K18S Multi-Function RF Detector – Scan for Hidden Cameras & Wireless Devices

The K18S RF Bug Detector is a powerful, portable device designed to help you sweep any space for hidden cameras, wireless transmitters, and covert surveillance equipment. Whether you're staying in a hotel room, an Airbnb, a meeting room, or any unfamiliar space, the K18S gives you the confidence of knowing your surroundings. Built from durable ABS and metal, this compact unit packs serious detection capability into a pocket-sized form factor.

Key Features

Wide RF Frequency Coverage: Detects RF signals from 1 MHz to 6.5 GHz — covering GSM, WIFI, Bluetooth, FM, VHF, UHF, and 900/1200/2400 MHz wireless audio/video transmission frequencies.
Built-In LED Lens Finder: Super-bright red LED helps locate all types of surveillance cameras — pinhole cameras, button cameras, and smartphone cameras — by revealing lens reflection.
Dual Detection Modes: Switch between buzzer mode (audible alert) and vibration mode (silent alert with optional headphone output) for discreet scanning.
Magnetic Field Detection: Includes a GS probe for strong magnetic field detection, ideal for identifying hidden magnetic recording devices.
10-Level Signal Strength Indicator: LED bar display shows signal intensity from low to high, so you can zero in on the exact location of a device.
Adjustable Sensitivity: Detection sensitivity of ≤0.03 m at the main frequency band; working range of 0.1–5 meters.
Rechargeable Battery: 1000 mAh built-in battery provides up to 4–5 hours of continuous use on a single charge.
Compact & Portable: Measures 102 × 55 × 21 mm and weighs just 95 g — easy to carry anywhere.

Technical Specifications

Model	K18S
Material	ABS + Metal
Frequency Range	1 MHz – 6.5 GHz
Working Range	0.1 – 5 m
Detection Sensitivity	≤0.03 m (main frequency band)
Alarm Mode	Sound & Vibration
Working Voltage	3.7 V
Battery Capacity	1000 mAh
Working Time	4–5 hours
Dimensions	102 × 55 × 21 mm
Weight	95 g
Plug Type	US Plug / EU Plug (Optional)

What's in the Box

1 × K18S RF Detector
1 × RF Antenna
1 × GS Probe for Magnetic Field Detection
1 × US Plug / EU Plug (Optional)
1 × User's Manual (English)

Frequently Asked Questions

Q: What types of devices can the K18S RF Detector find?

A: The K18S RF Detector is designed to locate hidden cameras (pinhole, button, and smartphone-style), wireless audio/video transmitters, and other covert RF-emitting devices. It covers a broad frequency range of 1 MHz to 6.5 GHz, including GSM, WiFi, Bluetooth, FM, VHF, and UHF signals, making it effective across a wide variety of surveillance equipment types.

Q: How do I use the lens detection mode on the K18S?

A: To use the lens detection mode, activate the built-in super-bright red LED and look through the device's viewfinder while slowly scanning the room. Camera lenses reflect the red light distinctly, making them visible even when they are camouflaged or hidden inside everyday objects.

Q: How long does the battery last, and can I use the K18S silently?

A: The K18S features a 1000 mAh rechargeable battery that provides 4–5 hours of continuous use. Yes, you can use it silently — simply switch to vibration mode or plug in headphones. In this mode, the detector alerts you to RF signals without making any audible sound, which is ideal for discreet scanning in public spaces.

Q: What is the difference between the US Plug and EU Plug options?

A: The K18S is available with either a US-standard plug or a EU-standard plug for charging. Please select the option that matches your region's power outlets at the time of purchase. Both versions include the same detector unit and accessories.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.