Frequently Asked Questions

Plug it in, mount it, open the app, and set your thresholds. Setup is self-install, so you don’t need a technician. For the Arvana Pro, the steps are:

1. Power on. Slide the switch on the bottom of the device to ON. The front light flashes white while it searches for a cellular connection and turns solid white once connected. This can take up to 3 minutes.
2. Connect the probe. Push the probe fully into the probe port on the bottom of the device.
3. Create your account. Download the Arvana app and follow the on-screen instructions.
4. Add your device. In the app, tap Add Device, enter the Device ID on the back of the device, then set your temperature and humidity thresholds and alert notifications.

For a full walkthrough, see the Initial Setup tutorial below.

Arvana Pro monitors ambient temperature and humidity with a long-lasting battery. Arvana Pro+ adds external probes for monitoring inside refrigerators and freezers.

Yes. In addition to power outage monitoring, Arvana Lite continuously monitors temperature and humidity and can alert you when conditions move outside the ranges you've set.

For monitoring temperature from inside refrigerators and freezers, Arvana Pro+ is the better choice. It supports one or two external temperature probes designed for refrigeration monitoring.

No. The cellular connection is built in and service is included.

Arvana needs some cellular coverage to work, so it won’t work with zero signal. It has handled spotty coverage well, but we recommend checking coverage before you buy or install. Check the AT&T coverage map and the T-Mobile coverage map for your address.

Reception is usually better on higher floors than in basements. After you place the device, you can run a network test to confirm it can connect.

The Arvana Pro uses 4G LTE Cat 1 and is compatible with AT&T, T-Mobile and Cellular One.

The Arvana Lite lasts 72 hours on battery. The Arvana Pro and Pro+ last up to 60 days in Default Mode and up to 18 months in Battery Saver Mode.

The Arvana Lite measures -4°F to 140°F and 0–95% humidity (non-condensing). The Pro+ probe measures -40°F to 158°F.

The Arvana Lite updates every 10 minutes. The Arvana Pro and Pro+ updates every 10 minutes by default and on battery save mode every 60 minutes

Keep the main unit outside the appliance and route the probe inside, placed where you want to measure. The probe wire is 2 meters long, and the cable can pass through the door gasket without breaking the seal.

The main unit is designed to stay outside the appliance, which is why the Pro+ probe is 2 meters long. It can sit on a metal appliance, but not inside it.

No. The Pro+ probe only measures down to -40°F, which does not cover ultra-low freezers.

Up to 2 probes.

Choose a spot with cellular signal, away from direct sunlight and heat sources, and near an outlet. Keep the air vents on the back of the device clear so air can flow. You can place the device on a metal appliance, but not inside it. After you first power it on or move it, allow up to 30 minutes for the sensors to adjust and give accurate readings.

To mount it, remove the paper backing from the self-adhesive tape on the back of the wall mount and press it firmly to the wall. Then slide the device onto the two mounting pegs on the front of the mount.

Yes, with the Pro+ and its probe.

Arvana operates from -4°F to 140°F and 0–95% relative humidity. For outdoor or damp locations, contact support before installing.

It plugs in for power, and the built-in battery keeps it running during an outage. The Arvana Pro charges over USB-C and runs in Default Mode whenever it is plugged in.

Yes. After moving it, run a network test to confirm it can connect, then allow up to 30 minutes for the sensors to adjust.

Battery Saver Mode extends battery life to over 18 months. The device connects to the network less often to send readings, but if a reading falls outside your alert thresholds, it connects immediately to send an alert. Turn it on in Device Settings in the app. When the device is plugged in, it runs in Default Mode regardless of this setting.

In Battery Saver Mode, settings changes (such as alert thresholds, or turning Battery Saver Mode off) apply the next time the device syncs. To apply them right away, run a network test. It syncs all pending updates during that connection.

Triple-click the button on the side of the device. The front light flashes white while it searches and turns solid white once connected. If the device is unplugged, the light stays on for one minute. We recommend running a test whenever you move the device to a new location.

Plug a USB-C cable into the port on the device. A full charge from 0% takes about 3 hours. If you’re storing the device, charge it once every 3 months to keep the battery healthy.

The Arvana Pro has a signal light on the front and four battery lights. The front signal light shows your connection status:

When the device runs on battery, the front light is off by default to save power. It only blinks when it sends data. To see the status light, triple-click the test button. If the device is unplugged, the light stays on for one minute.

A solid red light means the device could not connect to the network. Turn the device off, wait two minutes, then turn it back on. If the light stays red, move the device to a different location and restart it. Higher floors usually have better reception than basements.

Solid yellow means the device is connected, but the signal is weak. If you want a stronger signal, try a different spot, such as a higher floor, and run a network test.

When the device is plugged in, the four battery lights work as a progress bar:

A blinking battery light means it is charging. The blinking light shows the current range. For example, two solid lights with the third blinking means it is charging and currently between 51–75%.

The battery lights stay off when the device is unplugged, to save power. Press the test button once, and the lights briefly show the current battery level.

A single red battery light means the battery is critically low (15%). Plug the device in right away.

Press it once to briefly show the battery level. Triple-click it to run a network test and show the signal status on the front light.

You can send alerts to up to five contacts by text, call, or email.

Yes. A plugged-in Arvana keeps running on its backup battery for up to 72 hours during an outage, and its built-in cellular connection means alerts still go out even if your Wi-Fi goes down with the power.

High temperature, low temperature, freeze, high and low humidity, and power lost and restored.

Yes. You set the limits that matter for your space.

Yes. You can manage an unlimited number of devices in one account.

Your data is stored for one year. You can download it as a CSV on the Arvana Lite, Pro and Pro+.

Yes. Once a teammate is added to your team, you can set them as view-only or admin.

A restored alert is sent when the temperature or humidity returns 3° into the safe range after a high or low alert.

Arvana sends alerts by push notification, text message and email.

Yes, both.

Yes. Arvana is available on iOS, Android and the web.

Yes. Your historical data is available in the app. To learn how to create and run reports, see the Running Reports tutorial.

Yes. In the web app, hover over the Battery and Signal icon.

When clocks change, you may see a one-hour gap in spring or a repeated hour in fall in your timestamps. This is expected, and your data has not been lost or duplicated. Alerts keep working normally through the change.

Cellular service renews for $59.99 per device per year after the first year.

Yes. If you're ordering 10 or more devices, contact our team for bulk pricing.

The device, the app, and your first year of cellular service. Shipping is also free.

Yes. Contact support and we’ll help you with your order.

We ship to the US and Canada.

We offer a 30-day return policy.

Yes. Arvana devices come with a lifetime warranty.

Yes. Add them to your existing account at any time.

Check the front signal light. If it is solid red, turn the device off, wait two minutes, and turn it back on. If it stays red, move it to a different location and restart it. Higher floors usually have better reception than basements. If the device is on battery, triple-click the test button to see the light.

See the Lights & Battery section above.

You may not have received a high or low alert because a restored alert has not been sent since the last one. A restored alert is sent when the reading returns 3° into the safe range. Updating the alert thresholds in the app resets the alert.

A single red battery light means the battery is critically low (15%). Plug the device in right away. The battery is rechargeable and charges over USB-C.

The Device ID is on the back of the device.

After you first power the device on or move it, allow up to 30 minutes for the sensors to adjust. Keep it out of direct sunlight and away from heat sources and vents, and keep the air vents on the back clear.

A difference of up to 2°F is normal, especially if the unit and the probe are in different places. The probe is more exposed to the environment, so it responds to temperature changes faster.

The probe may not be near the refrigerator’s built-in sensor. Temperatures vary inside a fridge, and spots closer to the cooling source are usually colder.

The probe may be loose or damaged. Make sure it is pushed fully into the probe port. If readings still don’t appear, contact customer service for a replacement probe.

All devices are tested for accuracy at the factory. If you need a traceable certificate, contact support. Traceable certificates are available for an extra charge. For the Arvana Pro, temperature accuracy is ±0.5°F typical (±2°F max), humidity accuracy is ±2% typical (±5% max), and probe accuracy is ±0.9°F typical (±3.6°F max).

We’re currently developing an API and integrations.

Yes. You can create reports in the app. See the Running Reports tutorial once it is available.

Yes. One account can manage an unlimited number of devices. You can group locations, and there is a per-location view.

Yes. Large rollouts also come with an account manager.

The Arvana Pro complies with Part 15 of the FCC rules (Class B) and with Innovation, Science and Economic Development Canada licence-exempt standards.