Yadongxing temperature measuring paper is manually painted with paints of different temperatures on the window of the temperature measuring paper. When the temperature measuring paper is exposed to a high temperature environment, it will display different colors when it reaches the corresponding temperature point. DW-4 (60.70.80.120) temperature measuring paper has a temperature measuring range of 60°C, 70°C, 80°C, and 120°C. It is a Temperature Indicator Label with 4 windows, and a transparent protective film is attached to the surface of the temperature measuring paper. , It can protect the paint on the temperature measuring point of the temperature measuring paper from oil, water and dust, and maintain a long storage life.

| model | temperature range | Number of temperature grids | Sheets per sheet | Size of each piece |
| DW-4 (60.70.80.120) | 60 °C, 70 °C, 80 °C , 120 °C | 4 cells | 90 tablets | 12x40mm |
DW-4 (60.70.80.120) temperature measuring paper is suitable for electric railway transportation industry, testing some components or relatively dangerous Operating Environment, such as generators, transformers, switch switches, fuel tanks, rails, can monitor the temperature and prevent accidents .

DW-4 (60.70.80.120) temperature measuring paper display

Comparison chart of DW-4 (60.70.80.120) temperature measuring paper before and after overheating

DW-4 (60.70.80.120) temperature measuring paper with protective film details

Real shot of DW-4 (60.70.80.120) temperature measuring paper
Note: The above pictures are based on DW-4 (50.60.70.80) as an example. Yadongxing temperature measuring paper DW-4 can be combined at 50.55.60.65.70.75.80.85.120 degrees, such as 50.60.70.80 or 55.65. 75.85 combination etc. A sheet of 90 pieces, long in shape, each with four temperatures (can be customized).