TT300 Smart Tire Tread Detector
– 137g ultra-portable- Pocket-sized, cable-free design
– Dual modes- Standalone or App-connected
– Rain & Dark Modes- Accurate in wet and low-light conditions
– Traffic-light indicator- Instant tread condition display
– Offline storage- Edit, export and print reports
– 0.1 mm laser precision- Accurate on irregular tread grooves
– TreadXApp – Auto-sync data and one-tap reports
UDIAG TT300 is a compact, 137g Class II laser tire tread depth tester for repair shops, tire stores, and inspection services. It delivers 0.1 mm accurate measurements in seconds and supports both standalone and Bluetooth App operation. With Rain Mode, Dark Mode, color-coded tread alerts, offline data storage, and the TreadX App, it enables fast, professional four-wheel tire inspections and printable reports.

Features
Dual Operation Modes
Dual operation modes: Standalone mode for instant on-device readings; Bluetooth App mode for data logging, tire position tagging, vehicle info input and printable inspection reports.
Multi-Scenario Measurement
Multi-scene test modes: Rain Mode for wet treads, Dark Mode for dim environments; auto/manual measurement confirmation, adjustable 2-5 tread grooves for irregular tires and multi-point detection support.
Offline Data Management
Full local offline data storage: Zero cloud data upload or personal information collection; functions include report editing, deletion, sharing, printing and local data import & export.
BLE 5.0 Wireless Connectivity
BLE 5.0 wireless transmission with OTA firmware upgrade and one-click device restart for convenient equipment maintenance.
Color-Coded Tread Wear Indicator
Color-coded tread depth warning indicator: Red (<1.6mm, immediate tire replacement), Yellow (1.6–3.0mm, wear warning), Green (>3.0mm, normal safe status).
Portable Laser Handheld Design
Portable laser handheld structure: 4-second fast startup, integrated combined power & measurement button, Type-C USB charging, matched yellow positioning support legs for vertical stable measurement.
Dedicated TreadX Mobile App
Exclusive Android-based TreadX App: Compatible with Android 8.0 and above with BLE 5.0; available for download from official app stores, requiring location permission to enable Bluetooth scanning.
Comprehensive Safety Protection
Comprehensive safety and maintenance design: Built-in troubleshooting for connection and measurement failures; microfiber lens cleaning requirement; Class II low-power laser with eye exposure warning and child safety restriction, plus complete battery protection specifications.
Advantages
- 137g ultra-portable- Pocket-sized, cable-free design
- Dual modes- Standalone or App-connected
- Rain & Dark Modes- Accurate in wet and low-light conditions
- Traffic-light indicator- Instant tread condition display
- Offline storage- Edit, export and print reports
- 0.1 mm laser precision- Accurate on irregular tread grooves
- TreadXApp – Auto-sync data and one-tap reports
Dimensions | 132mm*67mm*79mm |
Net Weight | 137g |
Working Temperature | -5℃ ~ 40℃ |
Startup Speed | 4S quick start |
Measurement Accuracy | 0.1mm |
Charging | USB 2.0 Type-C, 5V 0.5A |
Battery | 3.7V, 800mAh |
Communication | BLE 5.0+ wireless transmission |
Laser | 520nm±10nm, Class II |




