Rugged Tablet & Industrial PC FAQ

Find answers to common questions about CENAVA rugged tablets, rugged handhelds, rugged laptops, industrial computers, hazardous-area devices, OEM/ODM customization, ordering, shipping and technical support.

For model-specific questions involving operating systems, IP ratings, MIL-STD-810H testing, ATEX/IECEx certification, battery design, interfaces or optional modules, always refer to the specification of the exact product configuration.

Company & Purchasing

1. Why choose CENAVA?

CENAVA focuses on rugged mobile computers and industrial computing hardware for demanding professional applications.

Our capabilities include in-house product engineering, OEM/ODM customization, rugged tablets, handheld terminals, rugged laptops, industrial computers and selected hazardous-area devices.

Customers can also configure features such as:

• Windows, Android or selected Linux operating systems

• Barcode scanners

• NFC and RFID

• 4G/5G

• GPS/GNSS and RTK

• RJ45 Ethernet

• RS232

• High-brightness displays

• Battery configurations

• Mounts and accessories

• Branding and packaging

We recommend selecting equipment according to the actual software, environment, interfaces and certification requirements rather than relying on one specification alone.

2. Are you a manufacturer or a trading company?

CENAVA is a manufacturer and industrial hardware solution provider specializing in rugged and industrial computing products.

We support product development, hardware configuration, structural customization, software integration, production and technical support for business customers and project deployments.

3. What product lines does CENAVA offer?

Our main product categories include:

Rugged Mobile Computing

• Rugged tablets

• Rugged handheld computers

• Rugged laptops and industrial notebooks

Industrial Computing

• Industrial panel PCs

• Industrial touch computers

• Fanless industrial computers

• Industrial computing terminals

Hazardous-Area Computing

Selected rugged devices are available in configurations designed for hazardous-area projects with ATEX, IECEx or other applicable certification depending on the exact model.

We also provide rugged hardware for healthcare operations, warehouse management, manufacturing, field service, utilities, transportation and other professional applications.

4. Can I order a sample before placing a bulk order?

Yes. We ship samples for product evaluation on most models.

Sample price, freight, lead time and configuration depend on the model and required options. Contact the CENAVA sales team with the product model and application requirements for a sample quotation.

5. Can you add our logo to the product?

Yes.

Branding options include:

• Laser engraving

• Silk-screen printing

• Boot logo

• Product labels

• Packaging branding

The minimum order quantity depends on the model and level of customization.

6. Do you support OEM and ODM customization?

Yes.

CENAVA supports OEM/ODM projects based either on existing product platforms or on project-specific requirements.

We customize:

• Housing and appearance

• Structural design

• Display

• CPU platform

• RAM and storage

• Operating system

• Ports

• Barcode scanner

• RFID/NFC

• Fingerprint reader

• Wireless modules

• GPS/GNSS/RTK

• Battery

• Accessories

• Firmware and software

• Branding

• Packaging

The available changes depend on project volume, engineering feasibility and certification requirements.

7. Can you customize the packaging?

Yes.

Custom packaging, product labels, cartons, manuals and branding can be evaluated for OEM/ODM orders.

Provide your artwork, labeling requirements and target market during project evaluation.

8. What shipping methods do you support?

For samples and small orders, common international express services include:

• DHL

• UPS

• FedEx

• TNT

• Aramex

For larger shipments, we also arrange air freight and sea freight.

The best shipping method depends on order quantity, destination, delivery time and freight cost.

9. Can you ship to our freight forwarder or agent in China?

Yes.

Provide the freight forwarder's:

• Company name

• Address

• Contact person

• Telephone number

• Warehouse code or customer reference

We can coordinate domestic delivery to the designated forwarder.

10. Can you ship orders to an Amazon FBA warehouse?

We arrange this for applicable orders.

Please provide the required:

• SKU labels

• Carton labels

• Packaging specifications

• FBA shipment requirements

Lock the final preparation with us before production and shipment.

11. What payment methods do you accept?

Payment methods include: 

• T/T bank transfer

• PayPal

• Escrow

• Other agreed international trade terms

Payment terms for large-volume, customized or repeat orders go into the quotation or sales contract.

Product & Configuration

12. Do you offer Windows and Android rugged tablets?

Yes.

CENAVA provides rugged tablet platforms based on Windows and Android, with selected Linux configurations available on certain products.

Choose the operating system according to the software that must run on the device.

Windows is commonly used for:

• PLC software

• Equipment diagnostics

• MES

• SCADA

• Windows enterprise applications

Android is commonly used for:

• Warehouse applications

• Barcode scanning

• Field inspection

• Logistics

• Mobile forms

• Custom enterprise apps

13. Do your rugged tablets have RJ45 Ethernet?

Selected models have built-in RJ45 Ethernet.

Depending on the device, Ethernet may be:

• 100 Mbps

• Gigabit Ethernet

• Dual Ethernet on selected rugged laptops

Models without native RJ45 may support Ethernet through USB or docking accessories.

Always check the exact product specification before ordering.

14. Do your tablets support RS232?

Selected industrial tablets and rugged laptops include native RS232 serial ports.

RS232 is useful for connecting compatible:

• PLCs

• Controllers

• Industrial instruments

• Legacy machines

• Diagnostic equipment

RS422/RS485 options exist on certain project configurations.

15. Do CENAVA tablets support barcode scanning?

Yes.

Selected models can integrate professional 1D/2D barcode scan engines.

We fit scan engines designed for:

• Standard 1D barcodes

• QR codes

• Data Matrix

• PDF417

• Small or high-density codes

• Damaged or low-quality labels

Tell us the barcode symbologies and reading conditions before we pick the scanner module.

16. Do your rugged tablets support NFC and RFID?

Yes.

Data-capture options include:

• NFC

• HF RFID

• LF RFID

• UHF RFID

• 1D/2D barcode scanning

• ID-card readers

• Fingerprint readers

NFC and RFID are not the same technology — choose by tag type, frequency and required reading distance.

17. Do your tablets support GPS and RTK?

Many rugged tablets support GPS/GNSS positioning.

Satellite support covers combinations of:

• GPS

• BeiDou

• Galileo

• GLONASS

RTK high-precision positioning comes on certain configurations.

Actual positioning accuracy depends on the receiver, antenna, correction service, satellite conditions and deployment environment.

18. Do you offer 4G and 5G rugged tablets?

Yes.

Available cellular bands and modem configurations vary according to model and destination market.

Check local carrier and frequency-band compatibility with us before ordering.

Ruggedness & Environmental Protection

19. What is the difference between IP65, IP67 and IP68?

IP ratings describe enclosure protection against solids and water.

IP65
Dust-tight and tested against water jets.

IP67
Dust-tight and tested against temporary immersion.

IP68
Dust-tight and tested for immersion conditions beyond IPX7, with the exact depth and duration defined for the product.

Do not assume that a higher water digit automatically covers every lower water test.

Select the IP requirement according to the actual environment.

20. Are CENAVA rugged tablets waterproof?

It is more accurate to describe a device according to its specific IP rating rather than simply calling it “waterproof.”

For example, an IP67 product is designed to meet specified temporary-immersion conditions, but this does not mean unlimited underwater operation.

Port covers, battery doors and seals must also be used correctly to maintain the rated protection.

21. Do your rugged devices meet MIL-STD-810H requirements?

Selected CENAVA rugged tablets, handhelds and laptops are tested according to applicable MIL-STD-810H methods.

Depending on the product, documented rugged testing can include conditions such as a 1.22-meter transit drop.

MIL-STD-810H is a test-method standard rather than one universal product certification.

For critical projects, ask us for the exact test method, procedure and test report for the model you are buying.

22. What operating temperatures do CENAVA rugged tablets support?

Many CENAVA rugged platforms are designed for operating temperatures around:

-20°C to 60°C

Selected models can be configured for lower-temperature applications.

The exact operating, storage and charging-temperature ranges vary by model and battery configuration.

For cold storage, vehicle installations or extreme outdoor projects, ask for these specifications separately.

23. Are sunlight-readable displays available?

Yes.

We fit approximately 700-nit displays on many rugged tablets; certain products offer 1000-nit high-brightness configurations.

Higher brightness can improve outdoor visibility but can also increase battery consumption and thermal load.

Choose the screen according to the actual lighting environment.

24. Do CENAVA tablets support glove and wet-hand touch?

Selected models support glove-compatible touchscreen operation.

Wet-hand touch is also available on certain configurations.

These features can be useful in:

• Construction

• Cold storage

• Agriculture

• Utilities

• Outdoor field service

• Industrial maintenance

Test touch performance with the actual gloves and working conditions your team uses.

Explosion-Protected Devices

25. Do you offer ATEX and IECEx rugged devices?

Yes.

CENAVA offers selected hazardous-area rugged devices with ATEX, IECEx and other applicable certification depending on the exact product.

These products are designed for applications such as:

• Oil and gas

• Petrochemical facilities

• Chemical plants

• Mining

• Pharmaceutical production

• Combustible-dust environments

Always verify the exact certificate, Ex marking, Zone classification and configuration before deployment.

26. Is an IP68 tablet automatically explosion-proof?

No.

IP68 describes protection against dust and water ingress.

ATEX and IECEx address ignition risks in potentially explosive atmospheres.

A standard IP68 rugged tablet must not be used as a substitute for a properly certified hazardous-area device.

27. Can I add any barcode or RFID module to an ATEX/IECEx tablet?

Not automatically.

Optional modules, batteries, accessories and structural changes may affect the approved hazardous-area configuration.

Only use hardware that is covered by, or explicitly permitted under, the relevant certificate and product documentation.

Battery & Power

28. Do you offer long-battery-life rugged tablets?

Yes.

Battery options vary by platform and can include:

• Standard internal batteries

• 10,000mAh batteries

• Selected 20,000mAh configurations

• Removable batteries

• Hot-swappable battery systems

Battery runtime depends on CPU load, display brightness, cellular communication, GPS, scanners and other connected modules.

29. What is the difference between a removable and hot-swappable battery?

A removable battery can be physically replaced but may require the device to be shut down.

A hot-swappable battery can be replaced while the device remains powered.

True hot-swap designs normally use either:

• A small internal bridge battery

• A second active battery

Do not assume that every removable-battery product supports hot swapping.

30. Why does the battery percentage sometimes change quickly after charging?

Battery-percentage readings are estimates produced by the battery-management system.

If the displayed percentage changes unusually quickly, first:

1. Use the original or approved charger.

2. Allow the battery to complete a normal charging cycle.

3. Restart the device.

4. Check for high-power applications or peripherals.

5. Update the operating system or firmware where applicable.

6. Contact technical support if the issue continues.

Do not continue using a battery that is swollen, damaged, abnormally hot or physically deformed.

Technical Support

31. Can I connect an external keyboard?

Yes.

A keyboard connects through:

• USB-A

• USB-C/OTG

• Bluetooth

• Docking or POGO accessories

Check the interface configuration of the exact tablet before selecting the keyboard.

32. How do I use USB OTG?

For models that support OTG:

1. Connect a compatible OTG adapter if required.

2. Connect the USB peripheral.

3. Select the appropriate USB mode if prompted by the operating system.

4. Open the file manager or relevant application.

Some high-power devices, such as external hard drives, may require their own power source.

Test compatibility with the actual peripheral before large-scale deployment.

33. How do I transfer files between a tablet and a computer?

Files move through:

• USB

• USB-C

• Network sharing

• Wi-Fi

• Cloud storage

• microSD/TF card

For Android USB transfer, make sure the USB connection mode is set to file transfer where required.

If the computer does not recognize the tablet, check:

1. USB cable

2. USB port

3. USB mode

4. Device driver

5. Operating-system permissions

34. How do I connect the tablet to a wired Ethernet network?

If the tablet has a built-in RJ45 port, connect the Ethernet cable directly.

For a model without RJ45, a compatible USB-to-Ethernet adapter or docking station may be used where supported.

Network settings depend on the customer's network and may use:

• DHCP

• Static IP

• Enterprise network configuration

A router or network gateway may still be required for Internet access.

35. How do I install Android applications?

Applications can be installed through the supported application store or through an approved installation package.

For enterprise projects, applications may also be:

• Pre-installed at the factory

• Distributed through MDM

• Installed through an enterprise app store

• Deployed through APK packages

Availability of Google services depends on the Android build and project configuration.

36. What should I do if the tablet freezes or stops responding?

First allow the current application a short time to respond.

If the device remains unresponsive:

1. Disconnect unnecessary peripherals.

2. Use the model-specific reset function if available.

3. If required, press and hold the power button according to the product manual.

4. Restart the device.

5. Check whether the issue occurs in one application or throughout the system.

Because reset procedures vary between models, refer to the specific product manual before using a hardware reset.

37. Why can't I hear sound from the headset?

Check:

• System volume

• Application volume

• Headset connection

• Bluetooth connection if applicable

• Audio-output selection

• Headset compatibility

Try a known working headset before concluding that the tablet audio interface is defective.

38. Is it normal for the tablet to become warm?

Some warmth during charging or heavy operation is normal because the processor, display, battery and communication modules generate heat.

However, stop using the device and contact technical support if you notice:

• Extreme or rapidly increasing heat

• Battery swelling

• Burning smell

• Smoke

• Enclosure deformation

• Repeated thermal shutdowns

Do not continue charging a visibly damaged battery.

39. Why do photos or videos show dark spots or shadows?

First inspect the camera lens.

Dust, fingerprints, protective film or contamination on the lens can cause blurred areas or dark spots.

Clean the lens with an appropriate soft cloth.

If the issue remains in the same location after cleaning, contact technical support and provide sample images.

Warranty & After-Sales Support

40. What should I do if I receive a defective product?

Contact CENAVA as soon as possible and provide:

• Product model

• Serial number

• Description of the problem

• Photos or video

• Operating conditions

• Relevant error messages

Our technical team will first diagnose the issue and determine whether troubleshooting, repair, parts replacement or product replacement is appropriate under the applicable warranty terms.

Do not dismantle the product unless instructed, because unauthorized repair can affect warranty coverage and environmental sealing.

41. What warranty does CENAVA provide?

The standard warranty is one year from delivery unless a different warranty term is stated in the quotation, contract or model-specific documentation.

Warranty normally covers eligible functional failures that are not caused by misuse, unauthorized modification, accidental damage or other excluded conditions.

Project-specific warranty extensions can be discussed with the sales team.

42. What after-sales support is available?

We provide different levels of technical support by project:

• Email support

• Telephone support

• Remote diagnostics

• Troubleshooting guidance

• Repair and maintenance

• Replacement parts

• Software and system-integration support

• On-site support for eligible projects

For unresolved hardware problems, the technical team will provide the appropriate repair or return procedure.

43. Do you provide SDK or API support?

We support integration of:

• Barcode scanners

• NFC

• RFID

• Fingerprint modules

• Serial interfaces

• Android applications

• Windows applications

Ask us about SDK availability for the exact hardware module and operating-system version before development begins.

44. Can CENAVA pre-install our software?

Yes, for applicable OEM/ODM projects.

Software services include:

• Application pre-installation

• OS configuration

• Boot logo

• Kiosk mode

• Device settings

• Enterprise configuration

• MDM enrollment

Define the requirements during project evaluation and validate them on samples before volume production.

How to Get the Right CENAVA Rugged Device

To recommend the correct model, provide the following information:

1. Required operating system

2. Screen size

3. Application software

4. IP requirement

5. Operating-temperature range

6. Required ports such as RJ45 or RS232

7. Barcode, NFC or RFID requirements

8. 4G/5G and GNSS requirements

9. Battery runtime or hot-swap requirement

10. Required certifications

11. Accessories and mounting requirements

12. Estimated order quantity

We then recommend an existing product platform or evaluate an OEM/ODM configuration for the project.