And no, I do not recieve any click pay or anything. Just letting you know the play. Was advised that Japanese and US makers of such devices are INTENTIONALLY disabled to make them ineffective in discovering fissionable isotopes in our environment as a control feature to make people go back to sleep. This one is made in Germany. It's what the Universities are using because they trust it. Most US and Japo machines are owned by GE, etc., AS A PARENT COMPANY and GE makes NUCLEAR REACTORS. BE ADVISED.