The GasWatch 2 is the first single-gas monitor that can be comfortably worn on the wrist like a watch. The GasWatch 2 is a convenient, inexpensive, hands-free method of gas monitoring for personal protection of oxygen deficiency, carbon monoxide or hydrogen sulfide. The built in vibrator, audible, and visual alarms immediately alert the user of a dangerous gas condition.
The GasWatch 2 is controlled by a microprocessor for reliability and advanced capabilities. Some of these advanced capabilities include distinctive audible and visual alarms for dangerous gas conditions and malfunctions, a large digital readout with a manual backlight that also automatically lights in an alarm condition, as well as the display of PEAK, TWA, and STEL readings. The replacement sensors are inexpensive, easily field replaceable and have a life expectancy of about 2 years. Equipped with a watch band, optional belt clip or hard hat clip, the GasWatch 2 can be worn either on the wrist, belt, or hard hat.
The GasWatch 2 will operate for over 3000 hours on one battery (about 1 year normal use). And yes, the GasWatch 2 even tells the time!
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Features
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Applications
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- Hands free gas monitoring
- 3 Gases to choose from CO, H2S, or O2
- Compact "watch type" design
- Vibration, visual and audible alarms standard
- Over 3,000 hours of operation from 1 battery
- Fast, accurate response with digital LCD display
- Fits on your arm, wrist, or belt
- Manual backlight (Automatic light during alarm)
- Sensor fail alarm
- PEAK hold function (Max. value during operation)
- TWA and STEL function
- Displays current time
- 2 Year warranty
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- Worker Safety
- Chemical Plants
- Hazardous Waste Sites
- Mines
- Tunnels
- Sewage Treatment Plants
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Model Name
(Part #) |
GW-2X
72-0007RK |
GW-2H
73-0041RK |
GW-2C
73-0040RK |
Measuring
Gas |
Oxygen (O2) |
Hydrogen Sulfide
(H2S) |
Carbon Monoxide (CO) |
Detection
Principle |
Galvanic cell |
Electrochemical |
| Sensor Type |
OS-BM2 |
ES-1827 |
ES-1821 |
Measuring
Range
(Increments) |
0 - 40.0% vol.
(0.1% vol.) |
0 - 100.0 ppm
(0.5 ppm) |
0 - 500 ppm
(1 ppm) |
| Accuracy Statement |
± 0.5% of O2 |
± 5% of reading or
± 2 ppm H2S
(whichever is greater) |
± 5% of reading or
± 5 ppm CO
(whichever is greater) |
Alarm Points
(Factory Set) |
Low - 19.5% vol.
High - 23.5% vol.
Over - 40.0% vol. |
1st - 10.0 ppm
2nd - 30.0 ppm
TWA - 10.0 ppm
STEL - 15.0 ppm
Over - 100.0 ppm |
1st - 25 ppm
2nd - 50 ppm
TWA - 25 ppm
STEL - 200 ppm
Over - 500 ppm |
| Alarm Types |
Gas alarm: 2 step alarm, STEL, TWA, Over alarm
Trouble alarm: sensor connection, low battery, circuit error
Calibration range over alarm |
| Alarm Indication |
Gas alarm: flashing light, intermittent buzzer and pulsing vibration
Trouble alarm: flashing light, intermittent buzzer and trouble type displayed |
Sampling
Method |
Diffusion |
| Response Time |
T90 in 20 seconds |
T90 in 30 seconds |
T90 in 30 seconds |
| Accuracy |
+/- 0.5% |
+/- 1.5 ppm
(up to 30 ppm) |
+/- 5 ppm
(up to 150 ppm) |
| Power Source |
One coin type lithium battery (CR 2450) |
Continuous
Operation |
Approximately 3,000 hours with no alarms or backlighting
(about 1 year of normal use) |
| Safety Rating |
CSA classified, “C/US”, as intrinsically safe. Class I, Division 1, Groups A, B, C and D. Class I, Zone 0, Group IIC. Temperature code T4. |
Display
Method |
Digital LCD with auto back light
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Dimensions
& Weight |
2.5"(w) x 1.7"(h) x 0.9"(d) / 63.5 mm(w) x 43 mm(h) x 23 mm(d)
2 ounces / 60 grams |
Operating
Temp
& Humidity |
-20 ~ 40°C, below 85% RH (non-condensing) |
Dimensions &
Weight |
71.(w) x 84(h) x 29.5(d) mm, 135 g
2.81”(w) x 3.31”(h) x 1.16”(d), 4.76 oz
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| Features |
LCD manual back light (automatic lighting during alarm)
STEL, TWA function
Peak hold
Time indication |
Attachment
Choice |
Watchband, alligator clip, belt clip, and hard hat clip |
| Warranty |
2 years material & workmanship |
Specifications subject to change without notice.
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