Q1. How does Guardian Angel Device work?
Guardian Angel is based on digital 2.4GHz RF (radio frequency) technology. Both Base unit and Tag units have been paired to each other in factory. The Guardian Angel uses the RF signal strengthens to identify each other and provide direction reference. The Guardian Angel can provide loss prevention and direction finding service for you. When Base unit and Tag is out of presetting ranges (Near/Middle/Far), both units will generate alert sound to remind you. The Guardian Angel can use LED level (visual) and sound level to guide you to the right direction of the run-away units.

Tracker is based on digital 2.4GHz RF (radio frequency) technology. Both Master and Slave units transmit and receive radio signals. The feature of Tracker is the signal weakens as the Master and Slave units are apart, and the signal strengthens as both units are close. While the signal is weak, Master unit picks up the signal and translates it into audio and visual prompts to lead you to the correct direction or alert that your belongings is going astray.

Q2. How does the search function work?

1. On the Base unit, press the “Search” Button once for Tag unit #1 – one or more of the 5 “Signal Strength” LED lights will illuminate on the Base unit, indicating the relative distance from Base to Tag. The Base unit will also begin to chirp at regular intervals. The Tag unit will also begin to beep, allowing you to follow the audible to pinpoint its location, if it is nearby.

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2. First, You must survey the current site and collect RF signal data for analysis. Hold the Base unit in front of you, at chest level and scan the area slowly in a circular direction, from the right to the left for 360° and again from the left to the right (one 360° turn in 3-4 seconds). Note: If the “Direction Indicator” illuminates green on the Base unit during the survey, it does not yet indicate a Tag unit’s direction yet. It only collects RF signal data at this time for further analysis.

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3. Slowly scan a third time from the right to the left. The “Direction Indicator” on the Base Unit will illuminate (green) when it establishes the direction of the tag’s location. Note: You don’t have to scan a full 360°; you can use a narrower search angle (i.e. 180°), but you should continue to scan with the Base unit from left to right, right to left and then follow the leading green LED direction.

4. Move in the direction in-line with where the front of the Base Unit points when the Green light is lit. As you move closer and closer to the Tag unit, the Base unit chirp intervals will increase in frequency and the “Signal Strength” lights will display additional red lights. If the Base unit chirp intervals slow and the red “Signal Strength” lights become fewer, you may be moving in the wrong direction and losing signal strength – at this point you may need to stop and go through previous survey step again.

5. As you become very close to the Tag unit, the “Signal Strength” lights will all be illuminated – however, if you are right on top of or very close to the Tag unit, the “Direction Indicator” may give inaccurate readings (i.e. signal saturation condition). At this point you should mute the Base unit (Mute button on the side of the Base unit) and follow the Tag unit’s beep in order to pinpoint its location.

6. Once the Tag unit is found, press the “Search/Set” button on the Base unit again to cease the search function.
Silent search option: In quiet areas (i.e. libraries), it is possible to conduct a silent search, where both the Base and Tag units are muted. To do this simply, turn on the “Mute” button on the Base unit before pressing the “Search” button and then use the Direction Indicator and Signal Strength lights.

Q3. In search mode, why does the Base unit show the Tag location to be in several directions?
The Base unit collects and compares RF signal strength from the Tag unit to determine location. However, when the Tag unit is already very close to the Base unit, the saturated signals can appear emitting from several directions. This can also occur when both units are in an enclosed environment, which causes signal reflection off of walls from different directions, false indicator will occur. If this is the case, you can mute the Base unit, and simply follow the audio beep issued by the Tag unit during search mode.

The Base unit collects and compares RF signal strength from the Tag unit to determine location. However, when the Tag unit is already very close to the Base unit, the signals can appear emanating from several directions. This can also occur when both units are in an enclosed environment, which causes signal reflection off of walls from different directions, indicating a false location. If this is the case, you can mute the Base unit, and simply follow the audio beep issued by the Tag unit during search mode.

Q4. Why does the Base unit occasionally indicate a false direction?
This is also caused by the reflection or blockage of the signal. Signal reflection from walls or wire fences sometimes may indicate a false location. A body of water (e.g. fish tank) for even people may block the signal and weaker reflected signals from surrounding metal objects may indicate a false direction. To remedy this problem, try adjusting your position, wait for the “Status Indicators” to settle and try your search again.

This is also caused by the reflection or blockage of the signal. Signal reflection from walls or wire fences sometimes may indicate a false location. A body of water (e.g. fish tank) for even people may block the signal and weaker reflected signals from surrounding metal objects may indicate a false direction. To remedy this problem, try adjusting your position, wait for the “Status Indicators” to settle and try your search again.

Q5. What is the best practice to use search function?

Follow green Indicator direction then listen to beeping frequency. The Red LED Indicators show that you are walking in the right direction. DO NOT turn in circles on the same spot, keep walking in different directions and follow the Green LED. When you hear beeping and the sound effect speeds up, you are near the tag now.

Q6. What can cause out-of-range false alarm?

False alarms are caused by:

- Base and Tag units are too close to each other within 10 cm (signal saturation condition).

- Low battery power will cause unpredictable behavior such as false alarms.

- Either the Base or Tag unit has been placed in a pocket or RF signal block material or with 2.4GHz devices, which will block the signal.

Q7. Why is range alarm distance not consistent?

Because radio signal strength and signal reflection are affected by the environment and terrain, users may need to adjust the out-of-range distances (Near/Middle/Far) to compensate for environment factors.

Q8. No Alert when the Tag unit is out of range?

- Check whether the Tag unit is “Dis-alarmed” on the Base unit or not.

- Check for low battery on both units

- Check the out-of-range distance setting.

- If the Tag unit is set for “Far”, you may need a greater distance before setting off an Alert.

Q9. How many items can I protect with my Guardian Angel personal security device?

Guardian Angel 807G has two standard packages type, 807G2: with 2 tags and 807G4: with 4 tags.

Guardian Angel can support up to 4 tags, additional tag can be purchased

Q10. What will happen if Base unit and Tag unit are out of the valid range for a long time?

When both units are out of the valid range, the signal will be disconnected. For the first time the Base unit is disconnected from Tag unit, it will trigger alert every second and Tag unit’s LED flashes. After disconnected for more than 30 seconds, Base unit alarms every 2 minutes to conserve the battery power.

Q11. If I don’t need the Alert function temporarily, what should I do?

If there are one or more Tags that are not in use, you can deactivate or “Dis-alarm” them so that the Base will not issue any alerts notice to them. In the instructions above for setting out-of-range distances, there is a fourth option marked “Dis-alarm” on the Base Unit. You can set a Tag to this option if you want the Base unit to disregard that Tag unit.

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Q12. Does Guardian Angel have CE and FCC certification?

Yes. Guardian Angel has CE and FCC certification and compliance.

Q13. What range does Guardian Angel have and why it is vary from the environment?

- The maximum search range is 1600 feet or 500 meters for outdoors with Line-of-Sight.

- You can set different distance to trigger alarm (i.e. approximately 16 feet, 32 feet, or 64 feet). 


Guardian Angel is designed to react to the environment that it is in, based on the perceived risk. For example, if you are in a room full of many people or obstructions and cannot directly see your tagged item, then Guardian Angel’s security zone will be tighter more often than there were no people or obstructions in the same room. The ranges are only guidelines; you have to take the environmental condition into consideration.

Q14. How loud is the Guardian Angel audio alarm?

The base unit and Tag unit are 95db. (When the battery runs low, the loudness is reduced.)

Q15.What if other people use the Guardian Angel around me?

Each pair of Base and Tag has a unique ID code. Pairing system allows 65,535 ID codes to coexist at same environment for that moment.  Other Base units will not track your Tag unit.

Q16. What type of batteries is used?

Base unit uses AAA x 2; Tag unit uses CR2032 x 1.

Q17. How long will the batteries last?

Under Standby mode, when the device is turned on for 8 hours per day, the Base unit’s battery lifetime is 60 days, Tag unit’s battery lifetime 30 days.

Q18. How to conserve the battery?

Scan / search and alert sound use most of the battery energy. When you not use them please turn off the Base unit power, the Tag unit will go to sleep to conserve the battery life

Q19.What’s the situation that I turn on the Base and Tag unit and both of them alarm?

Each Guardian Angle package includes parried Base / Tag in the factory.

When the Base and Tag units are turned ON, it takes 8 to 15 seconds for the synchronization.

Q20.Will Base unit find the Tag unit through obstacles like walls or trees?

Yes, however the maximum valid distance will be reduced.

Q21.Can I use the Guardian Angel in other countries?

Yes. Personal security device works on 2.4GHz ISM frequency band, which is available all over the world.

Q22. Is Tag unit water resistance?

The standard Tag doesn’t support water resistance, but for the Pet’s production. It comes with “Water Splash Resistant Case / sleeve”. The Water Splash Resistant Case will protect again rain and splash water, it will not protect Tag under the water.

Q23.How do I know when to replace batteries?

There is a low battery alarm on the Base unit and Tag unit, a single beep sound every 2 minutes.

Q24. Troubleshooting steps for search or alert function?

Step 1: Check the battery

a. Power ON both the Base and Tag units, the LED should flash both Base and Tag unit. If not, please change the battery and test again.

b. If there is no LED flash after replaces the battery, please call for the maintenance or support.

Step 2: Checking if the connecting of base and tag unit
Both units will establish a link and blink synchronously, if not, please follow the Step 3 (paring process) or see the video of paring process to re-pair Base and Tag.

Step 3: Pairing Process (use Tag #2 as example)

1. Make sure the Base Unit and ALL the Tag Units are turned off.

2. To enter “Registration” mode, hold down the “Set” button (on the side of the Base unit) and the “Search” button for Tag #2 on the Base Unit and then, at the same time, turn on the Base Unit - as soon as the red light above the “Search” button (for Tag #2) flashes exactly twice, release the buttons (if you’ve already reached the 3rd flash, you have to start again).

If you’ve entered the “Registration” mode successfully, the light above the “Search” button and the light below the “Disalarm” light on the Base Unit will flash together.

   3. Finally, bring Tag #2 to within 10 cm (4 inches) of the Base Unit and turn it on. The Tag Unit will chirp twice, indicating a successful “Pairing”.

   4. Pairing the tags is a sequential process: If you re-pair #1 tag, you have to re-pair any tags after that tag. You cannot just replace and re-pair one tag in between tags.

Step 4: Please contact the agent or dealer for maintenance if the problem is still persisted.

Q25. Troubleshooting for Base and Tag cannot synchronize (LED blink every few seconds) to each other?

Sometime (very rarely) tag unit can go to deep sleep. You can remove the battery and insert back to wake up the tag unit.

Q26. Why does re-paring Base / Tag failed?

- Please make sure both units are not at low battery level.

- Pairing the tags is a sequential process: If you re-pair #1 tag, you have to re-pair any tags after that tag. You cannot just replace and re-pair one tag in between tags

Q27. Why the Base cannot find the Tag next to it?

Base and Tag need to have at least 0.5 – one-meter (2 – 4 feet) distance for search function to work.

Q28. Coin battery option and operating temperatures guideline.

The standard CR2032 coin battery’s operating temperatures is 40˚F ~104˚F (5˚C~32˚C).

You can also use LIR2032, rechargeable coin battery. It’s operating temperatures range is   -4˚F ~185˚F (-20˚C~85˚C).