GFG G450 可燃四合一气体检测仪

- Range:
+ LEL (0 … 100% LEL)
+ O2 (0 … 25% VOL)
+ H2S (0 … 100 ppm)
+ CO (0 … 300 ppm)     


Size 2.95 x 4.33 x 2.17 in.

Weight 10oz with O2, LEL, CO, H2S 14oz with above plus IR, CO2, or PID

Humidity 5% to 95% RH (non-condensing)

Temperature -4 to +131oF

EMI/RFI Complies with EMC Directive 89/336/EEC

IP Rating IP67

Number of buttons 3

Gases offered NH3, CO2, CO, Cl2, ClO2, LEL (Catalytic), LEL (Infrared), ETO, H2, HCl, HCN, HF, H2S, NO, NO2, O2, O3, COCL2, PH3, PID (VOC), SiH4, SO2

Maximum sensors used 6 (7 if used with motorized sample pump)

Battery types and run time (2) Two AA Alkaline batteries or Rechargable NiMH battery pack up to 25 hours

Wireless capable No


Adjustable alarm set points Yes - 3 user configurable alarm settings

Visual Bright 360owrap around LEDs, plus heterochromatic green/orange/red backlit display

Vibrating Yes

Audible 103dB or 95dB

IntelliFlash No

Certifications and approvals Class I, Div. 1, Gr. A,B,C,D, T3. Class I, Zone 0


Datalogging 55 hours @ 2 minute intervals - user configurable. Optional Micro SD card for expanded datalogging

Pump Available Yes - Attachable motorized sample pump operable in diffusion or sample draw mode while attached.

Pump Max draw 100ft+

Warranty Lifetime on instrument and electronics. Two year warranty on most sensors. Three years on LEL (catalytic and IR), O2, CO, H2S, IR (CO2) sensors. Optional 6 year sensor warranty available.

Bump/Calibration Test Station Yes



Technical Data
Gases / warranty
Combustible gases (CH4)
Oxygen (O2)
Carbon monoxide (CO)
Hydrogen sulfide (H2S)
COSH (dual channel CO and H2S sensor)
Audible - 103 dB at 30 cm
(restrictable to 95 dB)
Visual - Bright, rotating 360° LEDs, plus
heterochromatic backlit display
Vibrating alarm
Detection range and resolution
0-100% LEL 0.5%
CH4 0-5% volume 0.05%
O2 0-25% volume 0.1%
CO 0-300 ppm 1 ppm
H2S 0-100 ppm 1 ppm
COSH CO (0-300 ppm) and
H2S (0-100 ppm)
1 ppm
IP 67 (dust and highly water resistant)
Datalogging kit
Self powered detachable sample pump (run-time up to 25 hours)
Spare battery cartridges (alkaline or rechargeable)
Rechargeable (NiMh) battery cartridge with optional LED flashlight
Expected sensor lifetime
CH4 3-5 years
O2 3 years
CO up to 4 years
H2S 3 years
COSH 3 years
0.62 pounds (280 g)
4.4x2.6x2 inches (66x11.8x50.8 mm) (HxWxD)
Rating and certifications (intrinsic safety)

Class I, Division 1, Group A, B, C, and D
Hazardous locations Temp code T3
Operational time
Up to 25 hours
Charge time
4 hours with rechargeable NiMh cartridge
Power source
2 "AA" batteries or
rechargeable NiMh battery cartridge
Temperature range
-4° to +122°F (-20 to 50°C) ambient
5 to 95% r.h. (non-condensing)
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