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INSTRUCTION MANUAL

ENGLISH

Smart Temperature Split Kit 

Smart Refrigerant Charging Kit 

Smart Refrigerant Complete Kit

1-800-547-5740 

www.ueitest.com • email: info@ueitest.com

HUB2 / HUB4 / HUB6

WPP1

Wireless Pressure

Probe

Power

Lo-Bat

WPP1

Wireless Pressure

Probe

Power

Lo-Bat

WHP1

Wireless 

Hygrometer Probe

WHP1: 

Wireless Hygrometer Probe

WPP1: 

Wireless Pressure Probe

WPC1: 

Pipe clamp sensor

UEI HUB APP

  

WARNING

Read entire safety notes section regarding potential hazard and proper 

instructions before using these probes. In this manual the word “

WARNING

” 

is used to indicate conditions or actions that may pose physical hazards to 

the user. The word “

CAUTION

” is used to indicate conditions or actions that 

may damage these instrument. 

  

WARNING

To ensure safe operation and service of these probes, follow these instructions. 

Failure to observe these warnings can result in severe injury or death.

  

WARNING

Maximum over pressure is: 1000 PSI.

  

WARNING

•   Do not open these probes to replace batteries while the probes  

     are connected to an HVACR or other mechanical system.
•   To avoid false readings, replace batteries if a low battery indicator appears.  

•   Do not use this these probes if  they appear damaged.
•   Always adhere to national and local safety codes. Use proper personal      

    protective equipment (PPE).

 

WARNING

These probes are designed for trade professionals who are familiar with the 

hazards of their trade. Observe all recommended safety procedures that  

include proper lockout utilization and use of personal protective equipment 

that includes safety glasses, gloves and flame resistant clothing.

HUB2

2 WHP1
4 Batteries (AAA)

Carrying case

 
 
 

HUB4

2 WPP1

2 WPC1

4 Batteries (AA)

Carrying case

 

HUB6

2 WHP1

2 WPP1

2 WPC1

8 Batteries 

(4x AA, 4x AAA)

Carrying case

IMPORTANT SAFETY WARNINGS

1.

 

Hygrometer (WHP1): Hub 2 & Hub 6

 A.

   Lock Button: Press to open or close probe 

 B

.   1/4” diameter probe.

 C.

   Magnetic Mount

 D.   

Battery Cover.

 E

.   Light: Blinks 

GREEN

 when probe is powered  

       on. Blinks 

RED

 when low battery.*

 

CAUTION:

 Press down Lock Button to  

 

release probe. Failure to do so may break probe  

 

and is not covered under warranty.

GENERAL SPECIFICATIONS 

 

Temperature Range: 

32˚F to 140˚F (0˚C to 60˚C)

Temperature Accuracy:

 ±0.5˚F (0.3˚C)

Relative Humidity Range:

 

0% to 100%

Relative Humidity Resolution: 

0.1%

Relative Humidity Accuracy:

 ±3% 20% to 80% 

otherwise ±5%

Operating Temperature:

 41°F to 140°F (5°C to 60°C)

Storage Temperature:

 14°F to 140°F (-10°C to 60°C)

Operating Humidity:

  20% RH to 80% RH  

Recommended: Do Not use longer than 60  

hours out of range

Dimensions: 

 6.84 in   x  1.93 in   x  1.53 in  

(17.4 cm x 4.9 cm x 3.9 cm)

Item Weight:

  4.4 oz (125 gr)

Certification: 

 CE Conformity, FCC/IC

Battery Type:  

(AAA)  2

Battery Life:

 100+ hours

* NOTE: 

Low battery indicator is also in the  

“Tool Connection” screen

WHP1 OVERVIEW

WHP1

Wireless 

Hygrometer Probe

WHP1

Wireless 

Hygrometer Probe

2.

 

Pressure Probe (WPP1): Hub 4 & Hub 6

A.

   Cable connector plug-in: for connecting the  

      pipe clamp sensor (WPC1).

B.

   Battery cover

C.

   Light: Blinks 

GREEN

 when probe is powered  

       on and blinks 

RED

 when low battery.* 

D.

   Power Button: Hold for one second to   

       power on

E.   

1/4”pressure connector

F.    

1/4” pass-through connector

*NOTE: 

Low battery indicator is in the “Tool 

Connection” screen

GENERAL SPECIFICATIONS

Range: 

0 to 725 PSIg

Resolution: 

0.1 PSI

Accuracy: 

0.5% F.S. (at 25˚C ±3˚C) Total 1% F.S. 

32˚F to 158˚F (0˚C to 70˚C)

Operating Temperature:

 14°F to 158°F  

(-10°C to 70°C)

Storage Temperature:

  14°F to 140°F  

(-10°C to 60°C)

Operating Humidity:

  30% RH to 85% RH

Over-range:

  1000 PSI

Dimensions: 

 6.70  in x  1.56 in   x  1.44 in  

(17 cm x 4 cm x 3.7 cm)

Item Weight:

  7.4 oz (210 gr)

Certification: 

 CE Conformity, FCC/IC

Battery Type:  

(AA)  2

Battery Life:

 100+ hours

3. Pipe clamp sensor (WPC1): Hub 4 & Hub 6

A.

   Temperature sensor

B.

   Cable connector plug-in: for connecting  

       WPC1 to the WPP1.

NOTE: 

Maximum pipe diameter is 1.5 in. (3.8cm)

GENERAL SPECIFICATIONS

Range: 

32˚F to 176˚F (0˚C to 80˚C)

Resolution: 

0.1˚F

Accuracy: 

±(0.6˚F (0.3˚C))

Response Time: 

<30 sec.

Operating Temperature:

 -40°F to 185°F  

(-40°C to 85°C)

Storage Temperature:

 14°F to 140°F (-10°C to 60°C)

Dimensions: 

 5.66 in   x  3.81 in   x  1.10 in  

(14.4 cm x 9.7 cm x 2.8 cm)

Item Weight:

  2.1 oz (60 gr)

Certification: 

 CE Conformity, FCC/IC

A.

   

Home Screen:

 

Refrigerant Side

A.

   

Home Screen:

  

Air Side

UEi HUB OVERVIEW

B.

B.

A.

A.

C.

E.

D.

A.

B.
C.

D.
E.
F.

WPP1 OVERVIEW

WPC1 OVERVIEW

A.     Suction Line Pressure

B.     Suction Line Temperature

C.     Refrigerant Favorites (tap to view)

D.     Liquid Line Pressure 

E.      Liquid Line Temperature  

F.     Refrigerant List (tap to view)

G.    Air Side Screen (tap or swipe  

        left to view)

H.    Vapor Saturation Temperature 

I.      Liquid Saturation Temperature

A.     Refrigerant Side Screen (tap or  

         swipe right to view)
B.     Delta T
C.     Target Delta T (assumes  

         400 CFM/ton)
D.     Return Dry Bulb Temperature 

E.     Return Wet Bulb Temperature 
F.     Return and Supply Calculations  

         (tap to view)     
G.     Supply Dry Bulb Temperature 

H.     Supply Wet Bulb Temperature

Hub

Refrigerant Side

Air Side

Line Pressure

Line Temp

select tool

select tool

Suction

--.--°F

Vapor 
Saturation

--.--°F

Superheat

Line Pressure

Line Temp

select tool

select tool

Liquid

--.--°F

Liquid
Saturation

--.--°F

Subcooling

R507A

Hub

Refrigerant Side

Air Side

Line Pressure

Line Temp

select tool

select tool

Suction

--.--°F

Vapor 
Saturation

--.--°F

Superheat

Line Pressure

Line Temp

select tool

select tool

Liquid

--.--°F

Liquid
Saturation

--.--°F

Subcooling

R507A

A.

F.
G.

I.

H.

B.

C.

D.

E.

Hub

Refrigerant Side

Air Side

--.--°F

Delta T

--.--°F

Target Delta T

Supply Dry Bulb

Supply Wet Bulb

select tool

select tool

Return Dry Bulb

Return Wet Bulb

select tool

select tool

G.

F.

B.

A.

C.

D.

E.

H.

• 

Remove battery cover.

• 

Replace the old batteries with 2 new  

 

(AAA) batteries.

• 

Replace the battery cover.

Screw

Battery level 

are displayed in the  

tool connection screen to the right of each 

probe connected.

•     Remove battery cover.

•     Replace the old batteries with 2 new  

     (AA) batteries.

•     Replace the battery cover.

 Battery level 

are displayed in the tool  

connection screen to the right of each  

probe connected.

 

Caution

: Take care not to lose the screws when 

opening battery compartments

 

Caution

: Take care not to lose the screws when 

opening battery compartments

Hub

Refrigerant Side

Air Side

Line Pressure

Line Temp

select tool

select tool

Suction

--.--°F

Vapor 
Saturation

--.--°F

Superheat

Line Pressure

Line Temp

select tool

select tool

Liquid

--.--°F

Liquid
Saturation

--.--°F

Subcooling

R507A

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