Reliable oxygen checks matter when gas mixtures need clear, repeatable control. This handheld O₂ analyzer measures oxygen concentration in gases and air, making it suitable for immersion gas control, recreational diving gas, protective gases and inert gas measurements.
The robust housing supports mobile use in demanding conditions with ingress protection (IP) IP65 / IP67 for the device housing and IP54 for the sensor. A 3-line illuminated LCD with rotatable overhead display keeps values easy to read, while hold, and min/max on ECO 410, help with practical field measurement.
Two sensor versions let you match the instrument to the application: GOEL 370 is recommended for 0.2 ... 35.0 % vol. O₂, while GOEL 381 covers low-O₂ and high-percentage oxygen mixtures across 0.0 ... 100.0 % by volume O₂. The ECO 410T adds MOD calculation for Nitrox up to 36 %, supporting an additional control step for sport diving applications.
GOEL 370 is intended for diving gas and protective gases with increased CO2 content. GOEL 381 is intended for low-O₂ or high-percentage oxygen mixtures with low CO2 content.
The instrument uses a 3-line segment LCD with battery status symbols, adjustable white backlight and a display orientation that can rotate by 180°.
ECO 410 provides min/max and hold functions. ECO 410T provides hold and an auxiliary display for MOD in meters or feet.
The device supports air adjustment at the touch of a button using ambient air at 20.9 vol. % O₂, with air pressure entered in hPa for correct calculation.
Operation uses 2 AA alkaline batteries, with configurable automatic power-off and configurable backlight shut-off.
The sensor connects via an approx. 0.95 m cable with jack plug and elastic protective cover. The process connection is M16x1.
| Type of media |
Gas, Standard for diving gas for recreational diving, protective gases with increased CO2 content and much more
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|---|
| Oxygen concentration |
0...100 % O₂
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|---|---|
| Sensor lifetime |
at 20.9% O₂ by volume approx. 2 years
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| Sensor protection |
IP54
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| Operating temperature |
-20...+50 °C - Sensor: 0 … 45 °C (recommended 5 … 30 °C)
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|---|---|
| Operating relative humidity |
0...95 %RH - short-term condensation possible
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| Condensation |
permitted
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| Storage temperature |
-20...+50 °C
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| Degree of protection case |
IP65, IP67
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| Dimensions |
108 mm x 54 mm x 28 mm
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|---|---|
| Weight |
175 g
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| Materials |
ABS, Polyester, Case/housing: break-proof ABS, front panel: polyester
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| Power consumption |
0.8 mA, 2.8 mA with backlight
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|---|---|
| Battery life |
3000 h
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| Battery life description |
> 3000 h typ. continuous operation (without backlight)
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| Battery type |
Battery 2x AA alkaline
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| Cable |
0.95 m
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|---|
| Connection dimension |
M16x1
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|---|
| Description |
3-line with battery status indicator, Backlight, protected by shatterproof screen, overhead display at the push of a button
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|---|---|
| Display presence |
Yes
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| Display range |
Multi-row
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| Number of controls |
4
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| Type of controls |
4 Button
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| Display type |
LCD backlit
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| Delivery includes |
GOEL 381 (Article No.: 610035, Ordercode: GOEL381), GKK 252 (Article No.: 601056, Ordercode: GKK252), ESA 369 (Article No.: 603058, Ordercode: ESA369), ZOT 369 (Article No.: 603094, Ordercode: ZOT369), GZ-5826 (Article No.: 482473, Ordercode: GZ-5826), GB-AA-2 (Article No.: 479249, Ordercode: GB-AA-2)
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