Testo 400 Telescoping extension (length 15.75" to 33.5") for testo 400 series air flow probes

Testo 440 Telescoping extension (length 15.75" to 33.5") for testo 440 air flow probes

Features:

• Telescope extension from 0.4 to 0.9 m long
• The telescope extension is easy to connect to the extendable telescope for flow probes
• Sturdy and non-rotatable

Use the telescope extension to easily extend the telescope for air velocity probes with universal handle attain a total probe length of up to 2 m.