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Yuanheng International Co., Ltd.

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BrandBW
OriginCanada
ModelGAMAX-XT4
TypePortable Pumped Multigas Detector
Response Time<15 s (typical, per sensor)
Repeatability±2% of reading (H₂S, CO, O₂, combustible gas)
Gas ChannelsH₂S (0–200 ppm), CO (0–1000 ppm), O₂ (0–30.0% vol), Combustible (0–100% LEL or 0–5.0% v/v)
Resolution1 ppm (H₂S, CO), 0.1% vol (O₂), 1% LEL / 0.1% v/v (combustible)
Dimensions13.1 × 7.0 × 5.2 cm
Weight316 g
Operating Temp.–20 to 50 °C
Humidity10–95% RH (non-condensing)
IP RatingIP66/IP67
CertificationsATEX II 1G Ga Ex ia IIC T4, IECEx Ga Ex ia IIC T4, CSA Class I, Div. 1, Groups A, B, C, D
Alarm TypesVisual (LED strobe), Audible (95 dB), Vibration
Pump Draw DistanceUp to 20 m
Data LoggingInternal event & sample logging with time stamp
ComplianceMeets IEC 61508 SIL 2 (for safety functions), EN 45544-1, EN 45544-2, and supports GLP/GMP audit trails via Fleet Manager II
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BrandHoneywell BW
OriginCanada
ModelUltra
TypePortable Multi-Gas Detector
Detection Capacity5 gases (4 standard + 1 optional)
Response Time<1 second (T90)
Repeatability±2% of reading (typical, per sensor)
Dimensions14.8 × 8.5 × 4.0 cm
Weight411 g
Operating Temperature−20 °C to +50 °C
Operating Humidity5–95% RH (non-condensing)
Ingress ProtectionIP66/IP68
Alarm TypesVisual (LED + large-dot matrix LCD), Vibration, Audible (95 dB)
Battery LifeUp to 18 h at −20 °C (14 h with PID or IR sensor)
Pump Suction Distance22.9 m
Data Logging30 alarm events + 10 bump test events
CertificationsCSA Class I, Div 1, Groups A–D
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BrandBW
OriginCanada
ModelGasAlert MCXL-4
TypePortable Multigas Detector
Response Time<15 s (T90)
Detection GasesH₂S (0–100 ppm), CO (0–500 ppm), O₂ (0–30.0% vol), Combustible Gas (0–100% LEL or 0–5.0% v/v)
Resolution1 ppm (H₂S, CO), 0.1% vol (O₂), 1% LEL / 0.1% v/v (Combustible)
Operating Temperature–20 to +58 °C
Humidity Range0–95% RH (non-condensing)
IP RatingIP66/IP67
Battery LifeUp to 12 h (typical, Li-polymer)
Charging Time<3 h
Alarm TypesVisual (bright LED strobe), Audible (95 dB), Vibration
ComplianceCSA/UL Class I Div 1, ATEX II 1G Ex ia IIC T4 Ga, IECEx Ex ia IIC T4 Ga, UKCA, RoHS, REACH
CalibrationAuto-bump test & calibration compatible with BW MicroDock II system
Data LoggingInternal event logging (alarm triggers, calibration events, bump tests, faults)
DisplayBacklit LCD with real-time gas concentration readouts
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BrandBW
OriginCanada
ModelQT
TypePortable Multigas Detector
Response Time<15 s (T90)
Detection GasesH₂S (0–200 ppm), CO (0–1000 ppm), O₂ (0–30.0% vol), Combustible Gas (0–100% LEL or 0–5.0% v/v)
Resolution1 ppm (H₂S, CO), 0.1% vol (O₂), 1% LEL / 0.1% v/v (Combustible)
Operating Temperature−20 to +50 °C
Humidity Range10–95% RH (non-condensing)
Dimensions13.0 × 8.1 × 4.7 cm
Weight316 g (rechargeable battery), 338 g (alkaline)
Alarm TypesVisual (6 red LEDs, IntelliFlash beacon), Vibration, Audible (95 dB @ 30 cm)
Battery Life14 h (alkaline, 20–50 °C), 20 h (rechargeable, 20–50 °C), 18 h (rechargeable, −20–0 °C)
ComplianceCSA/UL Class I Div 1, ATEX II 1G Ex ia IIC T4 Ga, IECEx ia IIC T4 Ga, UKCA, RoHS, REACH
Data LoggingInternal event and exposure history (≥5,000 records), time-stamped, with user-accessible USB export
CalibrationAuto-bump test & calibration via MicroDock II docking station
Cross-Sensitivity MitigationEnhanced CO & H₂S sensor algorithms for reduced interference from methanol, ethanol, and other common VOCs
Language SupportEnglish, French, German, Spanish, Portuguese
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