Replaces Allstar, Pulsar or Allister brand units model 9931-318 (9 dip switches with 3 position each: +,0,-)
1 Button single channel remote transmitter
318 MHZ Frequency gate or garage door opener
Nine (9) 3-positions (trinary) dip switch format
Also available in key-chain size
Compatible with receiver model 931R-318
