功能

• This item is produced in our own factory in Japan and is handmade one by one.
• Compare and calibrate the thermometer regularly with the standard thermometer, and use it as the standard for various thermometers used in the field. Use it as a thermometer next to the standard thermometer of customers for measurement control.
• The double-tube thermometer consists of an outer tube, a capillary tube, and a scale plate. The capillary tube and the scale are sealed in a single glass tube. Since the scale does not disappear and the mercury thread is close, the reading accuracy is high and the product is suitable for precision measurement.
• Calibration certificate and traceability diagram are not included.