... button card of different memory. DS1990,DS1991,DS1996,DS1994, OEM logo can be laser cutted. Different colors available. TM button card ... , adapt original Dallas Chip, Sealed by stainless steel. Completely compatible with 1990A-F5.2. Working Tempreture: -40 C to +80C3. Reading ... work well.5. Hardness Test. Deformation with 1.5mm-1mm, work well.6. Can be with logo.7. Plastic handle or plastic chain ...