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UEi HUB8 Smart Refrigerant Probes Kit with Vacuum Gauge for Refrigerant Evacuation and Charging
UEi HUB8 Smart Refrigerant Probes Vacuum Gauge Kit

UEi HUB8 Smart Refrigerant Probes Kit with Vacuum Gauge for Refrigerant Evacuation and Charging

Part Number: HUB8
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The UEi HUB8 is a kit of 8 wireless smart refrigerant probes to easily and efficiently evacuate and charge both residential and commercial A/C systems. The HUB8 Smart Refrigerant Probes Kit is the most complete and convenient wireless refrigeration probe kit including 2 hygrometers, 2 pressure probes, 2 pipe clamps, 1 outdoor temperature probe, and 1 vacuum gauge probe.
Retail Price:$799.95
On Sale: $679.96
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UEi HUB8 Smart Refrigerant Probes Vacuum Gauge Kit


The UEi HUB8 is a kit of 8 wireless smart refrigerant probes to easily and efficiently evacuate and charge both residential and commercial A/C systems. The HUB8 Smart Refrigerant Probes Kit is the most complete and convenient wireless refrigeration probe kit including 2 hygrometers, 2 pressure probes, 2 pipe clamps, 1 outdoor temperature probe, and 1 vacuum gauge probe. This UEi wireless refrigerant vacuum gauge kit allows you to view all indoor and outdoor AC/R system parameters from one location. The free intuitive “UEI HUB” App when downloaded to a smart device, will allow you to easily view system refrigerant charging calculations, temperature split and psychrometric calculations, dual mode vacuum screen for evacuation and rise tests, real time superheat calculation with easy drag and drop probe connections. The user friendly app is easy to read and navigate when needing to adjust or view measurement information. The wireless technology is up to 350 ft. connectivity range depending on environmental conditions.

Key Features


  • Wireless Vacuum Gauge probe
  • Pressure Probes with 180º rotation for tight spaces
  • Refrigerant pass through port on pressure probes
  • Wireless pipe clamps
  • System refrigerant charging calculations
  • Dual mode vacuum screen for evacuation & rise test
  • Wireless distance of 350ft depending on environment
  • Easy drag and drop probe connections
  • Real time target superheat calculation
  • Temperature split and psychrometric calculations

Overview of the probes included in the UEi HUB8 Smart Probes Refrigeration Kit


Wireless Vacuum Gauge Probe (1)
  • Range 0-20,000 Microns
  • 1 micron resolution, ± 5% reading ±5 micron accuracy
  • Oil contamination and sensor failure detection
  • Instant warm-up and response time
  • ¼” Nickel-plated flare fitting
  • 45º coupler included

Wireless Pressure Probes (2)
  • Pass through refrigerant port for easily adding or recovering refrigerant from the system without disconnecting probes
  • 180º rotation for easy use in cramped spaces.
  • Range 0-725 psig, resolution 0.1 psi.
  • Accuracy 0.5% FS (@25 ±3 C), total 1% FS

Wireless Pipe Clamps (2)
  • Sensor is thermally isolated from ambient temperatures
  • High accuracy thermistor provides better results than thermocouples and doesn’t require field calibration
  • Slim design fits into tight spaces
  • Range 32º to 176º F (0º to 80º C), resolution 0.1º F.
  • Response time, <30 sec. Accuracy ±0.6º F (±0.3ºC).

Wireless Hygrometer Probes (2)
  • Slimmest ¼” hygrometer probe means smaller drill holes.
  • Magnetic mount and locking probe holds WHP1 to plenums for hands-free operation.
  • Temp range: 32º to 140º F (0º to 60º C), Accuracy: ±0.5º F (±0.3º C)
  • Relative Humidity: 0 to 100% (0.1% resolution, ±3% accuracy from 20 to 80% ±5% otherwise).

Wireless Outdoor Temperature Probe (1)
  • Temperature range 32º – 180º F (0º – 82º C)
  • Magnetic hanger allows for temperature measurement in direct air stream.
  • Compact light weight design

The UEi HUB free Intuitive App features the following measurement and calculations:
  • Liquid and suction line pressures, temperatures, saturation and outdoor dry bulb
  • Superheat, subcooling and target superheat
  • Delta and target delta temperatures
  • Air return and supply relative humidity, dry bulb, wet bulb, dew point, and enthalpy
  • Vacuum & deepest vacuum
  • Evacuation and rise limit target, timer
  • H2O saturation point indication
  • Selectable units of measure
  • High altitude compensation
  • 57 refrigerants list and favorites refrigerant menu.

What’s Included in the UEi HUB8 Box?


  • 2 Wireless Hygrometer Probe (WHP1)
  • 2 Wireless Pressure Probe (WPP1)
  • 2 Wireless Pipe Clamp Sensor (WPC2)
  • 1 Wireless outside Temperature probe (WOT2)
  • 1 Wireless Vacuum Gauge (WVG2)
  • Batteries (10) x AA,
  • Batteries (4) x AAA
  • 1 45” Coupler
  • 1 Carrying Case

Other UEi HUB kits available:
  • UEi HUB6 Smart Refrigerant Charging AC System Diagnostic Kit
  • UEi HUB4 Smart Refrigerant Charging AC System Diagnostic Kit
  • UEi HUB2 Smart In Duct Psychrometer Probe Kit
Check out UEi HUB app.

This is available on the HUB2, HUB4, HUB6, and HUB8.

The Android version of the APP used with the HUB is available on Google Play.

The iOS version of the APP (1.3) used with the HUB is now available on the App Store.


UEi HUB2, HUB4, HUB6, and HUB8 app

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