Product size: 13.5 * 5.5 * 19 cm color much money randomly

A: quality standard

1. Working voltage range: 1.3 v to 1.7 v

2. Travel time accuracy: in 1.5 v, average instantaneous day sent for 1.8 ~ 2.2 seconds/day

3. When the precision: positive and negative 5 minutes

Two: attention

1. Not to clock in the damp, high temperature, dust and corrosion gas place.

2. This product structure precision, avoid by all means is severe shock, vibration.

3. Clock need not when will take off the battery.

Use button cell, with alarm function.