The WatchGas QGM is a versatile multi-gas monitor engineered to keep you and your staff safe while working in hazardous environments. The WatchGas QGM offers detection for up to four different gases: Oxygen, Hydrogen Sulfide, Carbon Monoxide and combustible gases.
When the concentrations of these gases exceed the alarm thresholds, the WatchGas QGM alerts the user by vibrating, flashing LEDs and a 90dB acoustic alarm. An integrated data- and event logger registers measure values, as well as peak and average values, alarms, calibration dates and bump test information for up to two months. All logs can be downloaded to your PC through the WatchGas IR-link software
Size | 60mm x 40mm x 118mm |
Weight | 240g (including cip) |
Sensor Technology | Catalytic or Infrared (LEL), Electrochemical (O2, CO, H2S) |
Temperature | -20°C ~ +50°C |
Humidity | 10 ~ 95% RH (non-condensing) |
Alarm Type | High alarm, low alarm, STEL alarm, TWA alarm, over range alarm, battery low alarm, bumptest and calibration due notification |
Alarm Signal | Acoustic: 95dB @ 10cm Visual: LCD alarm display, LCD backlight indicator LED Vibration alarm |
Display | LCD Display |
Calibration | 2-point calibration, zero and span |
Data Log | Data log 2 months or more Event log /calibration log / bump log: 30 events |
Battery | Type: Lithium-ion rechargeable battery Charging time <6h |
Measurement | Diffusion |
Housing | Rugged durable housing with impact proof coating IP-67 |
Response Time T90 | <15 sec [LEL] / <15 sec [O2] <30 sec [CO] / <30 sec [H2S] |
Accuracy Deviation | 2-3% |
Operation Time | QGM CAT: 24h QGM IR: 2 months |
IP-Rating | IP67 |
Safety Certification | QGM IR: IECEX/PESO: Ex ia IIC T4 Ga ATEX: II 1G ia IIC T4 Ga CSA/UL: Class I, Division 1, Groups A,B,C and/or D, T4 Ex ia IIC T4 Ga INMETRO: Ex ia IIC T4 Ga CE: Conformité Européenne QGM CAT: IECEX: Ex da ia IIC T4 Ga ATEX: II 1G da ia IIC T4 Ga CSA/UL: Class I, Division 1, Groups A,B,C, and/or D, T4 Ex da ia IIC T4 Ga INMETRO: Ex da ia IIC T4 Ga CE: Conformité Européenne |
Sensor Lifetime (expected) | O2: 2 years CO, H2S, LEL: 5 years |
Warranty | 2 years |
Model | Detectable Gas Ranges | Resolution | Response time T90 | Sensor Lifetime (expected |
QGM O2 | 0-30 %vol | 0.1 %vol | < 15 sec | 2 years |
QGM CO | 0-500 ppm | 1 ppm | < 30 sec | 5 years |
QGM H2S | 0-100 ppm | 0.1 ppm | <30 sec | 5 years |
QGM LEL | 0-100 % LEL | 1 % LEL | <15 sec | 5 years |
Description | Article Number |
QGM CAT LEL 0-100% LEL |
7177138 |
QGM CAT O2 0-30 %vol / LEL 0-100% LEL |
7177137 |
QGM CAT O2 0-30 %vol / LEL 0-100% LEL CO 0-500 ppm / H2S 0-100 ppm |
7177135 |
QGM IR LEL 0-100% LEL |
7177131 |
QGM IR O2 0-30 %vol / LEL 0-100 % LEL |
7177132 |
QGM IR O2 0-30 %vol / LEL 0-100% LEL CO 0-500 ppm / H2S 0-100 ppm |
7177134 |
QGM Multi Docking Station | 7189182 |
QGM Mono Docking Station | 7189181 |
WatchGas QGM IR Link | 7189170 |
WatchGas QGM Calibration Cap | 7189183 |
WatchGas QGM Single Charger | 7177212 |
WatchGas QGM 5-Way Stackable Charging Craddle | 7177213 |
WatchGas QGM Charger for 5-Way Stackable Charging Cradle | 7177214 |
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