ST 171 Inhibitor Detector GSM 3G 4G GPS and Ultrasonic Devices
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ST 171 Inhibitor Detector GSM 3G 4G GPS and Ultrasonic Devices

ST-171 Detector of jammers and ultrasonic devices. Easily locate 2G, 3G, 4G, GPS frequency jammers and ultrasonic audio recorders jammers. Protect your business and uncover criminals!

€2,395.00 €2,495.00 - €100.00

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ST 171 Inhibitor Detector GSM 3G 4G GPS and Ultrasonic Devices
ST 171 Inhibitor Detector GSM 3G 4G GPS and Ultrasonic Devices

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Would you like to buy the new frequency detector ST-171?

We present the ST-171 frequency jammer and audio jammer detector . It incorporates the latest technology on the market. It even detects the latest counterespionage devices that are used to override voice recorders using ultrasonic frequencies. Protect your business and track down criminals!

How does the ST-171 jammer detector work?

The ST-171 frequency jammer detector is a small, acoustic, 2G, 3G, 4G and GPS jammer that weighs only 60 grams. It offers great possibilities and is extremely effective and easy to use. Configuration, operation of the detection process and display of the signal is done via the Bluetooth connection to a Smartphone with a Bluetooth connection to a Smartphone with Android . All records are saved together with the location. The Acoustic Jamming Detector ST-171 has no memory and all events are recorded in the Smartphone memory.

The ST-171 Jammer Detector has an autonomy of at least two hours and has a jammer detection range of 10 meters approximately and 5 meters for ultrasonic audio jammers.

The Jammer Detector ST-171 is a useful device especially for fleet owners, where the ease of jamming the GPS signal can contribute to the theft of fuel, goods or the vehicle itself.

Why do I need to buy a jammer detector and audio recorder jammer?

Many criminals and criminal organizations use jammers to block alarm signals from commercial establishments or to prevent people from using their mobile phones to alert the police. There are a multitude of examples. Let's look at three:

Example 1: Preventing fuel theft from trucks. Some criminals take advantage to steal fuel when a truck is stopped at a service area and the driver is sleeping. Criminals use frequency jammers so that the driver cannot call the police if detected. The ST-171 will alert you when a jammer is nearby.

Example 2: Detecting clandestine garages. Other criminals use jammers in garages to store stolen cars and block the GPS signal so they can't be located. With the ST-171 you can detect these clandestine garages.

Example 3: Detect secure environments. Some people use ultrasonic devices to avoid having their conversations recorded by hiding the ultrasonic sensors in different places such as ceilings, walls or briefcases. The ST-171 detects these devices easily. This way you will know if your conversation partner uses ultrasonic devices to avoid being recorded.

The frequency jammers are devices that are totally prohibited in the EU and their use is restricted to Defence and National Security. In this article we explain the penalties involved.

With the ST-171 you will be able to locate and detect the prohibited use of these devices.

Areas of application:

  • Visiting a premises or office to discreetly detect the presence of jammers or audio recorder blockers.
  • Security filters to detect the presence of jammers in vehicles. In this case, the ST-171 must be installed in a security booth or any other place close to the barrier.
  • Detection of GSM or GPS jammers in cars moving along a road, street, etc.
  • Location of GPS jammers, deployed in a stolen car. The car can be inside the garage or in an open space.

Where to buy ST-171 jammer detector and voice recorder jammers?

You can buy the ST-171 jammer detector directly on the website or in our physical store. is the official distributor of the brand in Spain and Portugal so you will always get the best price and an official guarantee for 2 years. Direct sale, without intermediaries.

Features of the ST-171 frequency jammer and voice recorder jammer detector

Frequency range, MHz901-907, 925-975, 1570-1580, 1795-1820
Dynamic range, dB65
InterfaceBluetooth, USB
Internal power supply3.6 V lithium-ion battery
Current consumption, mA
no more than 450
Protection ratingIP54
Operating temperature range, С-30 / 30
Dimensions, mm83x52x15
Weight, kg0,06

Package contains

  • Receiver module ST-171R;
  • USB charger;
  • USB cable;
  • USB flash drive with software.
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