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  • 1/4" to 1-1/3" NTC Clamp Probe (-40.0° to 257.0°F) Product Image
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    1/4" to 1-1/3" NTC Clamp Probe (-40.0° to 257.0°F) 0613-5505 1/4" to 1-1/3" NTC Clamp Probe (-40.0° to 257.0°F)
    SKU: 0613-5505
    Brand: Testo
    (4)
    $51.00 each
    240
    Wed, May 26
    240
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    240 Wed, May 26
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  • 310, Residential Combustion Analyzer Kit w/ Printer Product Image
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    310, Residential Combustion Analyzer Kit w/ Printer 0563-3110-01 310, Residential Combustion Analyzer Kit w/ Printer
    SKU: 0563-3110-01
    Brand: Testo
    (4)
    $765.00 each
    22
    Wed, May 26
    22
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    22 Wed, May 26
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  • 557S Kit, Smart Digital Manifold w/ 2 Wireless Pipe Clamp Temp. Probes, Vacuum Probe & 4 Hoses Product Image
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    557S Kit, Smart Digital Manifold w/ 2 Wireless Pipe Clamp Temp. Probes, Vacuum Probe & 4 Hoses 0564-5572-01 557S Kit, Smart Digital Manifold w/ 2 Wireless Pipe Clamp Temp. Probes, Vacuum Probe & 4 Hoses
    SKU: 0564-5572-01
    Brand: Testo
    $759.00 each
    52
    Wed, May 26
    52
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    52 Wed, May 26
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  • 550i, Digital App Operated Manifold (-58°F to 302°F) Product Image
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    550i, Digital App Operated Manifold (-58°F to 302°F) 0564-2550-01 550i, Digital App Operated Manifold (-58°F to 302°F)
    SKU: 0564-2550-01
    Brand: Testo
    $289.00 each
    37
    Wed, May 26
    37
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    37 Wed, May 26
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  • Smart Probes AC & Refrigeration Test Kit - Smartphone Operation (incl. 2x 549i, 2x 115i) Product Image
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    Smart Probes AC & Refrigeration Test Kit - Smartphone Operation (incl. 2x 549i, 2x 115i) 0563-0002-20 Smart Probes AC & Refrigeration Test Kit - Smartphone Operation (incl. 2x 549i, 2x 115i)
    SKU: 0563-0002-20
    Brand: Testo
    (1)
    $313.65 each
    58
    Wed, May 26
    58
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    58 Wed, May 26
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  • 550S Kit, 2-Valve Smart Digital Manifold w/ 2 Wireless Pipe Clamp Temp. Probes Product Image
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    550S Kit, 2-Valve Smart Digital Manifold w/ 2 Wireless Pipe Clamp Temp. Probes 0564-5502-01 550S Kit, 2-Valve Smart Digital Manifold w/ 2 Wireless Pipe Clamp Temp. Probes
    SKU: 0564-5502-01
    Brand: Testo
    $499.00 each
    46
    Wed, May 26
    46
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    46 Wed, May 26
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  • Thermal Printer Paper with 10 Year Legibility<br>(6 Rolls) Product Image
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    Thermal Printer Paper with 10 Year Legibility (6 Rolls) 0554-0568 Thermal Printer Paper with 10 Year Legibility (6 Rolls)
    SKU: 0554-0568
    Brand: Testo
    $33.15 each
    36
    Wed, May 26
    36
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    36 Wed, May 26
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  • 310, Residential Combustion Analyzer Kit Product Image
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    310, Residential Combustion Analyzer Kit 0563-3100-01 310, Residential Combustion Analyzer Kit
    SKU: 0563-3100-01
    Brand: Testo
    (1)
    $616.25 each
    13
    Wed, May 26
    13
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    13 Wed, May 26
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  • O2 Gas Cell Type TO2BMD Product Image
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    O2 Gas Cell Type TO2BMD 0393-0005 O2 Gas Cell Type TO2BMD
    SKU: 0393-0005
    Brand: Testo
    $137.00 each
    11
    Wed, May 26
    11
    QtyArrives
    11 Wed, May 26
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  • 550S Kit, 2-Valve Smart Digital Manifold w/ 2 Wired Pipe Temp. Probes Product Image
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    550S Kit, 2-Valve Smart Digital Manifold w/ 2 Wired Pipe Temp. Probes 0564-5501-01 550S Kit, 2-Valve Smart Digital Manifold w/ 2 Wired Pipe Temp. Probes
    SKU: 0564-5501-01
    Brand: Testo
    $399.00 each
    23
    Wed, May 26
    23
    QtyArrives
    23 Wed, May 26
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  • 552, Digital Vacuum Gauge w/ Bluetooth<br>(1100 to 0 mBar) Product Image
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    552, Digital Vacuum Gauge w/ Bluetooth (1100 to 0 mBar) 0560-5522-01 552, Digital Vacuum Gauge w/ Bluetooth (1100 to 0 mBar)
    SKU: 0560-5522-01
    Brand: Testo
    (2)
    $194.65 each
    34
    Wed, May 26
    34
    QtyArrives
    34 Wed, May 26
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  • 115i - Pipe-clamp thermometer operated via smartphone - 350 ft. Bluetooth Range Product Image
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    115i - Pipe-clamp thermometer operated via smartphone - 350 ft. Bluetooth Range 0560-2115-03 115i - Pipe-clamp thermometer operated via smartphone - 350 ft. Bluetooth Range
    SKU: 0560-2115-03
    Brand: Testo
    $67.15 each
    48
    Wed, May 26
    48
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    48 Wed, May 26
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  • 317-3, Ambient Carbon Monoxide Meter<br>(0 to 1999 ppm) Product Image
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    317-3, Ambient Carbon Monoxide Meter (0 to 1999 ppm) 0632-3173 317-3, Ambient Carbon Monoxide Meter (0 to 1999 ppm)
    SKU: 0632-3173
    Brand: Testo
    (1)
    $199.75 each
    22
    Wed, May 26
    22
    QtyArrives
    22 Wed, May 26
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  • 510 Differential Pressure Manometer Kit w/ Silicone Tubes Product Image
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    510 Differential Pressure Manometer Kit w/ Silicone Tubes 0563-0510-01 510 Differential Pressure Manometer Kit w/ Silicone Tubes
    SKU: 0563-0510-01
    Brand: Testo
    $152.15 each
    20
    Wed, May 26
    20
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    20 Wed, May 26
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  • Replacement Particle Filter (Pack of 10) Product Image
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    Replacement Particle Filter (Pack of 10) 0554-0040 Replacement Particle Filter (Pack of 10)
    SKU: 0554-0040
    Brand: Testo
    (1)
    $37.40 each
    10
    Wed, May 26
    10
    QtyArrives
    10 Wed, May 26
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  • 605i - Thermohygrometer operated via smartphone - 350 ft. Bluetooth Range Product Image
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    605i - Thermohygrometer operated via smartphone - 350 ft. Bluetooth Range 0560-2605-03 605i - Thermohygrometer operated via smartphone - 350 ft. Bluetooth Range
    SKU: 0560-2605-03
    Brand: Testo
    $117.56 each
    12
    Wed, May 26
    12
    QtyArrives
    12 Wed, May 26
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  • Standard Smoke Test Kit Product Image
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    Standard Smoke Test Kit 0554-0307 Standard Smoke Test Kit
    SKU: 0554-0307
    Brand: Testo
    $124.10 each
    11
    Wed, May 26
    11
    QtyArrives
    11 Wed, May 26
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  • CO Sensor Product Image
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    CO Sensor 0393-0060 CO Sensor
    SKU: 0393-0060
    Brand: Testo
    $219.30 each
    18
    Wed, May 26
    18
    QtyArrives
    18 Wed, May 26
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  • 510i - Differential Pressure Manometer Smart & Wireless Probe Product Image
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    510i - Differential Pressure Manometer Smart & Wireless Probe 0560-1510-01 510i - Differential Pressure Manometer Smart & Wireless Probe
    SKU: 0560-1510-01
    Brand: Testo
    $114.75 each
    22
    Wed, May 26
    22
    QtyArrives
    22 Wed, May 26
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  • External Vacuum Probe (DIN Connection) Product Image
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    External Vacuum Probe (DIN Connection) 0638-1557 External Vacuum Probe (DIN Connection)
    SKU: 0638-1557
    Brand: Testo
    (1)
    $165.75 each
    4
    Wed, May 26
    4
    QtyArrives
    4 Wed, May 26
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  • Smart Probes AC & Refrigeration Test & Load Kit - (incl. 2x 549i, 2x 115i, 2x 605i) Product Image
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    Smart Probes AC & Refrigeration Test & Load Kit - (incl. 2x 549i, 2x 115i, 2x 605i) 0563-0009 Smart Probes AC & Refrigeration Test & Load Kit - (incl. 2x 549i, 2x 115i, 2x 605i)
    SKU: 0563-0009
    Brand: Testo
    $509.15 each
    9
    Wed, May 26
    9
    QtyArrives
    9 Wed, May 26
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  • Smart Probes HVAC/R Complete Kit (incl. 2x 115i, 2x 549i, 2x 605i, 905i, 805i, 405i, 410i, 510i) Product Image
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    Smart Probes HVAC/R Complete Kit (incl. 2x 115i, 2x 549i, 2x 605i, 905i, 805i, 405i, 410i, 510i) 0563-0007 Smart Probes HVAC/R Complete Kit (incl. 2x 115i, 2x 549i, 2x 605i, 905i, 805i, 405i, 410i, 510i)
    SKU: 0563-0007
    Brand: Testo
    $874.65 each
    8
    Wed, May 26
    8
    QtyArrives
    8 Wed, May 26
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  • 316-3, Refrigerant Leak Detector (-4°F to 122°F) Product Image
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    316-3, Refrigerant Leak Detector (-4°F to 122°F) 0563-3163 316-3, Refrigerant Leak Detector (-4°F to 122°F)
    SKU: 0563-3163
    Brand: Testo
    $313.65 each
    9
    Wed, May 26
    9
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    9 Wed, May 26
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  • 905i - Thermometer Smart & Wireless Probe Product Image
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    905i - Thermometer Smart & Wireless Probe 0560-1905-01 905i - Thermometer Smart & Wireless Probe
    SKU: 0560-1905-01
    Brand: Testo
    (1)
    $84.15 each
    8
    Wed, May 26
    8
    QtyArrives
    8 Wed, May 26
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FAQs, Manuals & Videos

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  • Testo is a world leader in the design, development and manufacture of portable test and measurement instrumentation. Backed by over 50 years of measuring engineering experience their mission is to provide the best quality, service and value in the industry. Testo is recognized as the leading worldwide manufacturer of portable combustion efficiency analyzers and air emission analyzers. Testo has also become a major supplier of HVAC, critical HVAC, refrigeration, airflow, and environmental monitoring instruments for markets as diverse as chemical, food service and production, pharmaceutical and biotech, and residential HVAC suppliers.

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