Roller scale product features:

1) Upper and lower limit settings, with calibration function; Alarm for exceeding or falling below the sound and light warning light (additional power supply is required for the warning light);

2) The sound can reach 40-50 decibels;

3) The light alarm can be selected from monochrome light alarm and three color light alarm. The three color light alarm is: red indicator light for exceeding, green indicator light for passing, and red indicator light for below;

4) The indicator light is constantly on; Separate control of sound and lighting, with two modes to choose from: working and not working