* Ce approval
* Specification:
* Range: propylene glycol
    min. Div: -95 ~ 0°c
    accuracy: 0.1°c
    remark: +/- 0.20°c
* Range: ethylene glycol
    min. Div: -70 ~ 0°c
    accuracy: 0.1°c
    remark: +/- 0.20°c
* Range: battery
    min. Div: 1.000 ~ 1.510sg.
    accuracy: 0.01sg.
    remark: +/- 0.01sg.
* Range: cleaner
    min. Div: -72 ~ 0°c
    accuracy: 0.1°c
    remark: +/- 0.20°c