Specifications
Touch System Comparison Chart* (Continued)
*
Manufacturer’s published data.
Durability/ Resistance to
Vandalism
NEMA Ratings,
Moisture Resistance
Dust and Dirt Resistance Chemical Resistance
Vibration
and Shock Resistance
Ambient Light
Temperature, Humidity, and
Altitude
Capacitive
Overlay
Difficult to scratch, con-
ductive layer is subject
to wear, glass overlay is
breakable
NEMA 12
NEMA 4
Will operate with
moderate dust and dirt,
excessive accumulation
will affect performance
Not affected by general
purpose cleaning
solutions
Tolerant of vibration,
thick glass overlay
moderately susceptible
to shock
Unaffected by
ambient light
0° to 70°C
0 to 95% non-condensing
humidity;
30,000 ft. (9,000m)
Near Field Imaging
Difficult to scratch,
glass overlay is break-
able
NEMA 12
NEMA 4
Not affected by dust and
dirt
Not affected by general
purpose cleaning
solutions
Tolerant of vibration and
shock
Unaffected by
ambient light
0° to 50°C;
0 to 95% non-condensing
humidity;
altitude not specified
Guided
Acoustic Wave
Difficult to scratch, glass
overlay is
breakable
NEMA 12
NEMA 4
Not affected by dust and
dirt
Not affected by general
purpose cleaning
solutions
Tolerant of vibration,
glass overlay susceptible
to shock
Unaffected by
ambient light
0° to 50°C;
0 to 95% non-condensing
humidity;
altitude not specified
Resistive
Overlay
Sensor is vulnerable to
scratches and
abrasions, glass
overlay can be broken
NEMA 12
NEMA 4
Not affected by dust and
dirt
Not affected by general
purpose cleaning
solutions. Chemicals
that affect polyester
should not be used
Tolerant of vibration,
glass overlay susceptible
to shock
Unaffected by
ambient light
0° to 50°C;
0 to 95% non-condensing
humidity;
15,000 ft. (4,500 m)
Scanning
Infrared
Not susceptible to
scratching, no overlay to
break, completely solid-
state, no exposed parts
NEMA 12
NEMA 4
Will operate with
moderate dust and dirt,
excessive accumulation
may affect performance
Not affected by general
purpose cleaning
solutions. Chemicals
that affect
polycarbonates should
not be used
Tolerant of vibration and
shock
Varies by manufacturer 0° to 55°C;
0 to 95% non-condensing
humidity;
altitude not specified
Surface
Acoustic Wave
Difficult to scratch, glass
overlay is breakable
NEMA 12 Will operate with
moderate dust and dirt,
excessive accumulation
may affect performance
Not affected by general
purpose cleaning
solutions
Tolerant of vibration,
glass overlay is
susceptible to shock
Unaffected by
ambient light
0° to 50°C;
0 to 95% non-condensing
humidity;
altitude not specified
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