1. Product Overview
The ORIA WA150KM is a digital wireless thermometer designed to monitor temperatures in refrigerators and freezers. It features a main display unit and two remote sensors, providing real-time temperature readings, min/max records, and customizable temperature alarms.
Image: The main display unit and two wireless remote sensors of the ORIA WA150KM thermometer.
2. Package Contents
- 1 x Wireless Thermometer Main Unit
- 1 x Freezer Remote Sensor
- 1 x Refrigerator Remote Sensor
- 1 x User Manual
3. Component Identification
Image: A close-up of the main display unit, highlighting the freezer temperature, refrigerator temperature, alarm icons, and MIN/MAX temperature values.
Main Display Unit
- LCD Screen: Displays current temperatures for both sensors, MIN/MAX records, and alarm status.
- Buttons: SET, CLE/+, RF/-, and C/F buttons for configuration and mode selection.
- Battery Compartment: Located on the back, requires 3x AAA batteries.
- Stand/Hanging Hole: For versatile placement.
Remote Sensors
- Temperature Sensor: Detects ambient temperature.
- TX Button: For manual pairing.
- Battery Compartment: Located on the back, each requires 2x AAA batteries.
- Detachable Hook: For hanging inside the appliance.
4. Setup and Installation
4.1 Battery Installation
- Open the battery compartment on the back of each remote sensor. Insert 2x AAA batteries into each sensor, ensuring correct polarity.
- Open the battery compartment on the back of the main display unit. Insert 3x AAA batteries, ensuring correct polarity. The display will power on and the signal icons for freezer/refrigerator will blink, indicating a signal search.
Image: The back of the main display unit and a remote sensor, illustrating the battery compartments and the C/F switch.
4.2 Pairing Sensors
The sensors and main unit should pair automatically upon battery installation. If pairing does not occur or is lost:
- On the main display unit, long-press the "RF/-" button to reset the host. The display will show dashes (--) and the signal icon will blink, indicating it is re-searching for a signal.
- Open the battery cover of each transmitter (sensor) and press the "TX" button to manually pair.
- The temperature readings should appear on the main unit once paired. If the signal is not found after 30 seconds, repeat the steps.
4.3 Placement Options
The main display unit can be placed on a table using its integrated stand or hung on a wall. The remote sensors can be placed on a shelf or hung using their detachable hooks inside the refrigerator or freezer.
Image: The main unit shown standing on a surface and a remote sensor hanging inside a refrigerator, demonstrating flexible installation.
4.4 Instructional Video
Watch this video for a visual guide on setting up and operating your ORIA WA150KM thermometer.
Video: A short instructional video demonstrating the battery installation, pairing process, and basic functions of the ORIA WA150KM thermometer.
5. Operation
5.1 Temperature Unit Selection (℃/℉)
Press the "°C/°F" button located on the back of the main display unit to switch between Celsius and Fahrenheit temperature units.
5.2 MAX/MIN Temperature Records
The display shows the highest (MAX) and lowest (MIN) temperatures recorded since the last reset. Short press the "CLE/+" button to switch between 24HR and ALL TIME record modes.
5.3 Clearing History
Long-press the "CLE/+" button to clear the recorded MAX/MIN temperature history.
5.4 Temperature Alarm
The thermometer features adjustable temperature alarms for both refrigerator and freezer. When the temperature exceeds your preset minimum or maximum alarm value, the thermometer will emit an audible alarm after a 2-minute delay. This delay helps prevent accidental alarms from temporary access to food.
Image: The main display unit illustrating the upper/lower limit alarm feature, showing the alarm icon and the 2-minute delay function.
When an alarm occurs, the current temperature digit, MAX/MIN symbol, and alarm icon will flash simultaneously.
- Refrigerator Alarm Range: 0 °C to 15 °C (32 °F to 59 °F)
- Freezer Alarm Range: -40 °C to 0 °C (-40 °F to 32 °F)
6. Troubleshooting
6.1 No Temperature Reading / Signal Loss
If the main unit displays dashes (--) or loses connection with a sensor:
- Ensure batteries in both the main unit and sensors are fresh and correctly installed.
- Long-press the "RF/-" button on the main unit to initiate a signal re-search.
- Press the "TX" button on the back of the corresponding remote sensor to force pairing.
- Ensure the sensors are within the wireless range (up to 80m in open areas) and there are no significant obstructions.
7. Specifications
| Model Number | WA150KM |
| Display Type | Digital LCD with Backlight (3.7 inches) |
| Temperature Range (Sensors) | -40 °C to 37.7 °C (-40 °F to 99.9 °F) |
| Accuracy | ±1 °C (±1.8 °F) |
| Wireless Technology | 433 MHz |
| Wireless Range | Up to 80 meters (262 feet) in open areas |
| Power Source (Main Unit) | 3x AAA Batteries (not included) |
| Power Source (Sensors) | 2x AAA Batteries per sensor (not included) |
| Material | Plastic |
| Dimensions (Main Unit) | Approximately 9.5 cm (Length) |
8. Care and Maintenance
- Clean the thermometer and sensors with a soft, damp cloth. Do not use abrasive cleaners or immerse in water.
- Replace batteries when the low battery indicator appears on the display to ensure accurate readings.
- Store the device in a dry environment when not in use for extended periods.
9. Warranty and Support
ORIA products are designed for reliability and performance. For any questions, technical support, or warranty claims, please contact ORIA customer service through your purchase platform or the official ORIA website. Please retain your proof of purchase for warranty purposes.