Welch Allyn Model 767
Welch Allyn’s M678/679 thermistor probes used with 767 thermometers can be identified by color
combinations as follows:
Handle
Color
Top Color Connector
Color/Type
Model # Probe Type
Fog White Blue Fog White,
Latching
M678 Oral/Axillary
Fog White Red Fog White,
Latching
M679 Rectal
The Model 767 instrument’s connector receptacle configuration and size disallows insertion of any but
Model 678/679 probes and older, previous M767 probes.
The probe covers are unchanged from previous Welch Allyn thermistor thermometer models and are
compatible for use with all of Welch Allyn’s thermistor based thermometers.
S
u
r
e
T
e
m
p
1
3
2
4
9
5
6
8
7
1. Display 6. Probe
2. Probe storage channel 7. Probe handle collar
3. Dual probe cover storage well 8. Ejection button
4. Probe connector receptacle 9. Mode selection button
5. Probe connector receptacle latch
FIGURE 1 - THERMOMETER DIAGRAM