Greisinger GMH 3351 Humidity Meter with Data Logger Function 478450

Precise monitoring of relative humidity and temperature is essential in many industrial and laboratory environments. The Greisinger GMH 3351 is a handheld hygrometer that combines accurate measurement with data logging capability, allowing you to record and analyze environmental conditions over time.

Who is it for

This instrument is suitable for professionals in HVAC, food storage, pharmaceuticals, and research who need reliable humidity and temperature readings with the ability to log data for later review.

Main features

• Measures relative humidity from 0.0 to 100.0 % RH with 0.1 % resolution
• Measures temperature from -25.0 to +70.0 °C with 0.1 °C resolution
• Calculates dew point, wet bulb temperature, absolute humidity, and enthalpy
• Data logger stores up to 16,000 values with adjustable interval from 1 second to 24 hours
• Min/Max memory, Hold, Auto-Hold, and offset/slope correction functions
• 4½ digit LCD display and serial RS232 interface via 3.5 mm jack
• Powered by 9V battery or external 10.5-12V DC supply
• Front panel protection class IP65

Specifications

• Relative humidity accuracy: ±2.5 % RH (10-90% RH, 10-40°C)
• Temperature accuracy: ±0.5 °C (0-50°C)
• Operating temperature: -25 to +70 °C
• Battery life: approx. 200 hours without backlight
• Sensor type: external, interchangeable humidity/temperature sensor (sensor not included)

Tips

For accurate measurements, connect a compatible external sensor and allow it to stabilize. Use the data logger function to monitor conditions over extended periods, and transfer data to a PC via the serial interface for analysis.