
Startup instruction
Smart Probes can only be used with smart phones and
tablets
Smart Probes can only be used with smart phones and
tablets using the Testo Smart Probe App.
using the Testo Smart Probe App.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

2 Overview
Laser radiation! Class 2 laser
1 Safety
1.1. Safety with testo 510i
May be harmful to those with pacemakers.
> Keep a minimum distance of 10 cm betw een pacem aker and
1.2. Safety with testo 549i
Risk of injury caused by pressurized, hot, cold or toxic refrigerants/media!
> Only to be used by qualified staff.
> Wear protective goggles and safety gloves.
> Before applying pressure to the measuring instrument: always fix the
instrument tightl y onto the pr ess u re con nection.
> Comply with the permissible measuring range (0 to 60 bar). Pay
particular attention to this in systems with R744 refrigerant, since these
are frequently operated with higher pressures!
1.3. Safety with testo 805i
CAUTION
> Do not look into the laser beam!
2 Overview
1 Measuring unit
2 LED
3 Key
4 Battery compartment (at the back)
2