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Handheld for Temperature, Humidity and Flow - Discontinued

HH-USD Series

 | HH-USD Series

CAD455.00 HH-USD

1 year warranty CE
  • Large Color OLED Display
  • USB Interface
  • Modular Design
  • Relative Humidity and Temperature Probe
  • Air Velocity and Temperature Probe
  • Data Logger
  • Wireless Probe Options
  • Interchangeable Probes with Automatic Instrument Recognition
  • LED Status Light
  • SD Memory Card Data Storage
  • 5 Languages Standard (English, German, Spanish, Italian, Portuguese)
Relative Humidity Measurement Instruments - View related products


The HH-USD series has been discontinued. Please see the HHEM-SD1 Series as a possible alternative or contact our Flow Engineering department.

The HH-USD universal handheld test instrument is a highly versatile meter that offers the utmost flexibility and ease of user operation by having the capacity to work with a variety of compatible sensing modules and probes. Additional wired and wireless probes or modules are instantly recognized by the HH-USD without any user reprogramming or alteration, allowing seemless sensor addition, upgrade or replacement. The HH-USD offers a slew of features that enable a user to quickly set-up and intuitively navigate through their daily activities. Data is stored via the internal memory or separate SD card in various auto or manual logging operations. Logged files can be quickly transferred to a device through a USB cable or by a portable SD card. The bright OLED display can operate in standard numerical meter mode, gage mode with analog needle, gage mode with additional pass/ fail operation zones, and strip chart mode which enables a simplified visual tracking of the process. The four directional buttons, combined with the three soft key buttons aligning to corresponding screen functions, allow for quick navigation through the four main operation menus. The rugged plastic case with protective thermo-plastic over-mold, along with the dust-shielding rubber caps, permit the unit to handle abuse and properly withstand dusty environments. The base HH-USD includes an integral molded compartment that securely holds wireless modules. The storage compartment offers convenient transportation of a module with the base instrument during testing. A flexible hand strap included with every HH-USD provides means for the base handheld to be safely connected to a belt, pipe, ladder or similar structure freeing the user’s hands to focus on the sampling test. A 6-pin connector enables one wired probe at a time to be plugged in to the base instrument without worry of becoming disconnected during sampling. The rechargeable battery via the included USB cable provides long term operation to last through several days work. At just under 283 g (10 oz), the compact HH-USD base is lightweight. Included with the HH-USD is a soft carrying case which secures the provided accessories and added test probe.

Languages: English, German, Spanish, Italian, Portuguese
Display: OLED (organic LED), color 240 x 320
Temperature Limits: -15 to 51°C (5 to 125°F)
Note: When using wireless function: -6 to 51°C (20 to 125°F)
Battery Charging Limits: 0 to 45°C (32 to 113°F)
Resolution: 1 FPM, 0.1 MPS, 0.1 CFM and M3/HR; 0.1°F and °C; RH 0.1%
Units Air Velocity: FPM, MPH, KN, M/H, M/S K/H, FPS
Units Flow: CFM, M3/HR, M3/S, GPM, GPH, GPD, LPS, LPM, LPH
Units Temperature: °F, °C
Housing: Thermoplastic elastomer over polycarbonate
Power Requirements: Rechargeable lithium ion polymer via USB
Maximum Wireless Distance: 15 m (50')
Weight: 283 g (10 oz)
Thermo-Hygrometer Probe Specifications
Service: Humidity, temperature, wet bulb and dew point temperature detection in clean air
Temperature Limits:
    Process: -40 to 80°C (-40 to 176°F)
    Ambient: -15 to 51°C (5 to 125°F)
Range Relative Humidity: 0 to 100% (non-condensing)
Accuracy Relative Humidity: ±2% FS over 10 to 90% @ 25°C (77°F)
Range Temperature: -28 to 60°C (-20 to 140°F)
Accuracy Temperature: ±0.3°C @ 25°C (±0.9°F @ 72°F)
Handle Enclosure: Thermoplastic elastomer over polycarbonate
Probe Length: 203 mm (8") insertion
Cable Length: 71 cm (28") retracted, 183 cm (6') extended
Supplied With: Wrist strap
Thermo-Anemometer Probe Specifications
Service: Air velocity and temperature of clean, dry air
Temperature Limits:
    Process: -29 to 100°C (-20 to 212°F)
    Ambient: -15 to 51°C (5 to 125°F)
Range Air Velocity: 0 to 6000 FPM (0 to 30 m/s)
Accuracy Air Velocity: ±3% FS within temperature range of 4 to 32°C (40 to 90°F)
Range Volumetric Air Flow: 999,999 in selected flow units.
Range Temperature: -29 to 100°C (-20 to 212°F)
Accuracy Temperature: ±0.28°C (±0.5°F)
Handle Enclosure: Thermoplastic elastomer over polycarbonate
Probe Length: 203 mm (8") insertion
Cable Length: 71 cm (28") retracted, 183 cm (6') extended
Supplied With: Wrist strap
Place Order(Specify Model Number)
Part Number/ Desc.
Consult Sales  
Universal handheld test instrument, base unit, no probes
Availability: 1 week
Air quality test instrument with base unit HH-USD and HH-USD-RP1 thermo hygrometer and temperature probe; measures relative humidity, temperature, dewpoint and wet bulb temperature
Consult Sales  
Air quality test instrument with base unit HH-USD and HH-USD-AP1 thermo anemometer probe measures air velocity, volumetric air flow and temperature
Availability: 1 week
Thermo anemometer air velocity and temperature probe with coiled cable
Availability: 1 week
Thermo hygrometer humidity and temperature probe with coiled cable
Consult Sales  
Wireless thermo anemometer air velocity and temperature probe with coiled cable
Availability: 1 week
Wireless thermo hygrometer humidity and temperature probe with coiled cable
Consult Sales  
Spare hand strap
Consult Sales  
Spare dual USB wall or auto charger with international adaptors
Consult Sales  
Optional dual USB charger with North American adaptor (1.5 A)
Availability: 1 week
Spare USB cable, 1 m (3.2')
HH-USD-C1 Star
Consult Sales  
Spare soft carrying case
HH-USD-C2 Star
Availability: 1 week
Heavy-duty hard carrying case with pre-cut foam inserts for additional sensor storage
2GB-SD Star
Consult Sales  
2 GB SD card
All dollar amounts on this site are shown in Canadian currency. Note: The HH-USD comes complete with USB interface cable, charger with international adaptors, soft carrying case, hand strap, and operator’s manual.