Greisinger GMH3161-002 Differential Pressure Meter for Air and Gases, -0.005 to +0.005 bar 604215

Measuring very low differential pressures in air and gases is difficult with ordinary gauges—they lack the resolution or stability needed for cleanroom monitoring, filter testing, or leak detection. The Greisinger GMH3161-002 solves this with a dedicated differential pressure meter that reads from -0.005 to +0.005 bar with 0.1 Pa resolution.

Who is it for

HVAC technicians, laboratory staff, and industrial maintenance teams who need to verify pressure drops across filters, measure draft or static pressure, or test pneumatic systems with non-aggressive or corrosive gases.

Main features

• Differential pressure measurement from -500 to +500 Pa (-0.005 to +0.005 bar)
• High resolution of 0.1 Pa for fine pressure changes
• Accuracy of ±0.2% FS ±1 digit at 25°C
• Selectable units: Pa, hPa, kPa, MPa, mbar, bar, PSI, mmHg, cmHg, mH2O, inH2O, ftH2O, inHg, kg/cm²
• Internal stainless steel sensor compatible with air, non-aggressive gases, and corrosive gases
• Min/Max, Hold, Tare, Zero, Auto-Off, and offset/slope correction functions
• 4½ digit LCD display with clear readings
• Serial interface via 3.5 mm jack for data logging
• Powered by a 9V block battery with approximately 150 hours of battery life
• IP65 front panel protection for dusty or damp environments

Specifications

• Measurement range: -500 to +500 Pa (-0.005 to +0.005 bar)
• Resolution: 0.1 Pa
• Accuracy: ±0.2% FS ±1 digit (at 25°C)
• Compatible media: Air, non-aggressive gases, corrosive gases
• Sensor type: Internal, stainless steel
• Display: 4½ digit LCD
• Pressure connection: 2 universal nipples for 6x1mm or 4x1mm hoses
• Overload protection: max. 1000 hPa (1 bar)
• Operating temperature: 0 to +50 °C
• Storage temperature: -20 to +70 °C
• Power supply: 9V block battery
• Battery life: approx. 150 hours
• Interface: Serial (3.5 mm jack)

Tips

For best accuracy, allow the meter to warm up for a few minutes before zeroing. Use the tare function to compensate for static pressure offsets in your test setup. The universal nipples accept both 6x1mm and 4x1mm hoses, so you can connect to most existing tubing.