Testo 400 Comfort Kit (0563 0409)
Testo 400 Air Flow Kit (0563 0407)
Testo 400 IAQ KIT FOR CO & CO2 (0563 0408)
Testo 400 - Universal Air Flow and IAQ Instrument (0560 0400)
Testo IAQ data logger for long-term measurements
Testo Hot Wire Probe (Temperature and Humidity Sensor) w/Bluetooth * For 400 & 440 (0635 1571)
Testo Hot Wire Probe (Temperature and Humidity Sensor)-Fixed Cable * For 400 & 440 (0635 1572)
Testo Vane probe head only (Ø 100 mm) *For Testo 400 & 440 (0635 9430)
Testo Hot Wire Probe (Temperature Sensor) - Fixed Cable *For 400 & 440 (0635 1032)
Testo Universal Bluetooth® handle for connecting probe heads (0554 1111)
Testo Universal cable handle for connecting Testo 400 probe heads (0554 2222)
Testo Handle adapter for connection to Testo 400 Air Flow Probes (0554 2160)
Testo USB mains unit with cable (0554 1106) - For Testo 400
