RayHunter IMSI Catcher Detector – Kajeet RC400LX 4G LTE Hotspot – Professionally Refurbished & Pre-Installed

Before You Order

  • Condition: Professionally refurbished Kajeet RC400L(X); inspected, flashed and tested.
  • Included: Hotspot, battery and back cover. USB-A to USB-C cable, power adapter, carry case and inactive SIM are included only when available.
  • Before use: USB-C charging and a SIM are required; no active plan is required for detection. Battery life is not guaranteed.

Detection scope

RayHunter analyzes cellular signaling for suspicious behavior associated with possible cell-site simulators. Alerts require investigation: false positives are possible, and no alert does not establish that an area is free of surveillance. Detection does not prevent tracking or protect nearby phones.

Firmware and use

This hotspot is supplied with RayHunter installed and tested. Review the firmware option selected before ordering. RayHunter is an open-source project from the Electronic Frontier Foundation (EFF); STS Collective supplies the configured hardware and is not affiliated with EFF.

Setup and compatibility

Install a compatible SIM and charge the device before use. A paid service plan is not required for RayHunter detection; using the device as an internet hotspot requires compatible cellular service. Check the included-items list above and supply any accessories marked as excluded or available only when in stock.

Use the local RayHunter web dashboard to review logs and settings. Cellular compatibility depends on the hardware and supported network bands; ask us before ordering if you are unsure about your location.

❤️ Supporting Digital Rights

STS Technologies donates 10% of profits from RayHunter devices to the Electronic Frontier Foundation (EFF) to support privacy, security research, and anti-surveillance advocacy.

Join EFF!

Support and returns

Contact us for setup help, firmware questions or return instructions. Returns are accepted within 30 days of delivery. Return shipping is covered only for defective items. Refund returns and order cancellations have a minimum 3% fee; the restocking fee is waived when you choose a replacement. See the store return policy for details.

Setup guides and downloads

Download your free PDF guide for setup, power requirements, troubleshooting and documentation links. Save a copy for offline reference.

Project documentation

Use the instructions for your exact hardware and installed firmware version. Setup help: support@stscollective.com.

$49.99
$49.99
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