9 V rechargeable battery for testo measuring instruments

CO meter testo 317-3

CO₂ Meter Air Co₂ntrol Life

CO₂ meter testo 535

Differential pressure measuring instrument testo 512-1

Differential pressure measuring instrument testo 512-2

Differential pressure meter testo 510i

Digital probes for climate measuring instrument testo 440

Globe thermometer for testo measuring instruments