Large Color Screen with Backlight: Easy-to-read TFT screen with backlight for improved visibility and adjustable brightness for user comfort. Portable and user-friendly design: Compact size (222 x 80 x 46 mm) with comfortable buttons for easy operation and use . Advanced Humidity and Temperature Measurement: Accurate humidity and temperature readings (±2°C, ±3% RH) for precise environmental monitoring. Extensive data logging and analysis: 999 sets of data and graphing capabilities for in-depth analysis monitoring. Tc 8100 Air Quality Monitor, Multi-Channel PM2.5/10 Detection: Accurate measurement of PM2.5/10 particle size ensures comprehensive air quality analysis. (The color of the toolbox is random, no specified color is accepted) Color: As Shown Material: plastic Package Contents: 1 set * TC8100 multi-function gas detector Only the above package content, other products are not included. Note: Light reflection 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.