Customer Rating

4.8/5 Stars

22051 REVIEWS

A Leading Innovator in State-of-the-Art Measuring Technology

FREE SHIPPING ON ONLINE ORDERS OVER $199*

A Leading Innovator in State-of-the-Art Measuring Technology

Testo Instruments - Gas and Combustion Accessories

Showing 1 to 20 of 272 products

Testo 0554 2400 Sensor, CO2-

Testo 0554 2400 Sensor, CO2
Model: 0554 2400

Sale Price $4838.20 USD
Regular Price $5692.00 USD
Availability 5 to 6 Weeks

Qty:

Sale Price $4838.20 USD
Regular Price $5692.00 USD
Availability 5 to 6 Weeks
Quantity

Testo 400600 7830 Super High Temperature Probe-

Testo 400600 7830 Super High Temperature Probe
Model: 400600 7830

Discontinued!

This product has been discontinued and is no longer available. There are no replacement options. You can use our search to help you find what you need.

Testo 400600 7821 Dusty Application Probe and Hose Kit, Low Temp-

Testo 400600 7821 Dusty Application Probe and Hose Kit, Low Temp
Model: 400600 7821

Discontinued!

This product has been discontinued and is no longer available. There are no replacement options. You can use our search to help you find what you need.

Testo 0600 7610 Industrial Probe Kit-

Testo 0600 7610 Industrial Probe Kit
Model: 0600 7610

Sale Price $2311.15 USD
Regular Price $2719.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $2311.15 USD
Regular Price $2719.00 USD
Availability 2 to 3 Weeks
Quantity

Testo 0600 8767 Modular Flue Gas Probe with Pre-filter, 700 mm, ø 14 mm, Tmax 1000 °C-

Testo 0600 8767 Modular Flue Gas Probe with Pre-filter, 700 mm, ø 14 mm, Tmax 1000 °C
Model: 0600 8767

Sale Price $2286.50 USD
Regular Price $2690.00 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $2286.50 USD
Regular Price $2690.00 USD
Availability 4 to 5 Weeks
Quantity

Testo 0699 6446/31 Testo Replacement Sensor Assembly for 6446-

Testo 0699 6446/31 Testo Replacement Sensor Assembly for 6446
Model: 0699 6446/31

Sale Price $2067.20 USD
Regular Price $2432.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $2067.20 USD
Regular Price $2432.00 USD
Availability 2 to 3 Weeks
Quantity

Testo 400563 4354 435-4 Deluxe HVAC/R Performance Kit-

Testo 400563 4354 435-4 Deluxe HVAC/R Performance Kit
Model: 400563 4354

Discontinued!

This product has been discontinued and is no longer available.

Click here for replacement options.

Testo 400563 4355 435-4 IAQ Meter Kit with Memory, Differential Pressure, and IAQ Probe-

Testo 400563 4355 435-4 IAQ Meter Kit with Memory, Differential Pressure, and IAQ Probe
Model: 400563 4355

Discontinued!

This product has been discontinued and is no longer available.

Click here for replacement options.

Testo 0554 3922 No Measuring Cell Upgrade, 0-3000 PPM, High Range, 1 PPM Res-

Testo 0554 3922 No Measuring Cell Upgrade, 0-3000 PPM, High Range, 1 PPM Res
Model: 0554 3922

Discontinued!

This product has been discontinued and is no longer available. There are no replacement options. You can use our search to help you find what you need.

Testo 0600 8766 Modular Flue Gas Probe with Pre-filter, 335 mm, ø 14 mm, Tmax 1000 °C-

Testo 0600 8766 Modular Flue Gas Probe with Pre-filter, 335 mm, ø 14 mm, Tmax 1000 °C
Model: 0600 8766

Sale Price $1749.30 USD
Regular Price $2058.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $1749.30 USD
Regular Price $2058.00 USD
Availability 2 to 3 Weeks
Quantity

Testo 0600 8765 Modular Flue Gas Probe, 700 mm, ø 8 mm, Tmax 1000 °C-

Testo 0600 8765 Modular Flue Gas Probe, 700 mm, ø 8 mm, Tmax 1000 °C
Model: 0600 8765

Sale Price $1687.25 USD
Regular Price $1985.00 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $1687.25 USD
Regular Price $1985.00 USD
Availability 4 to 5 Weeks
Quantity

Testo 400600 7820 Low Temperature Probe and Hose Kit -

Testo 400600 7820 Low Temperature Probe and Hose Kit
Model: 400600 7820

Discontinued!

This product has been discontinued and is no longer available. There are no replacement options. You can use our search to help you find what you need.

Testo 0390 0093 NO Replacement Sensor, 0-3000 ppm-

Testo 0390 0093 NO Replacement Sensor, 0-3000 ppm
Model: 0390 0093

Discontinued!

This product has been discontinued and is no longer available. There are no replacement options. You can use our search to help you find what you need.

Testo 0635 9540 Vane & Temperature Combination Probe, .63" (16mm)-

Testo 0635 9540 Vane & Temperature Combination Probe, .63" (16mm)
Model: 0635 9540

Discontinued!

This product has been discontinued and is no longer available.

Click here for replacement options.

Testo 0390 0090 CO Replacement Sensor, 0-8000 pppm-

Testo 0390 0090 CO Replacement Sensor, 0-8000 pppm
Model: 0390 0090

Sale Price $1337.05 USD
Regular Price $1573.00 USD
Availability 13 to 14 Weeks

Qty:

Sale Price $1337.05 USD
Regular Price $1573.00 USD
Availability 13 to 14 Weeks
Quantity

Testo 0600 8764 Modular Flue Gas Probe, 335 mm, ø 8 mm, Tmax 1000 °C-

Testo 0600 8764 Modular Flue Gas Probe, 335 mm, ø 8 mm, Tmax 1000 °C
Model: 0600 8764

Sale Price $1255.45 USD
Regular Price $1477.00 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $1255.45 USD
Regular Price $1477.00 USD
Availability 3 to 4 Weeks
Quantity

Testo 0393 0104 CO (H<sub>2</sub>-Compensated) Replacement Sensor, 0 to 10,000 ppm, red-

Testo 0393 0104 CO (H2-Compensated) Replacement Sensor, 0 to 10,000 ppm, red
Model: 0393 0104

Sale Price $1105.00 USD
Regular Price $1300.00 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $1105.00 USD
Regular Price $1300.00 USD
Availability 4 to 5 Weeks
Quantity

Testo 0554 2151 Nitric Oxide Upgrade Module for 330-1G LL-

Testo 0554 2151 Nitric Oxide Upgrade Module for 330-1G LL
Model: 0554 2151

Sale Price $1076.10 USD
Regular Price $1266.00 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $1076.10 USD
Regular Price $1266.00 USD
Availability 1 to 2 Weeks
Quantity

Testo 0632 1543 IAQ Probe w/ Tripod-

Testo 0632 1543 IAQ Probe w/ Tripod
Model: 0632 1543

Discontinued!

This product has been discontinued and is no longer available. There are no replacement options. You can use our search to help you find what you need.

Testo 0600 9767 Modular Flue Gas Probe, 700 mm, ø 8 mm, Tmax 500 °C-

Testo 0600 9767 Modular Flue Gas Probe, 700 mm, ø 8 mm, Tmax 500 °C
Model: 0600 9767

Sale Price $987.70 USD
Regular Price $1162.00 USD
Availability 6 to 7 Weeks

Qty:

Sale Price $987.70 USD
Regular Price $1162.00 USD
Availability 6 to 7 Weeks
Quantity
Showing 1 to 20 of 272 products
We Ship Free on Orders Over $199 within Canada

  • We accept these payment methods:
  • Visa, Master Card, Discover, American Express & PayPal
  • We also accept wire transfers/EFT, cheques and purchase orders on approved credit. Accepted payment methods vary by country.