With external wired NTC temperature probe to achieve internal and external dual temperature measurement, suitable for more occasions Three intelligent safety protections, real-time monitoring of the status of the discharge tube, safe and reliable Built-in intelligent temperature-controlled fan switch and temperature-controlled speed design reduce fan noise and extend fan life Plug Type: US Plug,it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on.model: DL24Colour:Black+greenMaterial:plasticPackage Contents:1 * USB Tester1 * Power Adapter1 * Test line1 * Computer cable1 * Temperature probe transformerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.