The OAS-CON-4B hooks up easily to any OAS Series LED Indicator Sign, offering total control of LED Sign in a compact size case that fits easily in the palm of the hand.  The four button provides the following operation modes:

1. ON - power up sign
2. OFF - power down sign
3. FLASH - built-in flash module lights on/off approx every 1.5 seconds
4. MOMENTARY -  powers up sign only while button is depress

Housed in a rugged enclosure that measures 2.5 x 1.5" x 1".  Easy 4 wire connection with a quick disconnect terminal block.