GW-3 Series

Personal gas detection in the shape of a wristwatch with this wearable portable gas monitor. Weighing just 45g, it is among the world's smallest and lightest single-gas monitors. Don't let its compact size fool you - it packs the performance, durability and explosion- and water-proof design needed to keep you safe in any work environment.

GW-3 Series

Feature01

Among the world's smallest, lightest gas monitors

The ultra-compact design of the GW-3 Series gives you the flexibility to wear it however you like. Wear it on your wrist as a watch, or attach it to an armband to wear it on your arm, or clip it to your hard hat. Clip it to your shirt collar near your breathing zone for even better protection. Weighing just 45 grams, it won't get in the way of your work, so you can focus on getting the job done.

Feature02

Portable gas monitors built to endure the toughest conditions

Small yet highly durable.
IP66 and 68 rating
Drop test height: 2m
Explosion proofing: ATEX/IECEX certified

Feature03

High-Performance Monitoring in a Compact Form

Can be used at a wide range of temperatures: temporarily for up to about 15 minutes in an environment of -20℃ to +60℃, or continuously in an environment of -20℃ to +50℃. Our new carbon monoxide sensor provides protection practically free from hydrogen interference.

Three-step alarm
Quick & easy calibration
Data logger
Simultaneous display of gas concentration & time

Product Name	GW-3(OX)	GW-3(HS)	GW-3(CO)	GW-3(C-)	GW-3(CX)
Product Image
Product Subtitle	Portable Gas Monitor	Portable Gas Monitor	Portable Gas Monitor	Portable Gas Monitor	Portable Gas Monitor
Product Type	Portable Gas Detector	Portable Gas Detector	Portable Gas Detector	Portable Gas Detector	Portable Gas Detector
Industries	Infrastructure, Sustainable Energy, Marine, Oil & Gas, Steel	Infrastructure, Sustainable Energy, Marine, Oil & Gas, Steel	Infrastructure, Sustainable Energy, Marine, Oil & Gas, Steel	Infrastructure, Sustainable Energy, Marine, Oil & Gas, Steel	Infrastructure, Sustainable Energy, Marine, Oil & Gas, Steel
Use Purpose	Safety management	Safety management	Safety management	Safety management	Safety management
Single/Multi	Single	Single	Single	Single	Multi
Certification	Japanese Certification, IECEx, ATEX, China Ex (China), JIS	Japanese Certification, IECEx, ATEX, China Ex (China), JIS	Japanese Certification, IECEx, ATEX, China Ex (China), JIS	Japanese Certification, IECEx, ATEX, China Ex (China), JIS	Japanese Certification, IECEx, ATEX, China Ex (China), JIS
Detectable Gas	O2	H2S	CO	CO with H2 Elimination	CO & O2 Dual
Detection Range	0.0 to 25.0 vol%	0.0 to 100.0 ppm	0 to 500 ppm	0 to 500 ppm(0 to 2000 ppm）	0 to 500 ppm (0 to 2000 ppm) (CO) 0.0 to 25.0vol％ (0.0 to 40.0 vol％) (O2）
Principle of Detection	Potentiostatic Electrolysis Method	Potentiostatic Electrolysis Method	Potentiostatic Electrolysis Method	Potentiostatic Electrolysis Method	Potentiostatic Electrolysis Method
Sampling Method	Diffusion	Diffusion	Diffusion	Diffusion	Diffusion
Ingress Proof Rating	IP66/68 (2m, 1h)	IP66/68（2m, 1h）	IP66/68（2m, 1h）	IP66/68（2m, 1h）	IP66/68（2m, 1h）
Dimensions	Approx. 63 (W) x 42 (H) x 22 (D) mm (excluding projections)	Approx. 63(W)×42(H)×22(D) mm (excluding projections)	Approx. 63(W)×42(H)×22(D) mm (excluding projections)	Approx. 63(W)×42(H)×22(D) mm (excluding projections)	Approx. 63(W)×42(H)×22(D) mm (excluding projections)
Weight	Approx. 45g	Approx. 45 g	Approx. 45 g	Approx. 45 g	Approx. 45 g
Remarks
Power Source	CR2450 Coin Type Lithium Ion Battery	CR2450 Coin Type Lithium Ion Battery	CR2450 Coin Type Lithium Ion Battery	CR2450 Coin Type Lithium Ion Battery	CR2450 Coin Type Lithium Ion Battery
Continuous Operation	Approx. 2000 Hours	Approx. 4000 Hours	Approx. 4000 Hours	Approx. 2500 Hours	Approx. 2000 Hours
Operating Temperature Range	-20 ℃ to +60 ℃ (no sudden changes)	-20 to +60℃ (no sudden changes)	-20 to +60℃ (no sudden changes)	-20 to +60℃ (no sudden changes)	-20 to +60℃ (no sudden changes)
Operating Humidity Range	0 to 90 %RH (no condensation)	0 to 95%RH (no condensation)	0 to 95%RH (no condensation)	0 to 95%RH (no condensation)	0 to 95%RH (no condensation)
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