The ECHO 7 series is available in 4 models ECHO 7 Hand-Held Digital Ultrasonic thickness gage with 3.5" Sunlight Readable Color Display for thickness only including: Class 1, Class 2 and Class 3 Measurement, Plastic Carrying Case, 2 Oz. bottle of couplant (C-02G), Re-Chargeable Li. Ion batteries, a Transducer up to 10 Mhz, lemo to microdot cable, Charger adapter with usb cable and data xl interface program