HHEM-SD1 Handheld Air Speed, Temp, RH & Light Meter

Supported Applications

The Omega HHEM-SD1 is a general-purpose handheld environment meter designed for measuring air speed, air temperature, humidity, and light level. The series supports simultaneous measurement of air (wind) speed and temperature, as well as air temperature and humidity using the included multi-function probe. With optional accessories, the device extends to surface temperature measurements via Type K or Type J thermocouples and sound level monitoring with a dedicated sound level probe.

Operating Conditions & Performance

The HHEM-SD1 features a 2.5-inch diagonal green backlit LCD for display of readings, including maximum and minimum values. The instrument automatically logs measurements to an SD memory card at sampling intervals settable from one second to one hour; it also supports manual datalogging and changing the storage location on the card. Data is output as Excel-compatible .xls files.

Measurement ranges include:

• Air speed: m/s, fpm, km/h, knots, mph
• Air temperature: °F or °C
• Humidity: %RH
• Light level: lux or ft-cd

The device includes an auto power-off function and accepts SD memory cards of up to 16 GB capacity.

Configuration Options

The HHEM-SD1 is powered by six "AA" Alkaline batteries or an optional 9VDC AC adapter compatible with 110V or 220V power supplies. The unit includes a carrying case, the multi-function probe (temperature, humidity, air speed, light level), and a 2 GB SD memory card.

Key configurable options and accessories include:

• Sound level probe and plug adapter
• Type K or Type J thermocouples for surface temperature measurement
• 9VDC adapter for 110V or 220V power supply

The front panel includes a socket for the multi-function probe or optional sound level probe, and a separate socket for Type K or J thermocouple thermometers. Connectivity features an SD card socket (labeled 1-9) and an RS-232 output jack (labeled 1-10). The unit is ISO 9001 Certified.

Key Product Differences

The HHEM-SD1-Series consists of the single model HHEM-SD1, supplied fully assembled in a carrying case. Functional variations are achieved through optional accessories rather than distinct base models: surface temperature measurement requires Type K or J thermocouples, and sound level monitoring requires the specific sound level probe and plug adapter.