Free Testo 550 A/C Troubleshooting Guide
Testo 550 Kit 1
Testo 550 Clamp Probe
testo 460 optically measures rpm, e.g. of fans and shafts. The measurement spot is displayed on the moving object with an LED light.
Max./min. values are displayed directly at the press of a button. The backlit display allows the measurement values to be easily read out, even in low light conditions.
The testo 460 is very handy, small and easy to operate.