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| Product Name | ChangLong ZCW2-75 Smart Temperature Patch | ChangLong ZCW4-75 Smart Temperature Patch |
| Product Price | $86.00 | $86.00 |
| Details | Details | |
| Model comparison | ||
| Color change | one-time | one-time |
| temperature range | Below 100 ℃ | Below 100 ℃ |
| number of temperature grids | 1 grid | 1 grid |
| Parameter comparison | ||
| Mode of discoloration | Irreversible | Irreversible |
| number of temperature grids | 1 grid | 1 grid |
| Measuring temperature | 75℃ | 75℃ |
| Dimensions | 30*26mm | 40*40mm |
| Temperature grid shape | rectangle | round |
| Encasement specifications | 16 pieces/sheet | 9 pieces/sheet |
| Color change | White → red → black | White → red → black |
