1. Introduction
Thank you for choosing the GEEVON Indoor Outdoor Wireless Digital Thermometer. This device provides accurate indoor and outdoor temperature readings, along with time display, MAX/MIN records, and an ice alert function. Its wireless design allows for flexible placement of both the main unit and the remote sensor. Please read this manual carefully before use to ensure proper operation and to maximize the product's lifespan.
2. Package Contents
- 1 x Main Display Unit
- 1 x Wireless Remote Sensor
- 1 x User Manual
Note: AAA batteries are required for both units and are not included in the package.
Image: Main Display Unit and Wireless Remote Sensor
3. Product Features
- Indoor & Outdoor Temperature Display: Simultaneously monitors temperatures in two locations.
- Wireless Remote Sensor: Transmits data up to 200ft/60m (in open areas).
- MAX/MIN Records: Tracks daily, 48-hour, and all-time highest and lowest temperatures.
- Temperature Trend Arrows: Indicates whether temperatures are rising, falling, or stable.
- Ice Alert: Flashing symbol warns when outdoor temperature is between -1.0°C to 2.9°C (30.2°F to 37.3°F).
- Time Function: Displays time in 12/24-hour format.
- Selectable Units: Temperature display in Celsius (°C) or Fahrenheit (°F).
- Backlight: 8-second soft white backlight for easy reading in low light conditions.
- Placement Options: Tabletop stand or wall-mountable design.
Image: Wireless Range and Feature Overview
4. Specifications
| Feature | Specification |
|---|---|
| Model Number | 86151 |
| Brand Name | GEEVON |
| Theory | Thermometer Hygrometer |
| Display Type | DIGITAL |
| Power Type | AAA Battery (not included) |
| Max Measuring Temperature | 49°C & Under |
| Display Size | 3.14 inches (LCD), 2.0 - 3.9 Inches (overall) |
| Wireless Range | Up to 200ft / 60m (open area) |
| Ice Alert Range | -1.0°C to 2.9°C (30.2°F to 37.3°F) |
| Dimensions (Main Unit) | Approx. 4.17 in (10.6 cm) H x 2.2 in (5.6 cm) W |
| Certification | CE, FCC |
| Use | Household |
Image: Main Unit Dimensions and Ice Alert Details
5. Setup and Installation
5.1 Battery Installation
- Main Display Unit: Open the battery compartment on the back. Insert 2 x AAA batteries, observing the correct polarity (+/-). Close the compartment.
- Wireless Remote Sensor: Open the battery compartment. Insert 2 x AAA batteries, observing the correct polarity (+/-). Close the compartment.
Important: Always replace all batteries at the same time. Do not mix old and new batteries or different types of batteries.
5.2 Initial Pairing
Once batteries are installed in both units, the main display unit will automatically search for the remote sensor. The outdoor temperature reading should appear on the main unit within a few minutes. If it doesn't, try the following:
- Press the 'CHANNEL' button on the main unit to initiate a search.
- Remove and reinsert batteries in both units to reset and re-establish connection.
5.3 Placement Guidelines
Proper placement of both units is crucial for accurate readings and reliable wireless transmission.
Main Display Unit:
- Place the main unit indoors, away from direct sunlight or heat sources (e.g., windows, heating vents) that could affect its indoor temperature reading.
- It can be placed on a tabletop using its integrated stand or mounted on a wall using the keyhole slot.
Wireless Remote Sensor:
- Optimal Placement: Mount the sensor vertically in a shaded area, protected from direct sunlight and rain.
- Avoid: Do not place the sensor horizontally or directly on the ground, as this can lead to inaccurate readings or signal interference.
- Range: Ensure the sensor is within 200ft/60m of the main unit. Walls and other obstructions can reduce the effective range.
Image: Remote Sensor Placement Recommendations
Image: Main Unit Placement Options
6. Operating Instructions
6.1 Display Overview
The large LCD screen displays the following information:
- Time: Current time (12/24H format).
- Outdoor Temperature: Current temperature from the remote sensor, with trend arrow.
- Outdoor MAX/MIN: Records of highest and lowest outdoor temperatures (today/48hr/all-time).
- Indoor Temperature: Current temperature from the main unit, with trend arrow.
- Ice Alert Symbol: Flashes when outdoor temperature is near freezing.
- Low Battery Indicator: Appears when batteries need replacement.
6.2 Setting the Time
Refer to the buttons on the back or side of the main unit. Typically, there is a 'SET' or 'MODE' button to enter time setting mode and 'UP'/'DOWN' or '+'/'–' buttons to adjust values. Follow the sequence to set hours, minutes, and 12/24-hour format.
6.3 Temperature Unit Selection (°F/°C)
Press the '°C/°F' button (usually located on the back of the main unit) to switch between Celsius and Fahrenheit display.
6.4 MAX/MIN Records
The thermometer automatically records the maximum and minimum temperatures. Press the 'MAX/MIN' button to cycle through:
- Current readings
- Today's MAX/MIN
- 48-hour MAX/MIN
- All-time MAX/MIN
To clear the records, press and hold the 'MAX/MIN' button while viewing the desired record type.
6.5 Ice Alert
The ice alert symbol will automatically flash on the display when the outdoor temperature falls within the range of -1.0°C to 2.9°C (30.2°F to 37.3°F), indicating potential icy conditions.
6.6 Backlight Function
Press the 'SNOOZE/LIGHT' button (usually located on the top of the main unit) to activate the soft white backlight. The backlight will stay on for approximately 8-10 seconds, providing clear visibility in dim lighting.
Image: Backlight Activation
7. Maintenance
- Cleaning: Wipe the units with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries in both units when the low battery indicator appears on the display. Ensure correct polarity.
- Storage: If storing the device for an extended period, remove all batteries to prevent leakage.
- Environmental Protection: Do not expose the main unit to direct moisture. Ensure the remote sensor is protected from heavy rain and direct sunlight for longevity and accuracy.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No outdoor temperature reading / '---' displayed | 1. Remote sensor out of range. 2. Batteries in sensor are low or dead. 3. Interference. 4. Sensor not paired. | 1. Move sensor closer to the main unit. 2. Replace batteries in the remote sensor. 3. Relocate units away from electronic devices. 4. Re-pair the sensor (remove/reinsert batteries in both units, then press 'CHANNEL' on main unit). |
| Inaccurate temperature readings | 1. Sensor exposed to direct sunlight/heat. 2. Sensor placed on ground or horizontally. 3. Main unit near heat/cold source. | 1. Relocate sensor to a shaded, protected area. 2. Ensure sensor is mounted vertically. 3. Move main unit away from windows, vents, or appliances. |
| Display is dim or blank | Low or dead batteries in the main unit. | Replace batteries in the main display unit. |
| Backlight not working | Low batteries or button malfunction. | Replace batteries. If issue persists, contact support. |
9. User Tips
- Battery Type: Both the main unit and the remote sensor require AAA batteries. Using good quality alkaline batteries is recommended for longer life.
- Optimal Sensor Placement: For the most accurate outdoor readings, place the remote sensor in a location that is consistently shaded and protected from direct precipitation. A north-facing wall under an eave is often ideal.
- Signal Strength: If you experience intermittent outdoor readings, try repositioning the remote sensor or the main unit slightly. Even a small adjustment can improve signal reception.
- Resetting Records: Remember to clear MAX/MIN records periodically if you want to track new highs and lows for specific periods (e.g., weekly or monthly).
10. Warranty and Support
GEEVON products are designed for reliability and performance. For any questions, technical support, or warranty claims, please contact GEEVON customer service through your purchase platform or the official GEEVON website. Please have your model number (86151) and purchase details ready when contacting support.
