Advanced Model TT3 Series ULTRASONIC THICKNESS GAUGE TT300/300A TT310 TT320 TT340 Features: Advanced handheld ultrasonic thickness gauge Suitable for most metallic and non-metallic materials ultrasonic can go through Auto-calibration of zero point, correction of system error Display current thickness or minimum thickness (menu selectable) Upper-lower limits setting and sound alarm Memory of 500 stored values Two point calibration for high accuracy Display resolution 0.1mm/0.01mm selectable Display in mm or inch Large LCD display with adjustable backlight Low battery indicator TT300: Equipped with RS232 interface for communication with printer and PC with optional software. 5P Ф10 transducer for normal purpose and optional TSTU32 transducer for casting iron. TT300A: can be used with high frequency transducer for thickness testing of thin work piece, and auto-calibration is availabel TT310: Economical model with easy operation TT320: high-temperature model with range up to 300 ℃ TT340: equipped with TSTU32 transducer for casting iron leather jacket design Technical Specification TT300 TT300A TT310 TT320 TT340 Measuring range 1.2mm-225.0mm (steel) 0.75mm-225.0mm (steel) 1.2mm-225.0mm (steel) 1.2mm-225.0mm (steel) 5.0mm-80.0mm (steel high-temp) 1.2mm-225.0mm (steel) 5.0mm-40.0mm (casting iron) Tolerance ±1% H +0.1mm ±0.5% H +0.01mm ±1% H +0.1mm (H means the thickness of tested piece) Lower limits of steel pipes φ20mm x 3.0mm φ20mm x 3.0mm φ15mm x 2.0mm φ20mm x 3.0mm Display resolution 0. 1mm/0.01mm or 0.01/0.001inch 0. 1mmor 0.01inch Data output RS232 Output for printer or pc ---- Sound velocity 1000m/s~9999m/s Power supply 2pcs AA batteries (2pcs) 1.5V Battery life 100 hours without backlight Sound speed 1000m/s~9999m/s Unit scales mm/inch Dimensions 152mm×74mm×35mm Weight 370g 250g 370g Surface temperature -10℃~ +60℃ -10℃~ +300℃ -10℃~ +60℃ Dimensions 152mm×74mm×35mm Standard delivery Main unit Transducer 5PΦ10 Transducer ZW5P for TT320 Transducer TSTU32 for TT340 Leather jacket Couplant Batteries AA 1.5V Screwdriver Instruction manual TIME certificate Warranty card