Features:
the difference:
The testo 549 does not support bluetooth, the testo 550 does.
Testo 549 list: main unit, English manual, color box.
List of testo 550: main unit, English manual, two-clamp temperature probe, instrument case.
Specification:
Shell material: ABS/PA/TPU
Dimensions: 265 x 135 x 75 mm / 10.43 x 5.31 x 2.95 inches
Weight: Approx. 1000g
Parameters: Pressure: kPa/MPa/bar/psi, Temperature: ¡É/¢µ/K.
Sensors: Pressure: 2 x Pressure Sensors, Temperature: 2 x NTC
Measurements. Period: 0.5s
Interface pressure connection: 3x7/16" UNF, NTC measurement measurement
scope:
HP/LP Pressure Range: -100 to 6000 kPa / -0.1 to 6 Mpa / -1 to 60 bar (rel) / -14.7 to 870 psi
Temperature Range: -50 to +150 ¡ÆC / -58 at 302 ¡ÆF
Vacuum measuring range (rel): -1 to 0 bar / -14.7 to 0 psi
Overload: 65 bar, 6500 kPa, 6.5 Mpa, 940 psi
Resolution: Pressure Resolution: 0.01 bar / 0.1 psi / 1 kPa / 0.001 MPa
Temperature Resolution: 0.1¡ÆC/0.1¡ÆF
Amount of refrigerant: 60
Measurable medium: R114; R407C. R444B; R12. R407F; R448A; R123. R407H; R449A; R1233zd; R408A; R450A; R1234yf; R409A; R452A; R1234ze; R410A; R452B; R414B; R453a; R125; R416A; All; R422C; R500; R32. R422D; R114 R401A; R424A; R503; R401B; R427A; R507; R402A; R434A; R513A; R402B; R437A; R600a; R404A. R438A; R718 ; R407A; R442A; R744 (CO2)
Environmental Conditions: Operating Temperature: -20 to 50¡ÆC/-4 to 122¡ÆF
Storage temperature: -20 to 60¡É/-4 to 140¢µ
IP rating: 42
Batteries: 4 AA batteries (not included)
Display Type: Backlit LCD
Response time: 0.5 seconds
Package includes:
A: 1*Refrigerant table
B: 1*refrigerant meter+3*tube+2*test clamp
Note:
1. Due to the difference of display and lighting effect, the actual color of the item may be slightly different from the color shown on the picture. Thanks!
2. Due to manual measurement, please allow a little measurement deviation.