Klein Tools Thermocouple 69144 K-Type Temperature Probe (Stainless Steel Piercing Tip 1112F 5 Foot Coiled Lead HVAC Air Duct Diagnostics Adapter)

Penetrate Fiberglass Air Ducts and Map Internal Thermal Streams Instantly with a Sharp Stainless Steel Piercing Tip

Shop the Klein Tools 69144 K-Type temperature piercing probe engineered to capture internal air stream metrics inside insulated ventilation infrastructure. This high-performance diagnostic thermocouple registers raw thermal distributions spanning an extreme scale from -58°F to 1112°F to audit intense furnace outputs and standard conditioning returns. Operating through an industrial stainless steel pointed tip and a 5-foot coiled extension cord, the instrument resolves internal measurement challenges through fiberglass ductwork insulation boards without drilling destructive staging ports.

Best Used For:

• Insulated Duct Penetration: Piercing thick fiberglass wrap or structural duct board panel faces to map inner branch stream velocity properties.
• Furnace Exhaust Analysis: Inserting the corrosion-resistant steel stem directly into hot flue output lines to record temperatures up to 1112°F.
• Static Air Stream Audits: Traversing plenum loops and register paths with the extended cord to track split-system thermal balancing properties.

Key Performance & Safety Features

• Hardened Piercing Tip: Precision-ground pointed stainless steel tip glides cleanly through rugged insulation matrices without bending or snapping.
• Broad Thermal Profile: Heavy-duty thermocouple module tracks extreme internal conditions spanning from -58° up to 1112° Fahrenheit.
• Tangle-Free Coiled Lead: Flexible 5-foot coiled core lead provides expanded field reach inside deep cabinets while retaining a compact tool bag envelope.
• Dual-Interface Connectivity: Native K-type sub-miniature socket interfaces with an included banana plug adapter block to match standard multi-tester ports.
• Corrosion-Resistant Armor: Industrial-grade stainless alloy composition shields inner calibration loops from chemical oxidation inside flue paths.

What's Included

• 69144 K-Type Temperature Probe
• K-Type to Banana Plug Adapter (Cat. No. 69146)

Technical Specifications

Pro-Tip: When deploying the piercing sensor through heavy fiberglass barrier board linings, rotate the handle assembly slightly back and forth during entry; this actions slices clean matrix tracks and safeguards the outer probe sheath.