A/TT1K-D-4-4-EXPL | 137764. Transmitter w/ 1,000 Ohm RTD, Hazardous, Duct, 4", 4 $622.20 SKU: A/TT1K-D-4-4-EXPL MANUFACTURER: Automation Components Inc. Parent Item Parent Item - Additional Cost Has Item Option Quantity -+ If you add this item, you're only $178 away from free shipping! Add to Cart Add to Cart Current Stock: Please contact sales Details A/TT1K-D-4-4-EXPL | 137764. Transmitter w/ 1,000 Ohm RTD, Hazardous, Duct, 4", 4-20mA Output Documentation Data Sheet DetailsDocumentationBackA/TT1K-D-4-4-EXPL | 137764. Transmitter w/ 1,000 Ohm RTD, Hazardous, Duct, 4", 4-20mA OutputBack Data Sheet