Lanyard Loop & Clip
A clip is on back of the device. Use this
to attach to your shirt or other location.
Sensor Inlet
Where gas is measured. Keep it clean
and do not puncture the membrane.
LED Indicator Lights
These red lights will flash when the gas
concentration is high enough for an alarm.
There are four lights around the LCD.
LCD Display
Shows gas concentration from
0 - 1,999 parts per million for CO and
0 - 400 parts per million for H2S
Power / MUTE Button
Press & hold to turn the power ON or OFF.
Press to mute the buzzer for up to 5 Minutes.
Buzzer / Speaker
Makes a beeping sound when an alarm
is active. Do not puncture the membrane.
Warranty
Each Inspector comes standard with a two year warranty
on all of its parts. It is recommended that you calibrate the
Inspector every six months to ensure the best accuracy
possible. An EOL (End of Life) symbol will display on the
LCD after two years of use. A successful calibration will
remove the EOL notification for an additional 180 days.
Future successful calibrations can continue to be done as
long as the electrochemical sensing element remains in
good condition.
Maximum Operating Conditions
Temperature: -20°C to +50°C (-4°F to +122°F)
Humidity: 20-90% R.H. (0-99% intermittent)
Practical Considerations
Short-term measurements (i.e. <1hr) in any humidity
(0-99% R.H.) are fine as long as condensation does not
block the sensor inlet. Longer term exposure to extreme
humidity or temperature outside the specified range can
result in damage to the sensor. Please note that the LCD
display and sensor will not function properly at colder
temperatures outside of the specified operating range.
NOTE: Exposure to higher temperatures
and humidity can damage the device.
Instruction Manual
KNOW YOUR ENVIRONMENT
for Carbon Monoxide and Hydrogen
Sulfide Inspector Models
2
6
43
7
5
8
Introduction
Thank you for choosing the Sensorcon Inspector!
We want to be your go to resource for all of your
professional gas detection needs! Please contact us
if you have any questions or concerns and we’ll do
our best to make sure you’re 100% satisfied.
This manual covers the features, specifications and
operating instructions for the Basic, Industrial and
Industrial Pro versions of Carbon Monoxide (CO)
and Hydrogen Sulfide (H2S) meters.
Contact Information
425 Essjay Road, Suite 100
Buffalo, NY 14221
Office: (716) 566-2728
sales@sensorcon.com
www.sensorcon.com
Hours of Operation
Monday through Friday: 8am to 4pm
Note: East Coast Time Zone
Inspector Features Comparison
Two Year Warranty
Water Resistant
Shockproof
Pre-set Alarms
Visual Alarm
Audio Alarm
Vibrating Alarm
Intrinsically Safe
Adjustable
Alarms
24 Hour TWA
Certications
CE CERTIFIED
(All Models)
ETL CLASSIFIED (Industrial
& Industrial Pro)
THIS DEVICE CONFORMS TO UL STD 913;
CERTIFIED TO CSA STD C22.2 NO 157
Intertek/ETL control number 4004813
WARNING: SUBSTITUTION OF COMPONENTS
MAY IMPAIR INTRINSIC SAFETY
AVERTISSEMENT: LA SUBSTITUTION DE
COMPOSANTS PEUT COMPROMETTRE
LASECURITE INTRINSEQUE
WARNING: DO NOT SERVICE THIS DEVICE
IN A HAZARDOUS ENVIRONMENT
AVERTISSEMENT: NE PAS RÉPARER CET APPAREIL
DANS UN ENVIRONNEMENT DANGEREUX
WARNING: EXPOSURE TO HIGHER
TEMPERATURES CAN CAUSE DAMAGE
TO THIS DEVICE
AVERTISSEMENT: EXPOSITION À LA
SURPRESSION LES TEMPERATURES PEUVENT
CAUSER DES DOMMAGES À CET APPAREIL
Technical Specications
CO Range: 0 - 500ppm, display 0 to 1,999pp
H2S Range: 0 - 400ppm
Resolution: 1ppm
CO Accuracy: +/-10%, 0 to 500ppm
H2S Accuracy: +/-10% or +/-1ppm (which ever is greater)
Initial Response Time: < 5 seconds
T90 Response Time: < 20 seconds
Display: real-time continuous readings
Size: 3.2” x 2.2” x 0.86”
Weight: 4 ounces
Warranty: 2 years
Battery Life: 2 years (depending on alarm condition)
CO Alarm Set Points: 35ppm low, 200ppm high
H2S Alarm Set Points: 10ppm low, 15ppm high
Alarms: Vibrating (Industrial & Industrial Pro),
Audio and visual
Temperature Range: -4 to 122°F (-20 to 50°C)
Humidity Range: 20 - 90% (0 to 99% intermittent)
MAX Button
Press to make the LCD display the
maximum concentration measured
while the function is enabled.
Note: New readings will only be displayed
after a new high is encountered.
Time
Weighted
Average
Displays the maximum
8 hour average in the last
24 hours. (Industrial Pro
model only)
Battery
Indicator
Displays when the
battery is low and
needs a replacement.
HOLD
Displays a countdown for
powering off or entering
the calibration mode.
HI
Displays when the HIGH alarm
is exceeded (200ppm for CO
and 15ppm for H2S).
LO
Displays when the
LOW alarm is exceeded
(35ppm for CO and
10ppm for H2S).
Check Box
Indicates a successful
zero calibration.
Gas Icon
Displays when applying
gas in calibration mode.
Cal
Indicates the device
is in calibration mode.
PPM
Displays on the screen
when measuring gas.
DAYS
Indicates the number
of days until calibration
is due.
NOTE: Time Weighted Average (TWA) is a feature that is only available on the
Industrial Pro Inspector Model.
Arrow 1
Displays over MUTE
to indicate when
alarm is muted.
ALARM
Displays when the
lower alarm level has
been exceeded
(35ppm for CO and
10ppm for H2S).
Arrow 2
Displays over
MAX to indicate
the device is in
MAX hold mode.
Zero
Displays as 1st step
during calibration to
establish 0 ppm
status.
INS2-CO-01
INS2-H2S-01
Inspector
CO Models:
H2S Models:
INS2-CO-02
INS2-H2S-02
Industrial
INS2-CO-03
INS2-H2S-03
Indust. Pro
Pro