ACI RTDs

ACI RTDs (Resistance Temperature Detectors), manufactured by Automation Components, Inc., are designed to deliver precise and repeatable temperature measurement across industrial, commercial, and building automation systems. RTDs are widely regarded as one of the most accurate temperature sensing technologies available, making them ideal for applications where consistency, stability, and long-term reliability are critical.

Built around precision resistance elements, ACI RTDs provide accurate temperature readings with minimal drift over time. Their rugged construction allows dependable operation in a wide range of environments, from indoor HVAC systems to outdoor refrigeration units and industrial process equipment. These sensors are engineered to withstand environmental exposure while maintaining measurement integrity throughout extended service life. ACI RTDs are designed with both performance and ease of installation in mind. Their straightforward design allows for efficient field installation while still delivering high-level sensing performance. With options suited for diverse mounting methods, temperature ranges, and control system requirements, ACI RTDs integrate seamlessly into modern automation and monitoring systems.

Found 1826 items
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Found 1826 items
Manufacturer
ACI (1826)
Component
RTD (1826)
(Instrument-Sensor) Type
1.8K Ohm (1)
1K Ohm (86)
1K Ohm Balco RTD-Duct (2)
1K Ohm Balco RTD-Probe Only (1)
1K Ohm Balco RTD-Room (R2) (1)
1K Ohm-Connection Head Probe (3)
1K Ohm-Duct (1)
1K Ohm-Flexible Cable Averaging (2)
1K Ohm-Immersion (13)
1K Ohm-Probe Only (2)
(Instrument-Sensor) Composition
Nickel (127)
Platinum (413)
Stainless Steel (14)
(Instrument-Sensor) Mounting
Duct (332)
Immersion (498)
Outside Air (59)
Room (25)
Wall Plate (21)
Normally In Stock
ACI 124480 A/100-3W-PO-4"-EXPL Probe,3 Wire,100 Ohm RTD
Free U.S Ground shipping
$61.02
$50.85
Normally In Stock
ACI 125214 A/1K-LTS-30' Freezer RTD
Free U.S Ground shipping
$147.42
$122.85
Normally In Stock
ACI 142483 A/1K-3W-PM 3 Wire,1K Ohm RTD
Free U.S Ground shipping
$30.78
$25.65
Normally In Stock
ACI 139344 A/100-3W-O-SUN 3 Wire,100 Ohm Outside Air RTD
Free U.S Ground shipping
$289.98
$241.65
Normally In Stock
ACI 130842 A/TT1K-O-4-4X-POTTED Transmitter,1K Ohm Outside Air RTD
Free U.S Ground shipping
$150.66
$125.55
Normally In Stock
ACI 124215 A/100-3W-I-2.5"-PB 3 Wire,100 Ohm Immersion RTD
Free U.S Ground shipping
$54.54
$45.45
Normally In Stock
ACI 125216 A/1K-3W-O-EH 3 Wire,1K Ohm Outside Air RTD
Free U.S Ground shipping
$52.92
$44.10
Normally In Stock
ACI 120048 A/100-3W-PO-4" Probe,3 Wire,100 Ohm RTD
Free U.S Ground shipping
$26.46
$22.05
Normally In Stock
ACI 114893 A/1K-NI-S-GD RTD
Free U.S Ground shipping
$37.26
$31.05
Normally In Stock
ACI 119995 A/100-3W-BP-20'-CL2P Bullet Probe,3 Wire,100 Ohm RTD
Free U.S Ground shipping
$53.46
$44.55
Normally In Stock
ACI 144138 A/100-2W-R2 2 Wire,100 Ohm Room RTD
Free U.S Ground shipping
$29.16
$24.30
Normally In Stock
ACI 144154 A/1K-2W-R 2 Wire,1K Ohm Room RTD
Free U.S Ground shipping
$29.16
$24.30
Normally In Stock
ACI 136812 A/TTM100-IM-2.5"-4-4X Transmitter,100 Ohm Immersion RTD
Free U.S Ground shipping
$217.08
$180.90
Normally In Stock
ACI 125215 A/1K-LTS-6' Freezer RTD
Free U.S Ground shipping
$96.12
$80.10
Normally In Stock
ACI 119962 A/100-2W-PO-2" Probe,2 Wire,100 Ohm RTD
Free U.S Ground shipping
$26.46
$22.05
Normally In Stock
ACI 141078 A/TT100-I-4"-4-4X-POTTED 100 Ohm Immersion RTD
Free U.S Ground shipping
$177.12
$147.60
Normally In Stock
ACI 147088 A/TTM1K-RA-18"-4-PB Probe,Transmitter,1K Ohm RTD
Free U.S Ground shipping
$353.16
$294.30
Normally In Stock
ACI 132852 Platinum RTD Probe Only
Free U.S Ground shipping
$36.72
$30.60
Normally In Stock
ACI 142076 A/1K-LTS-4X-6' Freezer RTD
Free U.S Ground shipping
$123.12
$102.60
Normally In Stock
ACI 145092 A/TUC2-1K NI-0028
Free U.S Ground shipping
$214.38
$178.65
Normally In Stock
ACI 147310 A/1K-2W-R2S-A10-C5 2 Wire,1K Ohm Room RTD
Free U.S Ground shipping
$40.50
$33.75
Normally In Stock
ACI 149005 Platinum RTD Strap
Free U.S Ground shipping
$49.68
$41.40
Normally In Stock
ACI 119937 A/100-2W-BP Bullet Probe,2 Wire,100 Ohm RTD
Free U.S Ground shipping
$26.46
$22.05
Normally In Stock
ACI 119965 A/100-2W-PO-6" Probe,2 Wire,100 Ohm RTD
Free U.S Ground shipping
$21.60
$18.00
Normally In Stock
ACI 119569 A/1K-3W-RA-18"-GD Probe,3 Wire,1K Ohm RTD
Free U.S Ground shipping
$173.34
$144.45
Normally In Stock
ACI 118434 A/TT100-O-4-4X 100 Ohm Outside Air RTD
Free U.S Ground shipping
$139.32
$116.10
Normally In Stock
ACI 119452 A/100-3W-D-12"-GD 3 Wire,100 Ohm Duct RTD
Free U.S Ground shipping
$30.24
$25.20
Normally In Stock
ACI 118664 A/TT1K-SP-4 Wall Plate RTD
Free U.S Ground shipping
$112.32
$93.60
Normally In Stock
ACI 118665 A/TT1K-LTS-4-4X-6' Freezer,1K Ohm RTD
Free U.S Ground shipping
$232.20
$193.50
Normally In Stock
ACI 120261 A/1K-2W-BBS 2 Wire,1K Ohm RTD
Free U.S Ground shipping
$64.26
$53.55
Normally In Stock
ACI 120530 A/1K-NI-PO-8" Probe,1K Ohm RTD
Free U.S Ground shipping
$28.62
$23.85
Normally In Stock
ACI 123332 A/BALCO-A-12'-GD Copper Averaging,1K Ohm RTD
Free U.S Ground shipping
$237.06
$197.55
Normally In Stock
ACI 120283 A/1K-2W-D-8"-PB 2 Wire,1K Ohm RTD
Free U.S Ground shipping
$29.70
$24.75
Normally In Stock
ACI 124200 A/1K-2W-I-4"-PB 2 Wire,1K Ohm Immersion RTD
Free U.S Ground shipping
$55.62
$46.35
Normally In Stock
ACI 120300 A/1K-2W-I-4"-BB 2 Wire,1K Ohm Immersion RTD
Free U.S Ground shipping
$65.88
$54.90
Normally In Stock
ACI 120411 A/1K-3W-HT-I-4"-GD 3 Wire,1K Ohm Immersion RTD
Free U.S Ground shipping
$147.42
$122.85
Normally In Stock
ACI 118640 A/TT1K-O-4-4X Outside Air RTD
Free U.S Ground shipping
$136.08
$113.40
Normally In Stock
ACI 125209 A/1K-NI-O-EH Outside Air RTD
Free U.S Ground shipping
$54.54
$45.45
Normally In Stock
ACI 126690 A/1K-2W-PO-6" Probe,2 Wire,1K Ohm RTD
Free U.S Ground shipping
$26.46
$22.05
Normally In Stock
ACI 136990 A/TUC2-1K-NI-0011
Free U.S Ground shipping
$230.04
$191.70
Normally In Stock
ACI 134714 A/1K-2W-O-SUN 2 Wire,1K Ohm Outside Air RTD
Free U.S Ground shipping
$297.00
$247.50
Normally In Stock
ACI 135506 A/100-3W-INW-2.5"-4X 3 Wire,100 Ohm Immersion RTD
Free U.S Ground shipping
$55.62
$46.35
Normally In Stock
ACI 140457 A/1K-3W-HT-INW-6"-GD Immersion RTD
Free U.S Ground shipping
$124.20
$103.50
Normally In Stock
ACI 144158 A/BALCO-R
Free U.S Ground shipping
$37.26
$31.05
Normally In Stock
ACI 144159 A/BALCO-R2
Free U.S Ground shipping
$38.34
$31.95
Normally In Stock
ACI 144173 A/TTM1K-HT-D-8"-4-BB Duct RTD
Free U.S Ground shipping
$298.08
$248.40
Normally In Stock
ACI 144176 A/TTM1K-LTS-4-GD-30' Freezer,1K Ohm RTD
Free U.S Ground shipping
$244.08
$203.40
Normally In Stock
ACI 144189 A/100-2W-IM-2.5"-PB 2 Wire,100 Ohm Immersion RTD
Free U.S Ground shipping
$55.62
$46.35

FAQs

Q: What is an RTD sensor used for?
RTDs are used to measure temperature accurately by detecting changes in electrical resistance, commonly in industrial processes, HVAC systems, and building automation applications.

Q: Why are RTDs considered highly accurate?
RTDs offer excellent repeatability and long-term stability with minimal signal drift, making them more accurate than many other temperature sensing technologies in standard operating ranges.

Q: What environments can ACI RTDs be used in?
ACI RTDs are suitable for industrial equipment, HVAC systems, refrigeration units, outdoor installations, and commercial building automation environments.

Q: Are ACI RTDs easy to install?
Yes, ACI RTDs are designed for straightforward installation, allowing technicians to integrate them into existing systems efficiently.

Q: How do RTDs compare to thermocouples?
RTDs generally provide higher accuracy and stability over time, while thermocouples are better suited for extremely high-temperature applications.

Why Buy ACI RTDs from RSP Supply

RSP Supply offers a dependable selection of ACI RTDs designed for accurate temperature measurement and long-term reliability. Customers rely on RSP Supply for access to trusted ACI sensing solutions that integrate easily into industrial and building automation systems while supporting consistent performance and system efficiency.