Home UL UL Subject 639:2013 UL Subject 639:2013$158.60 Original price was: $158.60.$79.00Current price is: $79.00. Standard for Intrusion-Detection Units (CSDS Proposal, 2/1/2013) Underwriters Laboratories , 02/01/2013 UL Subject 639:2013 quantity Add to cart Category: UL Description Standard By:Underwriters Laboratories , 02/01/2013 Published:02/01/2013 Related products UL Subject 83:1999 $244.01 Original price was: $244.01.$122.00Current price is: $122.00. Add to cart UL Subject 1670:1999 $159.67 Original price was: $159.67.$79.00Current price is: $79.00. Add to cart UL Subject 10:1999 $193.42 Original price was: $193.42.$96.00Current price is: $96.00. Add to cart UL 542:1999 $133.96 Original price was: $133.96.$66.00Current price is: $66.00. Add to cart UL Subject 1573:1999 $118.16 Original price was: $118.16.$59.00Current price is: $59.00. Add to cart UL Subject 142:1999 $178.40 Original price was: $178.40.$89.00Current price is: $89.00. Add to cart UL Subject 1686:1999 $119.03 Original price was: $119.03.$59.00Current price is: $59.00. Add to cart UL Subject 2329:1999 $120.39 Original price was: $120.39.$60.00Current price is: $60.00. Add to cart UL Subject 60730-2-4:1999 $200.80 Original price was: $200.80.$100.00Current price is: $100.00. Add to cart UL Subject 1063:1999 $297.76 Original price was: $297.76.$148.00Current price is: $148.00. Add to cart