PrecautionsIf the Test Lamp lights, then release the Green and red light at the same time. Shows whether the batteryTo change the battery or replace the device.
Guidelines for Lamp Test, then release the green light and red light simultaneously. Indicates that the battery is low , replace the battery or replace equipment.
If let go of the Lamp precautions Test, the green light and red light, at the same time. To show that the battery running out to change the battery or change equipment