Greisinger GMH 3611-GL Oxygen Meter for Pressure, O2 Concentration, O2 Saturation (610882)

In environmental monitoring, water treatment, or industrial gas analysis, precise oxygen measurement is critical. The Greisinger GMH 3611-GL handheld oxygen meter delivers reliable readings of O2 concentration, partial pressure, and saturation. Connect an external galvanic oxygen sensor (not included) to the 6-pin mini-DIN socket and start measuring immediately.

Key specifications

• O2 concentration: 0.0 to 100.0 % O2, resolution 0.1 % O2
• O2 partial pressure: 0 to 1100 hPa O2, resolution 1 hPa O2
• O2 saturation: 0.0 to 100.0 % O2, resolution 0.1 % O2
• Accuracy (device only): ±0.1 % O2 ±1 digit for concentration; ±1 hPa O2 ±1 digit for partial pressure (at 25°C, 1013 hPa)
• Display: 3½ digit LCD, 13 mm high
• Power: 9V battery (IEC 6F22) or external 10.5-12V DC; battery life approx. 3000 hours with alkaline battery
• Operating temperature: 0 to +50 °C
• Interface: Serial (3.5 mm jack plug)
• Calibration: Offset and slope
• Special features: Min/Max memory, Hold, Auto-Off, automatic air pressure compensation (manual or external sensor)

Why choose it

The GMH 3611-GL offers high accuracy and versatile measurement modes in a rugged handheld design. Its automatic air pressure compensation ensures reliable readings even in changing environmental conditions. The long battery life and serial interface make it suitable for both field and lab use.

Ideal use cases

• Dissolved oxygen monitoring in water treatment plants
• O2 measurement in biogas or fermentation processes
• Ambient air oxygen checks in confined spaces
• Quality control in food packaging or modified atmosphere storage

Good to know

The sensor is not included; choose a compatible galvanic oxygen sensor with 6-pin mini-DIN connector. Calibration is straightforward with offset and slope adjustment. The front panel is IP65 protected for use in demanding environments.