Frequently asked questions

MEGA CQ25R is a multi-function thermal system; Q Series models are thermal scopes; C Series models are thermal clip-ons; and M Series models are handheld thermal monoculars. Compare the current product pages for resolution, lens, field of view, weight, included accessories and available modes. Need help choosing? Contact our team with your intended use and budget.

The U.S. MEGA CQ25R supports handheld, helmet-mounted, clip-on and standalone scope configurations. The required mounts and adapters depend on your setup and selected package. Check the product page’s included-items list before ordering; one package does not necessarily include every mounting accessory.

No. Check the specifications for the exact model and version you are ordering. Rangefinder capability, maximum range and supported app features vary by model.

Included accessories vary by product and bundle. Check the listing before purchasing, or send our team the device model and details of the equipment you want to connect. Do not assume that adapters, thread sizes or mounts are interchangeable across the range.

Visit Where To Buy to find an authorized U.S. dealer. Contact the dealer directly to confirm demo availability, models on hand and appointment requirements.

Yes. You can order through zentronusa.com or an authorized U.S. dealer. For an order placed with a dealer, contact that dealer first for payment, order status and return questions.

“In Stock” means the selected variant is available and typically ships within 1–3 business days, unless the product page states otherwise. Backordered products are available to order and are expected to ship within 2–3 weeks after you place your order. After dispatch, allow an estimated 3–5 additional business days for standard delivery. Dispatch and delivery estimates are separate; holidays and carrier delays can affect timing. Expedited shipping, when available, shortens transit time only and does not shorten order processing or the backorder lead time. Check your selected model and color, and contact us before ordering if you have a firm deadline.

Available shipping options and charges are shown at checkout. Once your order ships, use the tracking information in your shipment confirmation. For help, email info@zentronusa.com with your order number.

Email info@zentronusa.com as soon as possible, preferably within 12 hours of ordering. Include your order number and requested change. Changes are not guaranteed once processing begins, and shipped orders cannot be canceled or rerouted. See our Return & Refund Policy.

Zentron USA fulfills thermal-optics orders to U.S. addresses only. If you are outside the United States, contact us with your country and the model you are interested in so we can help identify the appropriate regional sales contact.

Visit Become a Dealer to learn about the program and submit your business details. Our U.S. team will follow up on availability, requirements and next steps.

Use the official app links and resources on our Downloads page. Visit How-To Videos for setup walkthroughs. Always match manuals and firmware to your exact model and hardware version.

Turn on Wi-Fi on your Zentron device, connect your phone to the device’s Wi-Fi network, then open ZSYNC and follow the connection instructions. A “no internet” notice can be normal while connected directly to the device. Allow the permissions requested for the feature you are using, such as local network, nearby devices, Bluetooth or location. Additional Bluetooth setup is required for supported ZenTrace functions.

Confirm that your phone is connected to the correct device Wi-Fi network and remains connected even if it reports no internet. Check the app permissions, keep the phone close to the device, and restart the app and device. If it still fails, send support your device model, firmware version, phone model, operating-system version and a screenshot of the error.

ZenTrace combines a compatible device’s measured range and direction with your phone’s GPS to calculate and save a location in ZSYNC. Compatibility and available marker functions depend on the model and firmware. Calculated locations depend on the quality of the range, direction and phone-location data. See the ZenTrace guide and field demos for setup and supported models.

Check the free space in the device’s internal storage and on your phone. Confirm that ZSYNC has the required photo or file permissions and that the device connection remains active during transfer. Back up files before deleting recordings or formatting storage. Contact support if storage errors continue.

Check the battery level, battery seating and sleep or standby settings. If using external power, check that the power source and cable meet your model’s requirements. If the device repeatedly shuts down with a charged battery, contact support with the model and a description of when it happens.

Use only the update intended for your exact model and hardware version. Follow its power and battery requirements, download the complete file, and keep power stable throughout installation. Do not turn off the device or interrupt an update. If an update fails, contact support before attempting another firmware file.

Check your model’s manual for external-power support, the required voltage and the correct cable. External operation does not automatically mean that the device charges its battery internally. Use only the power and charging methods specified for your model.

Email info@zentronusa.com with the device model, serial number and a photo of the part you need. Our team can confirm compatibility, availability and ordering options.

Eligible 384-class and higher devices have a 5-year limited warranty; devices below 384-class have a 3-year limited warranty. Coverage starts from the original purchase date and requires an eligible authorized purchase. Accessories have separate coverage. See the full warranty terms.

For eligible warranty repairs, the commitment is 5 business days for 384-class and higher devices and 10 business days for lower-resolution devices, measured after Zentron USA receives the unit. If an eligible repair cannot be completed in that period, the policy provides for a replacement in equal or better condition. Shipping time is separate. See the warranty policy for conditions.

Start at Start an RMA or contact us with proof of purchase, model, serial number, a description of the issue and your contact details. Wait for approval and shipping instructions before sending a device. Use the service address provided with your RMA.

Eligible direct consumer purchases have a 30-day return window after delivery. Prior RMA approval is required. Standard returns must be new, unused, unmounted and complete in their original packaging; exclusions apply. Dealer, distributor and wholesale purchases follow their own sales terms. Read the Return & Refund Policy before shipping a return.

For eligible defects reported within 30 days of delivery, Zentron USA covers the applicable standard U.S. warranty shipping under the policy. After 30 days, the customer pays inbound shipping and Zentron USA covers standard return shipping for approved warranty work. Obtain RMA instructions before shipping.

For orders and general questions, email info@zentronusa.com. For technical assistance, visit Customer Service or email support@zentronusa.com. Call +1 (469) 498-1090. Our U.S. operation is based in Garland, Texas, in the Dallas area. Contact us before arranging a visit or sending equipment.