HOOTER/ SIREN FOR EOT CRANES WITH FITTING ACCESSORIES FOR MOUNTING ON CRANES, SUPPLY VOLTAGE- 110V AC, SOUND FREQUENCY- 600- 800 HZ ( TWO TONES ), PROD. HOOTER/ SIREN FOR EOT CRANES WITH FITTING ACCESSORIES FOR MOUNTING ON CRANES, SUPPLY VOLTAGE- 110V AC, SOUND FREQUENCY- 600- 800 HZ ( TWO TONES ), PRODUCT WEIGHT SHOULD BE LESS THAN 1 KG, OUTPUT- 100- 110 DB AT 1 METER RANGE, AMBIENT TEMPERATURE OPERATION- 0- 50 DEGREE CELSIUS.