User Manual

6 Technical data
18
Measurable media
All refrigerants that are stored in the testo
549 and testo 550
Ammonia (R717) and other refrigerants
which contain ammonia will damage the
manifold
Ambient conditions
Operating temperature: -4 to 122 °F
(-20 to 50 °C)
Storage temperature: -4 to 140 °F
(-20 to 60 °C)
Bluetooth
Range >20 m / 65 ft (unobstructed field)
Housing
Material: ABS/PA/TPU
Dimensions: 7.87 x 4.29 x 2.48 in.
(265 x 135 x 75 mm)
Weight: approx. 2.83 lbs.
1060 g (without batteries)
IP class
42
Power supply
4 x 1.5 V, type AA/mignon/LR6 rechargeable
or standard batteries
Battery life: approx. 250h
(display light off, Bluetooth off)
Display
Type: Illuminated LCD Response time: 0.5 s
Directives,
standards and tests
EC Directive: 2014/30/EC
Warranty
Duration: 2 years
Warranty conditions: see website
www.testo.com/warranty