Dwyer Model UHH Universal Handheld Test Instrument


Dwyer Model UHH Universal Handheld Test Instrument

Versatile Base Can Combine with Multiple Probes and Modules

The Model UHH Universal Handheld Test Instrument is a highly versatile instrument that offers the utmost flexibility and ease of user operation by having the capacity to work with a variety of Dwyer Instruments, Inc. compatible sensing modules and probes. Additional wired and wireless probes or modules are instantly recognized by the UHH without any user reprogramming or alteration, allowing seemless sensor addition, upgrade or replacement. See the AQTI/AQTIP Series in the Dwyer Instruments, Inc. catalog or website www.dwyer-inst.com for available packages and sensors.

The Universal Handheld offers a slew of features that enable a technician 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 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 UHH 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 UHH 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 10 oz, the compact UHH base is lightweight. Included with the UHH is a soft carrying case which secures the provided accessories and added test probe.


English, German, Italian, Portuguese, Spanish.
OLED, color 240 x 320.
Temperature Limits:
5 to 125°F (-15 to 51°C); Note: When using wireless function: 20 to 125°F (-6 to 51°C).
Battery Charging Limits:
32 to 113°F (0 to 45°C).
1 FPM, 0.1 MPS, 0.1 CFM & M3/HR; 0.1°F & °C; RH 0.1%.
Units Air Velocity:
Units Flow:
Units Temperature:
°F, °C.
Thermoplastic elastomer over polycarbonate.
Power Requirements:
3 V BR1225 lithium metal battery, installed functional, nonreplaceable and 3.7 V lithium ion battery, installed functional, non-replaceable. (Note: Intended to be operated with power cables less than 3 m in length).
Maximum Wireless Distance:
50' (15 m).
10 oz (283 g).
Agency Approval:
CE (not while charging), FCC compliant.


  • UHH base quickly recognizes various wired or wireless probes and modules - eliminates need to have many test instruments on hand, reducing time to complete job.
  • Easy navigation through 4 menus via directional arrow buttons and 3 soft keys.
  • Large color display can operate in 4 process reading modes. See views of each mode on next page.
  • Inherent rubber overmold housing combed with protective caps enable units to withstand abuse in dusty environments.
  • Integral strap clips allow units to be secured during testing with included hand strap to a belt, pipe, ladder, etc. providing hands free operation.
  • LED status light transmits visual feedback when unit’s long lasting lithium battery is being charged by the USB connection. Also indicates when a data point is stored.
  • Manual or automatic data logging modes include several adjustable parameters that enable the user to obtain readings in a multitude of potential test scenarios.
  • Internal memory or expanded memory with portable SD card provides ample data logging capacity. Data is transferable via the USB connection or by removing the SD card and inserting into compatible SD card device.
  • Flexible ordering allows customization to fulfill personal needs by ordering UHH and additional probes a-la-carte or by pre-set test kits in the AQTI and AQTIP Series. See the AQTI page.


  • UHH Included Accessories:
    UHH-STRAP: Hand strap.
    UHH-ICHRG:Dual USB wall or auto charger with international adapters.
    UHH-CBL: 3.2 ft (1 m) USB cable.
    UHH-C1: Soft carrying case.

Product Literature


Sold Out
Product Images (click to enlarge)
  • Dwyer Model UHH Universal Handheld Test Instrument