Frequently asked questions
Charges and account
Section titled “Charges and account”Is there a monthly fee?
Section titled “Is there a monthly fee?”Not for monitoring. When you buy a device, you get the app, the history, the charts, the reports, push and e-mail notifications, sharing and the API. You pay only for:
- SMS and phone calls.
- Extra rules, groups, floorplans and guests.
- The SIM card of GPS trackers.
See What is included for free.
I need more rules. What do I do?
Section titled “I need more rules. What do I do?”Buy extra rules, or add devices. Each device increases your rule allowance. See What is included for free.
How much do SMS cost?
Section titled “How much do SMS cost?”SMS and calls need a package. There are no free SMS or calls. You see the prices in the shop: 100 SMS, 200 SMS, 100 calls, 200 calls. See SMS and call packages.
Why do SMS messages not arrive any more?
Section titled “Why do SMS messages not arrive any more?”Your SMS balance is empty, or you sent many SMS messages in a short time. Look at Allowances in Account. See SMS and call packages and An alert did not arrive.
What happens if I do not renew the GPS SIM card?
Section titled “What happens if I do not renew the GPS SIM card?”The tracker loses its connection. Its history stays in the platform. See Subscriptions and SIM for GPS.
Where do I find the invoice?
Section titled “Where do I find the invoice?”In your account in the shop, in the list of your orders. See Orders and invoices.
What is the warranty of the devices?
Section titled “What is the warranty of the devices?”Two years. See Returns and warranty.
How long do you keep my data?
Section titled “How long do you keep my data?”36 months for all readings. The daily and monthly summaries stay longer. See Your data (retention, export, deletion).
Can I download my data?
Section titled “Can I download my data?”Yes, free and with no limit. You download CSV files from the reports, or you get the data with the API. See Measurement reports (PDF, CSV) and Download historical data.
How do I get a temperature report for a health inspection?
Section titled “How do I get a temperature report for a health inspection?”Make a PDF report from the Reports section of the device. Select the temperature and the range that the inspection (HACCP) asks for. See Measurement reports (PDF, CSV).
What happens when the internet goes down?
Section titled “What happens when the internet goes down?”The device continues to measure and keeps the readings in its memory. When it connects again, it sends them. See Gaps in the chart.
Is there an API?
Section titled “Is there an API?”Yes. See REST API.
Devices and installation
Section titled “Devices and installation”Do the devices operate with 5 GHz WiFi?
Section titled “Do the devices operate with 5 GHz WiFi?”No. The WiFi devices need a 2.4 GHz network. See Router settings.
I changed the router or the WiFi password. What do I do?
Section titled “I changed the router or the WiFi password. What do I do?”Do the WiFi setup again from the app. See Change the router or WiFi password.
How do I move a device to a different account?
Section titled “How do I move a device to a different account?”See Move a device to another place or account. If the app says that the device belongs to someone else, see The device belongs to another account.
I found the serial number. Which device is it?
Section titled “I found the serial number. Which device is it?”See Device families (serial numbers).
Do you have a calibration certificate or HACCP?
Section titled “Do you have a calibration certificate or HACCP?”See Certifications and compliance.
Where do I find the manual or the CE declaration?
Section titled “Where do I find the manual or the CE declaration?”See Manuals and CE declarations.
Can I see the devices from a computer?
Section titled “Can I see the devices from a computer?”Yes. Open app.hamsystems.eu and log in with the same account. The WiFi setup of a new device is possible only in the mobile app. See The mobile app.
How do I give access to another person?
Section titled “How do I give access to another person?”If the person has an account, share the device with that account. See Share devices. If the person has no account, send a guest link. See Guests and users.
Which languages does the app have?
Section titled “Which languages does the app have?”32 languages. You change the language in the side menu. See Language, theme, units.

