Motherboard published an interesting blog post which includes further details on the cost of StingRay phone surveillance equipment. StingRay is an IMSI-catcher (International Mobile Subscriber Identity) designed and commercialized by the Harris Corporation. At the time of the article, the cellular surveillance system was costing as much as $400,000 in the basic configuration, and its price varied with add-ons ordered by the agency. The use of the use of Stingray is raising a heated debate in the United States because devices like StingRay and other similar cellphone tracking solutions are being widely adopted by law enforcement agencies across the country.”]
Source: https://securityaffairs.co/wordpress/54299/digital-id/cost-stingray-surveillance.html