separately).

Function Description:

The main unit features an LCD display that shows the current time, day of the week, date, and dual alarm settings. It also displays indoor and outdoor temperatures, along with a temperature trend indicator to show if the temperature is rising, steady, or falling. Battery indicators for both the main unit and remote sensor alert users when batteries are low. The device includes two independent alarms, each with a 2-minute crescendo alarm. The remote sensor collects temperature data and transmits it wirelessly to the main unit.

Important Technical Specifications:

Main Unit:

• Dimensions (L x W x H): 5.9 x 3.2 x 1.9 inches (150 x 82 x 47 mm)
• Weight: 6.8 ounces (188 grams) with battery
• Indoor Temperature Range: 23°F to 122°F (-5°C to 50°C)
• Power: 2 x UM-3 (AA) 1.5V alkaline batteries
• Clock Display: HH:MM:SS (12hr AM/PM format)
• Calendar: MM/DD; weekday in 5 languages (English, French, German, Italian, Spanish)
• Alarm: 2-minute crescendo

Remote Sensor (THN122N):

• Dimensions (L x W x H): 3.6 x 2.4 x .79 inches (92 x 60 x 20 mm)
• Weight: 2.22 ounces (63 grams) without battery
• Outdoor Temperature Range: -22°F to 140°F (-30°C to 60°C)
• Temperature Resolution: 0.2°F (0.1°C)
• Memory: Min/Max temperature records
• Power: 2 x UM-4 (AAA) 1.5V alkaline batteries
• RF Frequency: 433 MHz
• Range: 98 feet (30 meters) with no obstructions
• Transmission: Data sent every 40 seconds
• Channels: 3 (selectable)

Usage Features:

Main Unit:

• LCD Display: Shows time, date, alarms, and temperature data.
• CHANNEL Button: Press to switch between connected remote sensors.
• MEM Button: Press to view current, maximum (MAX), or minimum (MIN) temperature records. Press and hold for 2 seconds to clear records.
• ((.)) Button: Press to view dual alarm settings. Press and hold for 2 seconds to enter alarm setting mode.
• MODE Button: Press and hold for 2 seconds to enter setting mode for clock, calendar, and language. Press to confirm settings.
• A / Buttons: Used to increase or decrease settings during setup.
• AL ON/OFF Button: Toggles alarm settings on or off.
• °C/°F Switch: Located on the back of the product, allows switching between Celsius and Fahrenheit.
• Wall Mount Hole / Table Stand: The main unit can be placed on a table stand or mounted on a wall.
• Language Settings: Supports English, German, Italian, French, and Spanish for weekday display.

Remote Sensor:

• Battery Compartment: Requires 2 x UM-4 (AAA) 1.5V alkaline batteries.
• Channel Switch: Allows selection of channels 1-3 for multiple sensors.
• RESET Button: Press after each battery change or during initial setup to re-initialize the sensor.
• Wall Mount / Table Stand: Can be mounted on a wall or placed on a table.

Setup and Operation:

1. Battery Installation: Insert batteries into both the main unit and remote sensor, matching polarity. For best results, install batteries in the remote sensor first, then the main unit. Press RESET on the sensor after battery changes.
2. Sensor Pairing: Place the sensor near the main unit. Press RESET on the sensor, then press CHANNEL and MEM simultaneously on the main unit to initiate signal sending. The reception icon on the main unit will blink for approximately 3 minutes while searching.
3. Clock Setting: Press and hold MODE for 2 seconds. Use A / buttons to set hour, minute, year, month, day, and weekday language. Press MODE to confirm.
4. Alarm Setting: Press and hold ((.)) for 2 seconds. Use A / buttons to set alarm times. Press ((.)) to confirm. Use AL ON/OFF to activate/deactivate alarms.
5. Sensor Placement: Position the sensor out of direct sunlight and moisture, within 30 meters (98 feet) of the main unit, minimizing obstructions. For optimal performance, ensure a clear view to the sky and avoid metallic or electronic objects. Extreme cold temperatures may temporarily reduce wireless range.

Maintenance Features:

• Cleaning: Clean the product with a slightly damp cloth and alcohol-free mild detergent.
• Battery Management: Remove batteries if storing the product for a long period. Do not mix new and old batteries or different types. Do not use rechargeable batteries.
• Troubleshooting: The manual provides a troubleshooting guide for common issues such as strange date/month, inability to adjust clock, out-of-range temperature readings, and inability to locate the remote sensor.
• FCC Compliance: The device complies with Part 15 of the FCC Rules, ensuring it does not cause harmful interference and accepts any received interference. Users are advised to avoid unauthorized changes or modifications to the unit.

Important Notes:

• Standard alkaline batteries may freeze in low temperatures (approximately 10°F / -12°C). Disposable lithium batteries have a much lower freezing threshold (below -40°F / -40°C).
• The LCD display remains operational to -20°F (-28°C) with adequate power.
• Signals from household devices (doorbells, garage doors, home security systems) may cause temporary reception failure, which is normal and will resume once interference ends.

Oregon Scientific RAR188A Specifications

General

Brand	Oregon Scientific
Model	RAR188A
Category	Thermometer
Language	English