3G/4G USB WiFi Router Hotspot

With this low cost, unlocked USB WiFi router, you can easily bring your CL3000 online - without needing a local WiFi hotspot.

The router is unlocked: Simply insert your nano SIM card, configure your CL3000 to connect to the hotspot - and you’re ready.

Tip: Buy this as an option for your CL3000 to reduce the price by 25 EUR (~33%)

Buy now - or read more below!

75 EUR



This cellular WiFi router adds tons of flexibility to your CL3000 WiFi CAN logger!

With this hotspot and the CL3000’s ability to push data to your cloud server, you’ll have direct access to your data at all times - even for vehicles on the road.

Simply add a nano SIM card and power the hotspot via USB - either directly in modern vehicles or via an adaptor for your vehicle's cigarette lighter receptacle.

We offer two variants configured for 3G / 4G:
One for USA/Canada and one for Europe (see Tech Specs).

Note: You can definitely also use any other cellular USB router. We primarily offer one for the convenience of our users.

Below we outline typical use cases - as well as a guide on how to get started.

When Do You Need a 3G/4G WiFi Hotspot?

The CL3000 lets you record data from practically any vehicle - and many other CAN bus applications.

Further, by connecting to a local WiFi hotspot, the CL3000 can auto-transfer the log files via Push Mode to your cloud.

However, sometimes a local WLAN WiFi hotspot is too restricted - e.g. in below cases:

Vehicle Telematics: For vehicle fleet management you'll typically want a regular stream of data to be able to take action based on recent insights. By using this cellular hotspot, you can e.g. send 1 MB data chunks from your fleet of vehicles to your server with high frequency - allowing for more rapid decision making.

Further, with the CL3000's massive 16 GB storage, you'll never have to worry about loosing data. If a vehicle enters an area with no connectivity, the CAN data is simply transferred once the cellular hotspot gets online again.

Vehicle Field Testing: In vehicle field testing, data frequency may not be vital - but you’ll still want your data collected on a regular basis to learn and adapt. At the same time, vehicles may not return to a fixed WLAN position for months - and collecting the data manually is not an option.

Here, the cellular hotspot is a low cost and practical solution that shortens your time-to-data. It allows you to draw conclusions during field tests, rather than after. Further, the small size means it’s not a nuisance for the drivers.

Remote Machinery Monitoring: If you’re a production machinery OEM, you’ll want to be able to predict breakdowns at client sites - and ideally conduct remote troubleshooting to quickly resolve any issues. Here the CL3000 is a great solution.

However you may not always be able to leverage your client’s local WLAN. Further, if a local site changes their WLAN SSID or password, your CL3000 will be unable to connect. Here, a cellular hotspot may be a better solution as you maintain 100% control over the data transfer.

Remote Locations: Some CAN based equipment may be stationary or in a constrained space - yet with no local WLAN available. In these cases, the only solution to transfer data on a regular basis is to use a cellular hotspot. Examples include power grids, charging stations, construction sites and more.


Below we briefly outline how to use the cellular hotspot:

  1. Insert your nano SIM card into the small slot in the USB stick
  2. Connect to the hotspots SSID (cf. stick backside) with pass 12345678
  3. Access settings by entering in your browser (user/pass = admin/admin)
  4. Change the SSID name & pass under Settings/WLAN/WLAN Basic Settings
  5. Add your SSID name and pass in your CL3000's CONFIG.INI file (e.g. via CANvas)
  6. Test that the CL3000 is able to connect to the hotspot and your FTP server

Note: For some countries/service providers, it may be necessary to update the APN info - this can be done in the hotspot settings as well.

We do encourage you to evaluate the connectivity in the areas which you intend to log data from before scaling up your setup.

Check out our Tech Specs, FAQ or Reviews above - or go back to the top to buy!

Note: Check the frequency bands used by your data plan provider vs the ones supported. If your required region/bands are not covered, please contact us.

Frequency Scope (US/CA Config) FDD-LTE: B2/B4/B5/B7, UMTS: B2/B4
Frequency Scope (EU Config) FDD-LTE: B1/B3/B7/B8/B20, UMTS: B1/B8
No. of WiFi Connections 10
WiFi Security Mode Open, WPA-PSK, WPA2-PSK
Data Rate FDD-LTE: UL 50M / DL 100Mbps
TDD-LTE: UL 17M / DL 68Mbps
DC-HSPA+: UL 5.76M / DL 42Mbps
HSPA+: UL 5.76Mbps / DL 14.4Mbps
HSPA: UL 5.76Mbps / DL 7.2Mbps
UMTS: UL / DL 384Kbps
WiFi Frequency 2412MHz-2472MHz
Size 8.2 x 2.6 x 0.8 mm
Weight 16 g
Form USB stick
Installation Plug & play - no CD/installation required
SIM card Nano SIM card (as in most smartphones)
Antenna Built-in 3G/4G & WIFI antenna
WIFI antenna gain: -1 dbi (3G/4G: -1.5 dbi)
Power Powered via USB - e.g. in your vehicle
Voltage: 5V/1A, Power Consumption: <3W
Working temperature -10 to 45 degC (storage: -20 to 75 degC)
Certifications CE/RoHS

There are a number of data streaming devices on the market with built-in SIM card support. However, we’ve not done this in the CL3000 for couple of reasons:

  1. Costs: Integrating cellular in the device would add significant costs and complexity - which would mean higher prices and/or adding subscription fees.
  2. Modular: Not all users need cellular WiFi - we aim to keep the device “modular” so that you only pay for what you need
  3. Identical: The CL3000 can connect to a cellular hotspot, which is in practice identical to integrating it

In addition, the WiFi module provides flexibility: If you do not wish to connect via cellular, you don't have to. Also, if you want to have multiple CL3000s use the same hotspot (to optimize costs), you can.

No, this cellular hotspot works as a WiFi router itself - supporting up to 10 devices.

The cellular WiFi hotspot is a great solution for the CL3000’s Push Mode, where data is auto-transferred to your cloud.

However, this USB cellular hotspot does not facilitate access to the CL3000’s web interface via the internet. This requires port forwarding of the CL3000, which requires a more advanced router (both WLAN and cellular types exist). Of course, if your PC, phone or smartphone is also connected to the cellular hotspot, then you’ll be able to access the web interface.

The USB WiFi router lets you bring the CL3000 online while e.g. on-the-road in vehicles. Assuming stable connectivity, the CL3000 will thus be able to push data to your server on a steady basis. If you set your file split limit to the lower limit of 1 MB, this typically generates a new log file every minute. Upon creation of the file, the CL3000 will push it to your server.

In other words, in a stable connection scenario, you’ll be able to transfer files in very short intervals. It won’t be “real time” as you’d e.g. get via a wired USB connection - but in practice, use cases relying on remote data acquisition rarely require "real time" data transfer.

Ask yourself: What important decisions will you really make that require the data frequency to be real-time?

Next, ask yourself what you'll do about those vital decisions when there is a connectivity outage for 15 mins?

Intra-day frequency is great for decision making - but "real time" is in our opinion a bit overrated. For the same reason, you'll find that many "real time" platforms in reality present data with a 5-10 min delay - because it's practical.

If this seems reasonable for your use case, the CL3000 & cellular hotspot combination is probably a good fit. Further, the CL3000's 16 GB SD card ensures that when connectivity drops no data is lost - in contrast to streaming alternatives.

In our experience, this is important for e.g. telematics and vehicle fleet testing - and it's vital for e.g. error diagnostics, rare issue troubleshooting, legal compliance and insurance logging.

As a start, we cover these regions across two variants of the cellular hotspot. For some regions, the coverage provided by the frequency bands of one of these configurations may match - we suggest you check the coverage provided by your preferred local data plan provider.

If you’re looking for specific configurations with other frequency bands, please contact us and we’ll look into this.

Not yet. Currently, we recommend that our users identify the best local data plan to suit their needs.

Yes, you can connect up to 10 devices to the same hotspot. This is useful if you’re in the field and wish to e.g. re-configure the CL3000 and then test that it still correctly connects to your server.

Not necessarily. Many data plan providers offer semi flat rate solutions or capped transfer speeds. While the offers vary by country, examples exist where your download speed may be capped after a certain usage - but where your upload speed stays the same. Some flat rate payments also cap your upload speed after a certain bandwidth usage - but even at reduced speed, the hotspot solution may work just fine for your purposes.

In addition, you can set up data filters and pre downsampling to reduce the bandwidth usage significantly.

At CSS Electronics we are truly passionate about delivering great products - and fast, quality service!


J1939 WiFi Reverse Engineering
"The ease of use and added value of the CL3000 is excellent!
CSS responded quickly and adequately to our questions"

   — Remco Louter, Owner of Louter Control

WiFi CAN Logger Aircraft UAV
"The CL3000 works perfectly - and it has one of the best value/cost ratios in the market"

   — Yago Yáñez Marco, PhD at Singular Aircraft

J1939 DBC Truck Data
“The CL2000 is very easy to setup, the software is intuitive and the *.DBC feature is nice - highly recommend it!"

   — Curtis Steele, Manager, Product Development at ProAll

Agricultural Equipment Data DBC File J1939
"Never used a tool like this before
- the support was exceptional!

   — Jason Le, Technical Specialist at SunSource

J1939 Engine Test Stand Proprietary Data
“The CLX000 worked perfectly for reverse engineering proprietary J1939 data”

   — Daan de Roos, owner of DDR Engineering & Marine Projects



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