Warning

Potential for electric shock exists when handling connection cables while the transmitter is ON. Make all connections prior to powering on the unit. Turn the transmitter OFF before handling connection cables.

Warning

Voltage greater then 240 volts will damage equipment and could cause personal injury or death. Make all connections before turning on the transmitter. Follow standard procedures for reducing the voltage.

Receiver Battery Installation

The Receiver displays the battery level across the bottom of the start up screen when the unit is powered on.

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3M 2220M manual Receiver Battery Installation,  Warning