Hands Free Single Gas Monitor

 

 

 

 

 

 

 

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!

 

 

 

 

 

 

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)
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
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
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