To set up temperatur ranges for notification on the YoLink app, follow these steps:

1. Open the YoLink app and select the sensor device you want to set up.

2. Tap the three dots in the upper right corner to access the Details screen.

3. Tap Alert to go to the alert screen.

4. Set up the desired alert range for temperature (tap the pencil icon to set up the temp range easily).

5. Make sure the related strategy is enabled for app/email/SMS notification. To check the strategy settings, tap "View your alarm strategies" and select the related strategy.

6. Verify that YoLink app notifications are allowed in your phone settings, your email address is verified to receive email notifications, and your phone number is added to receive text message notifications. You can check your email and phone number settings in the YoLink app by tapping Menu (upper left) -> Settings -> Account.

Once you have set up the desired temperature ranges and notification settings, you will receive alerts if the sensor detects values outside of the specified range.

Yes, the IP rating is IP67.

A redesigned temperature sensor with a probe will be launched by the end of the second quarter of 2024, capable of operating within a range of -80 degrees to 200 degrees.

 To replace the battery for your YoLink YS8004 temperature sensor, follow these steps:

Use a pair of tweezers to carefully remove the four sealed rubber pads located at the base of the device. Use a screwdriver to unscrew the screws at the base of the device, and remove the base.

Remove the two old batteries and replace them with two new AAA lithium batteries.

Close and secure the base by reinstalling and tightening the four screws.

Finally, reattach the four sealing rubber pads to the base of the device.

Yes, the YoLink temperature sensor model YS8004 supports D2D (Device-to-Device) functionality. For instance, if you wish for it to activate another device upon reaching a low temperature, the sensor must be in low-temperature alert mode during pairing.

Under normal conditions, these sensors boast a two-year battery life. However, placing them in a freezer can significantly shorten this lifespan to one year or even less. In the case of YS8003, which employs two alkaline batteries rather than two lithium batteries, the reduction may be even more pronounced, potentially lasting around 9 months.

 Once you set up the network for your YoLink hub, please press the "set" button on the temperature sensor to activate your temperature sensor.

 Please try the following steps:

Remove the old batteries.

Press the button several times to discharge any capacitors.

Install brand new non-rechargeable batteries.

If this doesn't work, please contact YoLink support for further assistance.

 In the YoLink App, you can set up alert ranges for temperature sensors, but you cannot set a specific temperature for the sensors to trigger an alert. Once you have set up the alert range, the app will notify you when the temperature or humidity is outside of the range you have set.

No, it is not possible to extend or splice a longer cord onto the YoLink Weatherproof Temperature Sensor with Probe.

If you believe that your YoLink temperature sensor is not very accurate, you can try calibrating it by comparing its readings to those of another accurate temperature-measuring device. However, it is difficult to determine which device is absolutely accurate. YoLink sensors are calibrated at the factory and are guaranteed to be accurate, they use SENSIRION chips.

Yes, the YoLink YS8004 temperature sensor can be used with Amazon Alexa and Google Assistant. You can link your YoLink account to your Amazon Alexa or Google Assistant account to enable voice control. However, the sensor will not be able to be used for Alexa routine. Users can only ask for the sensor’s value through the voice control.

One example of an Alexa command for YoLink sensors is to edit the name of the sensor in the Alexa app and then ask Alexa about the temperature. For instance, if you rename a sensor to "Pool" in the Alexa app, you can then ask Alexa, "Echo, what is the Pool temperature?" to receive the temperature reading from that sensor.

To change the temperature unit on Google Home, follow these steps:

1. On the Google Home screen, tap "Settings".

2. Tap "Google Assistant".

3. Tap "Manage all assistant settings".

4. Scroll down to "Weather" and tap it.

5. Choose the temperature unit you prefer, either Celsius or Fahrenheit.

Please short-press the “Set” button on the back of the sensor to change the temperature unit.

Please update the YoLink app and the IFTTT to the newest version just in case. Please re-link your YoLink account to IFTTT and sync the device. (choose the T&H sensor list). Then go to create the applet to try again.

 To use YoLink Control Tech with a smart relay and temperature/humidity sensor, you'll need the YS8004-UC weatherproof temperature sensor, as it currently supports YoLink Control. When you receive the YS8004 sensor and YS5706 relay, contact YoLink customer support to update the firmware, as the necessary version isn't publicly released.

After updating the firmware, follow these steps to configure the temperature controller:

For high temperature alerts to turn ON the relay and low temperature alerts to turn OFF the relay:

1.Turn on the relay.

2.Press and hold the set button on the temperature sensor for 5 seconds until the green LED blinks.

3.Press and hold the set button on the relay for 5 seconds until the green LED blinks.

For high temperature alerts to turn OFF the relay and low temperature alerts to turn ON the relay:

1.Turn off the relay.

2.Press and hold the set button on the temperature sensor for 5 seconds until the green LED blinks.

3.Press and hold the set button on the relay for 5 seconds until the green LED blinks.

No, YoLink does not provide a certificate of calibration for its sensors, as they are fully calibrated at the factory and are guaranteed to be accurate without the need for additional calibration. Therefore, there is no calibration certificate available for the YoLink sensor.

For your reference, The YoLink temperature/humidity sensor uses very high-end digital sensors inside. (SENSIRION-SHTC3)

First, try pressing the button to see if the thermometer screen will light up or not. If it doesn't, open the battery cover and replace the battery. The rattling noise could be the sound of the thermometer's antenna resonating, which is normal and won't affect its performance. However, it could also be a sign of hardware failure. If replacing the battery doesn't solve the problem, please contact YoLink Customer Support for further assistance.

To refresh the data for the YoLink YS8003 temperature humidity sensor, you can either manually refresh it by pressing the "Set" button on the back of the sensor or wait for it to refresh automatically. The sensor data will be automatically refreshed in the following situations:

The SET button has been pressed.

At least 0.9°F (0.5°C) change over a period longer than 1 minute.

At least 3.6°F (2°C) change within 1 minute.

At least 5% change over a period longer than 1 minute.

Device alert level reached or restored to normal range.

The data will be refreshed automatically once an hour.

If you want to manually refresh the data, simply press the "Set" button on the back of the sensor, and the data will be updated immediately in the YoLink app.

If you are referring to the lack of log data in the app's History section, this is because the History tab only displays high/low temperature/humidity alerts. However, if you need access to more detailed sensor logs, you can tap the "More" button in the app to download a chart of the sensor data.

Please go to the temperature sensor page -> Please click "more"-> set the time period "weekly, daily, years"-> and click export to download the data from the YoLink app. After that, please send the file to your email after downloading the file to your phone.

The YS8004 temperature sensors only allow for hourly intervals in the export data for weekly and monthly reports. The exported value will be the average temperature within each hour. However, you can download a daily report that records each individual data point for more frequent data.

 Factory reset will erase all of your settings and restore it to factory defaults. After the factory reset, your device will remain in your Yolink account. Please hold the SET button for 20-23 seconds until the status light blinks red and green alternately, then, release the button （Hold the SET button longer than 23 seconds will ABORT the factory reset operation）. Factory reset will be complete when the status light stops blinking.

If you experience connection issues with your temperature sensor, try the following steps:

a. Ensure that your YoLink Hub is connected to the internet and powered on.

b. Check the distance between the temperature sensor and the YoLink Hub, and move them closer if necessary.

c. Replace the batteries in the temperature sensor if they are low.

d. Restart the YoLink Hub by unplugging it, waiting for 30 seconds, and plugging it back in. e. If the problem persists, contact YoLink Customer Support.

For YS8004, YS8005 and YS8006 temperature sensors, YoLink uses lithium batteries. Due to the characteristics of lithium batteries, the voltage fluctuates greatly in cold environments, which can cause the battery level to show low even if the battery capacity is actually high. However, the engineers have confirmed that this won't affect the actual battery life of the sensor. In extreme temperatures, the actual battery life of the sensor may last longer than what is shown in the app. They can help you update the firmware to 0409/0509 or newer, which optimizes the battery level display. Before updating the firmware, please place the sensor in a room-temperature environment. If the batteries do not return to full level after taking the sensor out of the freezer, please take out the batteries and measure the battery voltage, and feel free to contact YoLink support team.

Yes, it is normal for the temperature in a freezer to fluctuate by up to 10-15 degrees Fahrenheit in either direction. This is because the environment inside the freezer is not constant, and factors such as the frequency of opening the door, the amount of food stored inside, and the freezer's defrost cycle can all affect the temperature. Please set the appropriate alert range to avoid the false alarms.

Yes, the battery life of alkaline batteries will be significantly reduced if stored in an environment below 32°F (0°C). However, if stored above 32°F, the reduction in battery life will not be as significant.

The reason for this is that the 0364 and 0394 firmware versions use different chips. YoLink uses the numbering convention of 036x and 039x to distinguish between them, but both versions have the same functions and capabilities.

When the YoLink Temperature & Humidity Sensor is exposed to drastic temperature changes, such as going from a high temperature to sub-zero or from a low temperature to high temperature, it may produce water vapor and cause a short circuit in the circuit, resulting in an abnormal display. However, the device itself is likely still functional and can be restored in a few hours. To expedite the restoration process, you can wrap the Temperature & Humidity Sensor with plastic wrap and place it back in the freezer.

 Yes, you may do that. But we highly recommend you can put the sensor base into a zip-lock plastic bag for protection and leave the probe outside the bag before you place it into the freezer.

To refresh the data for the YoLink YS8004 temperature sensor, you can either manually refresh it by pressing the "Set" button on the back of the sensor or wait for it to refresh automatically. The sensor data will be automatically refreshed in the following situations:

The SET button has been pressed.

At least 0.9°F (0.5°C) change over a period longer than 1 minute.

At least 3.6°F (2°C) change within 1 minute.

Device alert level reached or restored to normal range.

The data will be refreshed automatically once an hour.

If you want to manually refresh the data, simply press the "Set" button on the back of the sensor, and the data will be updated immediately in the YoLink app.

You can go to YoLink App->Sensor screen->Device Details screen->Alert to swipe to left to set up unlimited low-temperature alert, then you won't receive low temp alert.