ESD Calculator is made of antistatic ABS material, it is dual power with AA battery and solar power.
1. Two way power: solar powered when light is sufficient, battery powered when light is insufficient.
2. Key rollover: key operations are stored in a buffer, nothing will be lost even during high speed input.
3. 10 + 2 digits: 10-digit mantissa +2-digit exponential display.
4. Dot matrix display: high resolution screen provides beautiful looking graphs every time.
5.Plastic keys: designed and engineered for eacy operation 6. Permanent anti-static property: Made from ESD material, surface resistance 10e5-10e8 ohm.