3M™ PROTÉGÉ SG
PORTABLE, REUSABLE SINGLE-GAS MONITOR
SPECIFICATIONS
087-0065, Rev D/February 2019
A-3
Operating Humidity
15% to 90% RH, non-condensing
SO
2
(Sulfur dioxide) Sensor
Range
0 to 150 ppm
Operating Temperature
-4°F to 122°F (-20°C to +50°C)**
Operating Humidity
15% to 90% RH, non-condensing
Cl
2
(Chlorine) Sensor
Range
0 to 50 ppm
Operating Temperature
-4°F to 122°F (-20°C to +50°C)**
Operating Humidity
15% to 90% RH, non-condensing
ClO
2
(Chlorine Dioxide) Sensor
Range
0 to 5 ppm
Operating Temperature
-4°F to 104°F (-20°C to +50°C)**
Operating Humidity
15% to 90% RH, non-condensing
NH
3
(Ammonia) Sensor
Range
0 to 300 ppm
Operating Temperature
-4°F to 104°F (-20°C to +50°C)**
Operating Humidity
15% to 90% RH, non-condensing
*Note: Due to a high-cross-sensitivity, this sensor is unsuitable for use in areas where hydrogen
sulfide (H
2
S) may be present. This sensor should not be configured in a unit that uses either the
H
2
S (standard) or dual-gas (CO-H
2
S) sensor.
**Note: Degraded accuracy < 0°C
Table A-2: Sensor Specifications