Frequently asked questions

According to the FDA, those wearing a pacemaker can still safely use a mobile device.

here are some precautions to take when using a mobile alarm device:

• Maintain Distance: Try to keep the mobile alarm device at least 20 centimeters away from the pacemaker to minimize potential interference.
• Consult a Doctor: It is advisable for the user to seek advice from a cardiologist or specialist before using the mobile alarm device to ensure safety.
• Consider Alternative Wear: Consider wearing the device on a wristband or clothing clip instead of using a pendant around the neck.
• Monitor Body Response: Users should pay close attention to any unusual bodily reactions, such as irregular heartbeat, while wearing the mobile alarm device. Our device power level is 4600GS ±300.

Our watches have all passed REACH and RoHS tests, and the straps come with corresponding material documentation to ensure their safety.

However, please note that wearing the strap too tightly may cause sweating and hinder air circulation under the strap, potentially leading to rashes. When tightening the strap, please leave it slightly loose. If you notice any abnormalities, please stop using the watch immediately and consult a doctor.

Unlike Mobile phone, our device has fall detection, no motion alarm, Single-button SOS alarm.

On push of a single button, our device will call and send location to your loved ones.

The battery life (run time) is influenced by different factors like network coverage, GPS availability, outside temperature, and your daily movement.

Moreover, it depends on how often you use the different features. The Live Tracking mode needs more battery compared to smart power saving mode.

Depending on usage, the battery lasts between 2 and 7 days.

There is a low battery warning, you could set the low battery percentage, and when battery reaches that percentage, you will receive an alert by SMS, app notification or voice warning.

We recommend that the device should be placed on the charger when not in use and while sleeping.

Developing this routine will ensure that the device is always ready to be used and reduces the likelihood of the device running out of battery.

It is better to have partial discharge and recharge in the battery rather than fully discharging and recharging as it puts less stress on the battery and hence it tends to last longer.

When your battery is discharging, aim to recharge as soon as the battery level falls to 20%. While you’re charging the battery, you should aim to reach at least 90% capacity of the battery.

Also avoid the battery being exposed to extreme temperatures.Whenever possible, you should avoid leaving your tracker in hot cars or in chilly rooms.

If you’re not going to be using your device for an extended period of time, then turn it completely off and don’t forget to recharge the battery every 2 to 3 months (to prevent the battery from running dry over a long period of inactivity)

No distance limitation, our devices are using cellular network and GPS solution etc, where there are network coverage and GPS, there could be using our device.

Yes, it exactly supports the 4G network and VoLTE, also with fallback to the 3G/2G when the 4G or 3G network is weak.

LTE-M is a type of the fourth generation (4G) cellular network that is specifically designed for the Internet of Things (IoT). It is a low-power wide-area network (LPWAN) – a specialized category of wireless narrowband networks designed to maximize coverage, lower costs, and reduce power consumption for IoT devices.

However, not all carriers with 4G coverage have LTE-M networks.

Our devices support Nano SIM card and EV-07BX, EV-206M, EV-201M also support SIM chip on the PCB board.

Nope.

We’ve found that these steps fix most of the problems encountered during the initial setup or from a random connection interruption.

SIM Card: A few things you should check from the SIM management side are:

• Check the SIM card is inserted correctly into the device.
• Does the device recognize the SIM? Can the device read the ICCID number? Check your device LEDs for SIM card network registration status. (If the green light on the device flash very slowly (once in 3 seconds), that means the SIM cards does not recognize the SIM card)
• Is the SIM activated from SIM provider?
• Have you tried using the SIM in another device? like mobile phone. Using the SIM in a mobile phone is the easy way to verify the proper functioning of the SIM.

Network: Network registration and data connectivity Network registration means that the SIM is allowed to the network, you can send SMS messages once registered. Data connectivity comes into play after network registration once you have allowed data (and roaming) on your device.

• Are you able to send and receive text messages? If you can send or receive SMS messages, you are registered successfully to the network.
• Does the SIM support data connectivity? Check with your SIM provider
• Check if the SIM has reached the data consumption limit. Check with your SIM provider
• Have you set the correct APN settings? You can find APN settings from SIM provider. Depending on the operator, APN settings are applied differently.
• Network coverage. You may have problems in places where general cellular coverage is weak. For example, basements, warehouses, or remote areas. Make sure the selected network covers your area.
• Have you done a restart to your device? Sometimes the easiest things help.

It takes about 5MB-20MB per Month, but it mainly depends on the pre-select working mode and data transmission time interval.

If only uses text message function, it won’t use any data from SIM card.

• Make sure the command you are sending is in a correct format as the command list we provide, and the signal is good enough to receive and send SMS.
• Please check whether you setup a password for this device. if yes, you must add the password before each command.
• You may activate the SMS whitelist function, and the number you are using to send the command is not on the contact list, then the device will not reply to any of your command unless your number is added to the whitelist.

• Green LED – indicates network connection status
• Single slow flash every 3 seconds – the device was not installed sim card, does not detect sim card or without credit.
• Single flash every 3 seconds – the device is registered to the network but not yet the data connectivity.
• Double flash every 3 seconds – the device data connectivity is working. (This means the platform can receive data from the device, for example up-to-date location, alarms etc)
• Continuous quick flash: incoming call
• Blue LED – Indicate GPS signal, WI-FI，Home Beacon, BLE
• Off – GPS chip is in sleep mode (this will happen when the device is stationary for more than 3 minutes)
• Once quick flash every 3 seconds – searching for GPS signal
• Twice quick flashes every 3 seconds – the device has a valid GPS position
• Three times quick flashes every 3 seconds -BLE location or Home Wi-Fi/Home beacon position
• Four times quick flashes every 3 seconds – Wi-Fi location Red LED – Indicates charging
• Single flash every two seconds – the device is being charged
• Solid – device is fully charged.

You may activate the incoming call whitelist function for the device.

If your number is not on the contact list, the device will never pick up the call from your number.

So, you will need to add your number to the contact list first.

APN means Access Point Name, a mobile device making a data connection must be configured with an APN to present to their carrier, the carrier will then examine this identifier to determine what type of network connection should be created.

Contact with the carrier to get your APN.

Environmental Factor and GPS Drift can impact the accuracy of locations and activities on your device.

Buildings, bridges, trees, steel, interference Not enough satellites in line of sight Position of satellites Use indoors or underground Multipath: signals reflected off buildings or walls Radio interference or jamming Major solar storms Temporary gaps in coverage

GPS drift, in the most practical sense, is the difference between your actual location and the location recorded by a GPS receiver. Consumer-grade GPS receivers are not 100% accurate, this will usually cause a difference between where you are and where your GPS receiver believes you are.

The GPS location accuracy of our device outdoor is around 5~20 meters, 95% of the time.

GPS drift is most often caused by reflections or shadowing on an image. It can also be due to atmospheric conditions which alter throughout the day, being most pronounced in the early morning or late afternoon. Due to the sun’s low angle relative to the atmosphere, there is more atmospheric interference.

Examples of GPS Drift and Environmental Factors

• Example 1: GPS Indoors The image below shows a GPS device that was turned on and recording in a building. This illustrates what it would look like if you were to record GPS while standing still in a highly degraded GPS environment.
• Example 2: Stopping During an Activity This image shows a user that stopped for a short amount of time without pausing his activity. You can see that the device continued to record GPS points while the person was stopped. This added some additional distance to their activity.
• Example 3: GPS Distortion Caused by Environmental Factors In the example below, the device was updating locations in an area known as an “Urban Canyon”. Urban Canyons cause degraded signal due to poor visibility of the horizon and GPS signal refraction caused by windows on taller buildings. When signal is very degraded, the GPS accuracy of your device goes down.

Assisted GPS is a system that is often able to significantly improve the startup performance or time-to-first fix and improve the GPS location to be more precise.

GPS won’t work inside a building, layers of concrete, steel, and windows with metallic films often block GPS satellite signals.

However, our device supports BLE Beacon, Wi-Fi and cell locate service which can be used inside a building, but compared to the GPS satellite, Wi-Fi and cell locate service accuracy is proven to be worse than GPS.

Wi-Fi positioning is a location technique that uses characteristics of wireless access points (APs) to position connected devices.

By scanning the Wi-Fi hotspots and the signal strength detected by Wi-Fi enabled devices, this approach can provide accurate location simply by listening to AP signals without connecting to Wi-Fi networks.

It can work in areas where satellite positioning systems are unreliable, such as in dense urban areas and indoors.

The accuracy depends on the number of access points (Aps) that are observed and the environment in which they are deployed.

Assuming that the ground truth of APs is precise, as the number of APs increases in a given area, the more accurate the location results will be.

Accuracy can improve as more access points are added, for indoor and outdoor location use cases.

Set your home Wi-Fi MAC address to your home location or safe areas at your device.

Then it can show your home location or safe areas on the map.

Device scans home Wi-Fi every 5 minutes. It provides you out of home information once device disconnect to your home Wi-Fi. And let you know you are home if it connects to your home Wi-Fi again.

When device is in range of a home Wi-Fi, 4G and GPS is turned off, thus battery consumption is significantly decreased. (4G turned off only for pet tracker)

Set your home beacon MAC address to your home location or safe areas at your device.
Then it can show your home location or safe areas on the map.

Device scans home beacon every 5 minutes.

It provides you out of home information once device disconnect to your home beacon.

And let you know you are home if it connects to home beacon again.

When device is in range of a home beacon, 4G and GPS is turned off, thus battery consumption is significantly decreased. (4G turned off only for pet tracker)

The range of the home beacon in open space is up to 25 meters.

Walls and other solid obstructions may significantly shorten the range of the home beacon. Additional home beacons may be needed to get full coverage of home.

You can pair up to 3 to 10 home beacons with your device.

20pcs beacons at most.

You should go beacon V2 solution, to build a beacon system in your platform.

• Send a text message “Loc” or “Loc,gps” to the device, wait for a while then you will get a response from the device with a google map link;
• Request for current location by clicking “single location” button on “Smart Locator” APP when the device is online, it will update the location accordingly, and then you can get the detailed address on the map.
• Login our web platform “Smart Locator”, and then request for current location by clicking “single location” button like you do with the APP. Please note option 1 and 2 won’t work if the device is offline.

Up to 10 emergency contacts can be programmed into the device.

Yes, the device will not get through the strangers’ call and SMS if you open the whitelist phone number for call and SMS.

Only the preset numbers can make calls and texts to the device and get a reply.

If only need the device to send text and make call when emergency happened, we would recommend working mode 4, time interval 0, it’s more power saving.

If need to connect to the server or APP, and keep the device online, it’s better to use mode 6, and set the time interval for moving and no moving.

Double click the side down button, you will hear “voice prompts are turned off”

You can also send a text message “beep0” to the device, when you get reply “Beep Off” means the voice prompts are switched off.

We recommend that you do not set the zone for less than 1000 feet. This helps prevent false alerts.

Yes, we can integrate the other sensors Bluetooth protocol to work with our device.

When the device is turned off, the device will wait for the SMS/alert to be sent before execution of power off.
If the connection is bad and information cannot be sent, the device will be off anyway one minute later.

Please check the battery connector is loose or not, If not, install well to test again.