RayHunter IMSI Catcher / Stingray Detector – Moxee K779HSDL Hotspot – Professionally Refurbished & Pre-Installed – 4G LTE Cellular Threat Detection Device

Used — Professionally Refurbished by STS Technologies LLC

This listing is for a Moxee K779HSDL 4G LTE hotspot professionally refurbished and pre-installed with the latest stable version of RayHunter — the open-source cellular surveillance detection tool used to identify IMSI catchers, Stingrays, forced downgrades, and abnormal tower behavior.

Each unit comes from bulk enterprise liquidation and may show light cosmetic wear from prior use. Every device goes through our full refurbishment and verification process:

• Hardware inspection

• Battery and charging test

• Wi-Fi and USB tethering validation

• Modem / IMEI health check

• Web interface reset

• Fresh RayHunter installation and functional test

Only devices that pass 100% of our checks are shipped.

🔍 Why People Use RayHunter

1. To Detect Illegal or Unwanted Cellular Surveillance

The Problem:

Cell-site simulators,often referred to as Stingrays or IMSI catchers—can force your device to connect and quietly collect identifiers from every phone nearby. These tools have been used by agencies such as ICE and other law-enforcement groups, sometimes without public notice or proper oversight.

How RayHunter Helps:

RayHunter monitors LTE control-plane signaling and alerts you when a potential simulator is present. This gives you a chance to protect yourself, power down devices, use shielding (Faraday bags), or document the incident for legal or research purposes.

2. To Reveal Secret or Warrantless Surveillance Activity

The Problem:

Some agencies have historically deployed Stingrays without warrants and without disclosing their use, even to courts, attorneys, or the public. These devices are often used before raids or sweeps, and the communities affected typically have no way to detect them.

How RayHunter Helps:

RayHunter acts as an independent early-warning system. When suspicious activity is detected, users can document it or share the data with organizations like the Electronic Frontier Foundation (EFF). This contributes to transparency, community awareness, and legal accountability.

3. To Protect Against Criminals and Foreign Actors

The Problem:

It’s not only government agencies that use this technology. Criminal groups and foreign intelligence actors have deployed cellular simulators to track individuals, harvest identifiers, or initiate spoofed messages to trick victims into fraudulent transactions.

How RayHunter Helps:

RayHunter alerts you to the presence of any cell-site simulator, regardless of who controls it. This is vital for journalists, security professionals, business travelers, activists, or anyone who may be targeted for identity theft, tracking, or espionage.

4. To Hold Institutions Accountable

The Problem:

When surveillance technology is used without transparency or proper oversight, it disproportionately impacts vulnerable populations and erodes civil liberties. Communities often have no way to know when these tools are deployed around them.

How RayHunter Helps:

By making previously invisible surveillance visible, RayHunter gives ordinary people, researchers, and advocates the ability to monitor misuse, challenge improper deployment, and ensure that surveillance practices follow the law.

In Short

RayHunter is used because it provides visibility into a powerful, silent form of digital surveillance that can threaten privacy, free speech, and due process. It gives people a way to understand what is happening around them—and to protect themselves and their communities.

🛰️ What RayHunter Detects

RayHunter continuously monitors LTE control-plane signaling and alerts you to:

• IMSI catchers

• Cell-site simulators (“Stingrays”)

• Forced 2G/3G downgrades

• Rogue or abnormal tower behavior

• Suspicious mobility events

• Potential interception activity

Visual Indicators:

This device doesn't have any visual indicators. You must visit the built in web page at 192.168.1.1:8080 to see the logs.

Access the full RayHunter dashboard through the built-in web interface for logs, analytics, and advanced settings.

✨ Key Features

• Fully supported in RayHunter (supported since v0.6.0)

• LTE bands: 2 / 4 / 5 / 12 / 13 / 25 / 26 / 41 / 66 / 71

• Compact hotspot form factor

• Wi-Fi (2.4GHz)

• USB-tether capable

• MicroUSB charging

• Works with any carrier SIM (no active service required for detection)

Everything is minimally cleaned, fully tested, and securely packaged.

Note: This means that there is no guarantee on receiving a sim card.
Get one from your carrier ideally. Otherwise Walmart and Amazon have basically any sim card you could need for $5 or less. Refunds will not be accepted on the basis of a sim card being missing, not working, etc.

Note: Due to the nature of how we procure these devices from multiple vendors and resellers, we can not make any guarantee based on the availability of sim cards or the quality / life of the battery. You're buying a complete Rayhunter device with the items as listed. If something is missing that you think you need, be sure to get that separately.

Note: If you want a more premium device, look our New In Box Rayhunter or our Open Box Ray Hunter listings.

🎁 What’s Included

• Moxee K779HSDL Hotspot

• Battery

• Back cover

• MicroUSB charging cable (if available)

• Charging brick (if available)

• SIM card (inactive, based on availability)

Plus STS-exclusive extras:

• 10% OFF coupon for your next STS order

• Two sheets of STS & RayHunter-themed stickers (thermal-printed, matte)

❤️ We Donate 10% of Profits to the EFF

Every RayHunter device sold helps defend digital rights.

We donate 10% of all profits to the Electronic Frontier Foundation (EFF) to support privacy advocacy, open-source security research, and anti-surveillance legal action.

📌 Notes

• A SIM card is required for detection, but does not need to be active.

• If you intend to use the hotspot for internet, message us for compatibility details.

• Devices are fully tested, cleaned, and verified before shipping.

• You may request the latest available RayHunter build.

⚠️ Important Software Disclaimer

This device is based on the RayHunter open-source project created by the Electronic Frontier Foundation (EFF).

STS Technologies LLC / STS Collective is not affiliated with the EFF, and we do not modify, own, or claim rights to the RayHunter software.

Our role is simply to provide a professionally pre-configured, fully tested hardware device for users who want access to RayHunter but may not have the technical skill to install it themselves.

The RayHunter software itself remains free and publicly available.

⚖️ Legal Notice

This device is intended for research, educational, and personal privacy-protection purposes only.

By purchasing or using this device, the user agrees to:

• Comply with all local, state, and federal laws

• Use the device responsibly and ethically

• Understand that this device does not guarantee protection from all cellular threats

• Accept that the seller cannot be held responsible for misuse or misinterpretation of the data the device provides

No warranties—express or implied—are made regarding performance, accuracy, or legality of use.

RayHunter Software © Electronic Frontier Foundation