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Safety Equipment and GearAir QualityAlarm SystemsAll Home SecurityAll Tool SetsBathroom Cabinets & FixturesBathroom HardwareBathroom PlumbingBreakers, Distributors, and Load CentersCar Emergency SuppliesCarbon Monoxide AlarmsDimmers, Switches, and Wall PlatesElectrical ToolsEmergency SuppliesFire SafetyFlashlightsHand ToolsHome SafetyHVAC Ducting and VentilationKiddeLight BulbsMechanics ToolsPaint Supplies & ToolsPersonal PreparednessPersonal Protective EquipmentPipes, Fittings & AccessoriesPower Tool AccessoriesSafety DetectorsSealants, Fillers and AdhesivesStorm & Flood PrepTestersTool Equipment & StorageWildfire Prep
Duct Detector(34)
Uses item details. Price when purchased online
Elitech ILD-100H HVAC Refrigerant Leak Detector Heated Diode Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder $129.99
Sponsored
$12999
current price $129.99Elitech ILD-100H HVAC Refrigerant Leak Detector Heated Diode Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder
25 out of 5 Stars. 2 reviews
System Sensor D4120 Innovair Flex 4-Wire Duct Detector Sensor $196.73
$19673
current price $196.73System Sensor D4120 Innovair Flex 4-Wire Duct Detector Sensor
Edwards Signaling Duct Detector,4-Wire SD-SJ $151.58
$15158
current price $151.58Edwards Signaling Duct Detector,4-Wire SD-SJ
Edwards Signaling Duct Detector,2-Wire SD-2W $231.90
$23190
current price $231.90Edwards Signaling Duct Detector,2-Wire SD-2W
0-1000PPM HVAC Leak Detector Leak Tester Leak Detector AC Sniffer with Light & Alarm $37.00
$3700
current price $37.000-1000PPM HVAC Leak Detector Leak Tester Leak Detector AC Sniffer with Light & Alarm
0-1000PPM HVAC Leak Detector Leak Tester AC Sniffer with Light & Alarm Leak Detector $37.45
$3745
current price $37.450-1000PPM HVAC Leak Detector Leak Tester AC Sniffer with Light & Alarm Leak Detector
Reduced price 5 In1 Multifunctional Handheld Metal Detector Wall Detector Stud Detector Scanner Portable Wire Duct Power Scanner For Detecting Yellow From $23.75
From$2375
5 In1 Multifunctional Handheld Metal Detector Wall Detector Stud Detector Scanner Portable Wire Duct Power Scanner For Detecting Yellow
YongCo Leak Detector CFCs HCFCs Tester with Alarm Leak Tester HVAC Leak Detector
YongCo Leak Detector CFCs HCFCs Tester with Alarm Leak Tester HVAC Leak Detector
HVAC Leak Detector with Sound & Light Alarm Halogen Gas Tester HVAC AC Sniffer 6s Detec $27.50
$2750
current price $27.50HVAC Leak Detector with Sound & Light Alarm Halogen Gas Tester HVAC AC Sniffer 6s Detec
Elitech Infrared Refrigerant Leak Detector HVAC Halogen Gas AC Sniffer
Elitech Infrared Refrigerant Leak Detector HVAC Halogen Gas AC Sniffer
Portable High Sensitivity Leak Detector With Audible Visual Alerts for HVAC Automotive Refrigerants Systems $30.65
$3065
current price $30.65Portable High Sensitivity Leak Detector With Audible Visual Alerts for HVAC Automotive Refrigerants Systems
0-1000PPM HVAC Leak Detector Leak Tester Leak Detector AC Sniffer with Light & Alarm $37.43
$3743
current price $37.430-1000PPM HVAC Leak Detector Leak Tester Leak Detector AC Sniffer with Light & Alarm
Clearance Tizuqe Leak Detector CFCs HCFCs Gas Tester with Alarm Halogen Leak Tester HVAC Leak Detector Was $37.78
Tizuqe Leak Detector CFCs HCFCs Gas Tester with Alarm Halogen Leak Tester HVAC Leak Detector
Vintoro Portable 4-in-1 ABS Detector, Modern Black Detector, For Home Apartment Hotel $22.00
$2200
current price $22.00Vintoro Portable 4-in-1 ABS Detector, Modern Black Detector, For Home Apartment Hotel
Suodoka Magnetic Stud Finder Wall Scanner Stud Detection Suction Screw Metal Wire Cable Duct Tester Dark Blue From $10.19
4 options
Available in additional 4 optionsFrom$1019
Suodoka Magnetic Stud Finder Wall Scanner Stud Detection Suction Screw Metal Wire Cable Duct Tester Dark Blue
Clearance Nsxcdh Halogen Refrigerant Leak Detector HVAC AC Leak Sniffer Sensitive Adjustable Audible Visual Alarm Service Tool $13.99 Was $16.99
Now$1399
current price Now $13.99, Was $16.99$16.99
Nsxcdh Halogen Refrigerant Leak Detector HVAC AC Leak Sniffer Sensitive Adjustable Audible Visual Alarm Service Tool
11 out of 5 Stars. 1 reviews
Clearance Wire & Pipe Detector, Wall Safety Scanner, High Sensitivity Power Line Finder, LED and Sound Alert Tool, Portable Detector to Locate Live AC Wires and Metal Pipes Inside Walls,Black $14.39
$1439
current price $14.39Wire & Pipe Detector, Wall Safety Scanner, High Sensitivity Power Line Finder, LED and Sound Alert Tool, Portable Detector to Locate Live AC Wires and Metal Pipes Inside Walls,Black
Refrigerant Leak Detector HVAC Halogen Tester With Sound & Light Alarm for Freon Sniffer for w/ Flexible Probe High Sens $24.21
$2421
current price $24.21Refrigerant Leak Detector HVAC Halogen Tester With Sound & Light Alarm for Freon Sniffer for w/ Flexible Probe High Sens
0-1000PPM HVAC Leak Detector Leak Tester Leak Detector AC Sniffer with Light & Alarm $37.02
$3702
current price $37.020-1000PPM HVAC Leak Detector Leak Tester Leak Detector AC Sniffer with Light & Alarm
Freon Leak Detector WJL-6000 Refrigerant HVAC Leak Detector Halogen Gas Sniffer Automotive Gas Finder Halogen Leakage Tester Checker for R134a R410A R12 R22 R404A $27.99
$2799
current price $27.99Freon Leak Detector WJL-6000 Refrigerant HVAC Leak Detector Halogen Gas Sniffer Automotive Gas Finder Halogen Leakage Tester Checker for R134a R410A R12 R22 R404A
1Pack Siemens QFM2100 Humidity Duct Sensor, White $201.17
$20117
current price $201.171Pack Siemens QFM2100 Humidity Duct Sensor, White
Reduced price Freon Leak Detector Halogen Gas Sniffer Refrigerant AC Leak Tester WJL-6000 Halogen Leak Detector Refrigerant HVAC Checker-R134a R410a R22a NEW $17.09 Was $24.39
Now$1709
current price Now $17.09, Was $24.39$24.39
Freon Leak Detector Halogen Gas Sniffer Refrigerant AC Leak Tester WJL-6000 Halogen Leak Detector Refrigerant HVAC Checker-R134a R410a R22a NEW
Elitech ILD-100H HVAC Refrigerant Leak Detector Heated Diode Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder $129.99
$12999
current price $129.99Elitech ILD-100H HVAC Refrigerant Leak Detector Heated Diode Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder
25 out of 5 Stars. 2 reviews
Refrigerant Leak Detector, WJL-6000 PRO Refrigerant HVAC Freon Leak Detector Halogen Freon Sniffer Rechargeable Air Conditioning Detection for CFCs, HCFCs, HFCs, HFOs, HCs $59.99
$5999
current price $59.99Refrigerant Leak Detector, WJL-6000 PRO Refrigerant HVAC Freon Leak Detector Halogen Freon Sniffer Rechargeable Air Conditioning Detection for CFCs, HCFCs, HFCs, HFOs, HCs
GJX 2026 New Wire Pipe Power Detector Adjustable Alert Wall Studs Finder Scanning Tool for Home, Office, Construction, Diy $12.82
$1282
current price $12.82GJX 2026 New Wire Pipe Power Detector Adjustable Alert Wall Studs Finder Scanning Tool for Home, Office, Construction, Diy
HVAC Leak Detector Halogen Leak Tester AC Sniffer CFCs HCFCs Gas Tester with Light & Alarm From $35.04
2 options
Available in additional 2 optionsFrom$3504
HVAC Leak Detector Halogen Leak Tester AC Sniffer CFCs HCFCs Gas Tester with Light & Alarm
BIMZUC Halogen Gas CFC HFC Refrigerant Leak Detector for R134a R410a R22a HVAC System Air Conditioning Refrigeration Tester High Sensitivity Freon Sniffer (9.45 inches / 24 cm) $25.70
$2570
current price $25.70BIMZUC Halogen Gas CFC HFC Refrigerant Leak Detector for R134a R410a R22a HVAC System Air Conditioning Refrigeration Tester High Sensitivity Freon Sniffer (9.45 inches / 24 cm)
WJL-6000 Freon Leak Detector, Halogen Gas Sniffer Refrigerant, AC Leak Tester, Refrigerant HVAC Checker, Dual-Color Battery Voltage Display, R22 R410A R134A R1234YF $22.99
$2299
current price $22.99WJL-6000 Freon Leak Detector, Halogen Gas Sniffer Refrigerant, AC Leak Tester, Refrigerant HVAC Checker, Dual-Color Battery Voltage Display, R22 R410A R134A R1234YF
Clearance Refrigerant Leak Detector with LED Light, Aprvtio WJL-6000PRO Halogen Leak Detector Freon Gas Leakage Tester HVAC Air Condition R22 R410A R134A R1234YF CFCs HCFCs HFCs Indicator Freon Sniffer $21.99 Was $41.99
Now$2199
current price Now $21.99, Was $41.99$41.99
Refrigerant Leak Detector with LED Light, Aprvtio WJL-6000PRO Halogen Leak Detector Freon Gas Leakage Tester HVAC Air Condition R22 R410A R134A R1234YF CFCs HCFCs HFCs Indicator Freon Sniffer
WPP123 Wire & Pipe Detector Wire Pipe Power Detector, Detects Live AC Wires & Metal Pipes in Walls LED & Sound Alerts High Sensitivity, Durable Indoor Wall Safety Tool, 1Pc(Black,5.8x3")
WPP123 Wire & Pipe Detector Wire Pipe Power Detector, Detects Live AC Wires & Metal Pipes in Walls LED & Sound Alerts High Sensitivity, Durable Indoor Wall Safety Tool, 1Pc(Black,5.8x3")
Mamac Duct Sensor, 6" TE-702-B-7-B
Mamac Duct Sensor, 6" TE-702-B-7-B
Mamac Duct Sensor,8" TE-702-B-17-C
Mamac Duct Sensor,8" TE-702-B-17-C
Other options to consider(20)
Specollect 1 Pcs Portable Gas Detector for Home Safety, CO Monitor with Temperature Humidity Sensor and Flashlight, Air Quality Tester for Indoor Outdoor Use Was $24.98
Specollect 1 Pcs Portable Gas Detector for Home Safety, CO Monitor with Temperature Humidity Sensor and Flashlight, Air Quality Tester for Indoor Outdoor Use
Kidde SD-T24 Duct Detector Accessory, 24 in. Sampling Tube $27.92 $27.92/1
$2792
current price $27.92$27.92/1
Kidde SD-T24 Duct Detector Accessory, 24 in. Sampling Tube
Wall Scanner Pipeline Blockage Detector Wall PVC Iron Pipe Diagnostic Tool Sewer Water Plumbing Blocking Detect Meter
Wall Scanner Pipeline Blockage Detector Wall PVC Iron Pipe Diagnostic Tool Sewer Water Plumbing Blocking Detect Meter
Clearance Portable Carbon Monoxide Detector Alarm For Camping And Home Use Of The Day Home Decor From $11.99
From$1199
Portable Carbon Monoxide Detector Alarm For Camping And Home Use Of The Day Home Decor
Air Duct Temperature Sensor, 4 inch probe, 10K Ohm Type II Thermistor. $22.30
$2230
current price $22.30Air Duct Temperature Sensor, 4 inch probe, 10K Ohm Type II Thermistor.
Zircon Wood Stud Superscan 130254 TC and FILTERz $64.11 Was $72.56
Now$6411
current price Now $64.11, Was $72.56$72.56
Zircon Wood Stud Superscan 130254 TC and FILTERz
KAIWEETS Non-Contact Voltage Tester Pen, Dual Range AC 12V/70V-1000V Electrical Tester with LCD Display, CAT IV 1000V, Signal Percentage, Buzzer Alarm, Live Wire Detector and Breakpoint Finder $16.99 Was $22.08
Now$1699
current price Now $16.99, Was $22.08$22.08
KAIWEETS Non-Contact Voltage Tester Pen, Dual Range AC 12V/70V-1000V Electrical Tester with LCD Display, CAT IV 1000V, Signal Percentage, Buzzer Alarm, Live Wire Detector and Breakpoint Finder
Popular in Duct Detector
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