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  1. Home
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  3. Testo
  4. Testo A\C Refrigeration

Testo A\C Refrigeration

The NEW Testo 550 Series

Testo 550 Skinny Banner

The right measuring instrument for every application. The next generation of digital manifolds from Testo. With several options available, including wireless smart probes for temperature and vacuum, and a rugged case, these digital manifolds are immediately ready to use.

Products [40]

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Testo 550s Smart Vacuum Kit with Hoses - Smart Digital Manifold with Wireless Vacuum and Temperature Probes and Set of 3 Refrigerant Hoses
Testo 550s Smart Vacuum Kit with Hoses - Smart Digital Manifold with Wireless Vacuum and Temperature Probes and Set of 3 Refrigerant Hoses
Testo 550s Smart Vacuum Kit with Hoses - Smart Digital Manifold with Wireless Vacuum and Temperature Probes and Set of 3 Refrigerant Hoses
SKU: 0564 5505 01
$829.00 $704.65 Sale
We have 158 in stock
Add to Cart
Testo 557s Smart Vacuum Kit with Hoses - Smart Digital Manifold with Wireless Vacuum and Temperature Probes and Set of 4 Refrigerant Hoses
Testo 557s Smart Vacuum Kit with Hoses - Smart Digital Manifold with Wireless Vacuum and Temperature Probes and Set of 4 Refrigerant Hoses
Testo 557s Smart Vacuum Kit with Hoses - Smart Digital Manifold with Wireless Vacuum and Temperature Probes and Set of 4 Refrigerant Hoses
SKU: 0564 5572 01
$929.00 $789.65 Sale
We have 67 in stock
Add to Cart
Testo Refrigeration Smart Probe Set - 2nd Gen Long Range BlueTooth Probes
Testo Refrigeration Smart Probe Set - 2nd Gen Long Range BlueTooth Probes
Testo Refrigeration Smart Probe Set - 2nd Gen Long Range BlueTooth Probes
SKU: 0563 0002 20
$449.00 $381.65 Sale
We have 101 in stock
Select Options
Testo Smart Probes AC / Refrigeration Capacity Test Kit-Long Range BlueTooth Probes
Testo Smart Probes AC / Refrigeration Capacity Test Kit-Long Range BlueTooth Probes
Testo Smart Probes AC / Refrigeration Capacity Test Kit-Long Range BlueTooth Probes
SKU: 0563 0009
$734.00 $623.90 Sale
We have 64 in stock
Select Options
Testo 557s Smart Vacuum Kit - Smart Digital Manifold with Wireless Vacuum and Temperature Probes
Testo 557s Smart Vacuum Kit - Smart Digital Manifold with Wireless Vacuum and Temperature Probes
Testo 557s Smart Vacuum Kit - Smart Digital Manifold with Wireless Vacuum and Temperature Probes
SKU: 0564 5571 01
$795.00 $675.75 Sale
We have 92 in stock
Select Options
Testo 550s Basic Hose Kit - Smart Digital Manifold with Wired Temperature Probes and set of 3 Premium Ball Valve Hoses
Testo 550s Basic Hose Kit - Smart Digital Manifold with Wired Temperature Probes and set of 3 Premium Ball Valve Hoses
Testo 550s Basic Hose Kit - Smart Digital Manifold with Wired Temperature Probes and set of 3 Premium Ball Valve Hoses
SKU: 550sHoseKitBasic
$514.06 $449.15 Sale
We have 56 in stock
Add to Cart
Testo 550s Smart Hose Kit - Smart Digital Manifold with Wireless Temperature Probes and set of 3 Premium Ball Valve Hoses
Testo 550s Smart Hose Kit - Smart Digital Manifold with Wireless Temperature Probes and set of 3 Premium Ball Valve Hoses
Testo 550s Smart Hose Kit - Smart Digital Manifold with Wireless Temperature Probes and set of 3 Premium Ball Valve Hoses
SKU: 550sHoseKit
$594.22 $552.06 Sale
We have 50 in stock
Add to Cart
Testo Smart Probes HVAC/R Complete Kit
Testo Smart Probes HVAC/R Complete Kit
Testo Smart Probes HVAC/R Complete Kit
SKU: 0563 0007
$1,310.00 $1,113.50 Sale
We have 82 in stock
Add to Cart
Testo 550s Smart Vacuum Kit - Smart Digital Manifold with Wireless Vacuum and Wireless Temperature Probes
Testo 550s Smart Vacuum Kit - Smart Digital Manifold with Wireless Vacuum and Wireless Temperature Probes
Testo 550s Smart Vacuum Kit - Smart Digital Manifold with Wireless Vacuum and Wireless Temperature Probes
SKU: 0564 5504 01
$710.00 $603.50 Sale
We have 80 in stock
Select Options
Testo 560i Automatic Charging System with Digital Manifold Kit
Testo 560i Automatic Charging System with Digital Manifold Kit
Testo 560i Automatic Charging System with Digital Manifold Kit
SKU: TTT-ACS-MK
$1,447.69 $1,313.36 Sale
We have 6 in stock
Add to Cart
Testo 552i App Operated Wireless Vacuum Probe
Testo 552i App Operated Wireless Vacuum Probe
Testo 552i App Operated Wireless Vacuum Probe
SKU: 0564 2552 01
$209.00 $177.65 Sale
We have 59 in stock
Add to Cart
Testo 550s Basic Kit - Smart Digital Manifold with Wired Temperature Probes
Testo 550s Basic Kit - Smart Digital Manifold with Wired Temperature Probes
Testo 550s Basic Kit - Smart Digital Manifold with Wired Temperature Probes
SKU: 0564 5501 01
$460.00 $391.00 Sale
We have 56 in stock
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Testo 550s Smart Kit - Smart Digital Manifold with Wireless Temperature Probes
Testo 550s Smart Kit - Smart Digital Manifold with Wireless Temperature Probes
Testo 550s Smart Kit - Smart Digital Manifold with Wireless Temperature Probes
SKU: 0564 5502 01
$595.00 $505.75 Sale
We have 50 in stock
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Testo 560i Automatic Charging System with Digital Scale, Intelligent Valve and Case
Testo 560i Automatic Charging System with Digital Scale, Intelligent Valve and Case
Testo 560i Automatic Charging System with Digital Scale, Intelligent Valve and Case
SKU: 0564 2560 01
$540.00 $459.00 Sale
We have 23 in stock
Add to Cart
Testo 550i - App Operated Manifold
Testo 550i - App Operated Manifold
Testo 550i - App Operated Manifold
SKU: 0564 2550 01
$335.00 $284.75 Sale
We have 9 in stock
Select Options
Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes
Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes
Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes
SKU: 0564 3550 01
$519.00 $441.15 Sale
We have 2 in stock
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Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes and Vacuum Probe
Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes and Vacuum Probe
Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes and Vacuum Probe
SKU: 0564 4550 01
$585.00 $497.25 Sale
We have 7 in stock
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Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes and Thermohygrometers
Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes and Thermohygrometers
Testo 550i Smart Kit - App Operated Manifold with Wireless Temperature Probes and Thermohygrometers
SKU: 0564 5550 01
$625.00 $531.25 Sale
We have 14 in stock
Select Options
Testo 560i Intelligent Refrigerant Valve with Bluetooth - For Testo Digital Scale
Testo 560i Intelligent Refrigerant Valve with Bluetooth - For Testo Digital Scale
Testo 560i Intelligent Refrigerant Valve with Bluetooth - For Testo Digital Scale
SKU: 0560 5600 01
$244.00 $207.40 Sale
We have 6 in stock
Add to Cart
Testo 560i Digital Bluetooth Scale with Case
Testo 560i Digital Bluetooth Scale with Case
Testo 560i Digital Bluetooth Scale with Case
SKU: 0564 1560 01
$345.00 $293.25 Sale
We have 8 in stock
Add to Cart
Testo Clamp Probe for 549, 550, 557 and 570
Testo Clamp Probe for 549, 550, 557 and 570
Testo Clamp Probe for 549, 550, 557 and 570
SKU: 0613 5505
$72.00 $61.20 Sale
We have 18 in stock
Add to Cart
Testo IR Printer with Batteries and 1 Roll Thermal Paper
Testo IR Printer with Batteries and 1 Roll Thermal Paper
Testo IR Printer with Batteries and 1 Roll Thermal Paper
SKU: 0554 0549
$410.00 $348.50 Sale
We have 5 in stock
Add to Cart
Testo 605-H2 Humidity Stick with Wet-Bulb Calculation
Testo 605-H2 Humidity Stick with Wet-Bulb Calculation
Testo 605-H2 Humidity Stick with Wet-Bulb Calculation
SKU: 0560 6054
$150.00 $127.50 Sale
We have 11 in stock
Add to Cart
Testo Custom Transport Case
Testo Custom Transport Case
Testo Custom Transport Case
SKU: 0516 0012
$151.00 $128.35 Sale
We have 0 in stock
Add to Cart
Testo 316-3 Heated Diode Refrigerant Leak Detector
Testo 316-3 Heated Diode Refrigerant Leak Detector
Testo 316-3 Heated Diode Refrigerant Leak Detector
SKU: 0563 3163
$429.00 $364.65 Sale
We have 34 in stock
Add to Cart
Testo 316-4 Leakage Detector for Refrigerants
Testo 316-4 Leakage Detector for Refrigerants
Testo 316-4 Leakage Detector for Refrigerants
SKU: 0563 3164
$586.00
We have 1 in stock
Add to Cart
Testo Leaf surface probe, TC type K, 32 to 572ÿ¨_Ÿáÿ∏F
Testo Leaf surface probe, TC type K, 32 to 572ÿ¨_Ÿáÿ∏F
Testo Leaf surface probe, TC type K, 32 to 572ÿ¨_Ÿáÿ∏F
SKU: 0602 0193
$206.00 $175.10 Sale
We have 0 in stock
Add to Cart
Testo immersion/penetration probe
Testo immersion/penetration probe
Testo immersion/penetration probe
SKU: 0602 2693
$191.00 $162.35 Sale
We have 1 in stock
Add to Cart
Testo 552 Digital Vacuum Gauge with BlueTooth and Coupler
Testo 552 Digital Vacuum Gauge with BlueTooth and Coupler
Testo 552 Digital Vacuum Gauge with BlueTooth and Coupler
SKU: 0560 5522-WC
$250.95 $214.60 Sale
We have 43 in stock
Add to Cart
Testo AC Power Supply 5V for Testo 440, 320, 315-3, and 310
Testo AC Power Supply 5V for Testo 440, 320, 315-3, and 310
Testo AC Power Supply 5V for Testo 440, 320, 315-3, and 310
SKU: 0554 1105
$65.00 $55.25 Sale
We have 17 in stock
Add to Cart
Testo 0440 5504 Back Cover and Hook for 550 Series (No Bluetooth)
Testo 0440 5504 Back Cover and Hook for 550 Series (No Bluetooth)
Testo 0440 5504 Back Cover and Hook for 550 Series (No Bluetooth)
SKU: 0440 5504
$24.00
We have 6 in stock
Add to Cart
Testo 550/557/570/435 Ambient Air Temp Probe - NTC
Testo 550/557/570/435 Ambient Air Temp Probe - NTC
Testo 550/557/570/435 Ambient Air Temp Probe - NTC
SKU: 0613 1712
$118.00 $100.30 Sale
We have 0 in stock
Add to Cart
testo FREE DOWNLOAD A/C Troubleshooting Guide - Digital Delivery
testo FREE DOWNLOAD A/C Troubleshooting Guide - Digital Delivery
testo FREE DOWNLOAD A/C Troubleshooting Guide - Digital Delivery
SKU: DIGITAL 1245
We have 999999999 in stock
testo EasyKool Software
testo EasyKool Software
testo EasyKool Software
SKU: 0554 5604
$423.00 $359.55 Sale
We have 0 in stock
Add to Cart
Testo Pipe clamp probe for pipe diameter 5 to 65 mm K-Type
Testo Pipe clamp probe for pipe diameter 5 to 65 mm K-Type
Testo Pipe clamp probe for pipe diameter 5 to 65 mm K-Type
SKU: 0602 4592
$212.00 $180.20 Sale
We have 0 in stock
Add to Cart
Current Probe for testo 556, 560 & 570
Current Probe for testo 556, 560 & 570
Current Probe for testo 556, 560 & 570
SKU: 0554 5607
$306.00 $260.10 Sale
We have 1 in stock
Add to Cart
Oil Pressure Probe for Testo 556, 560 & 570
Oil Pressure Probe for Testo 556, 560 & 570
Oil Pressure Probe for Testo 556, 560 & 570
SKU: 0638 1742
$448.00 $380.80 Sale
We have 0 in stock
Add to Cart
Testo Replacement PT100 Surface Probe
Testo Replacement PT100 Surface Probe
Testo Replacement PT100 Surface Probe
SKU: 0609 1973
$194.00 $164.90 Sale
We have 999999999 in stock
Add to Cart
Testo 550 Watertight Surface Probe for Even Surfaces - NTC
Testo 550 Watertight Surface Probe for Even Surfaces - NTC
Testo 550 Watertight Surface Probe for Even Surfaces - NTC
SKU: 0613 1912
$135.00 $114.75 Sale
We have 1 in stock
Add to Cart
Testo 550 Pipe Wrap Probe with Velcro - NTC
Testo 550 Pipe Wrap Probe with Velcro - NTC
Testo 550 Pipe Wrap Probe with Velcro - NTC
SKU: 0613 4611
$136.00 $115.60 Sale
We have 0 in stock
Add to Cart
Previous Page PAGE... PAGE PAGE ...PAGE Next Page View All Exit View All

Whatever the digital manifolds are needed for – the new Testo 550 line has the right one. Compare and decide better.

Images link to best kit for the job

Testo logo Testo 550s Testo 557s Testo 550i
  Testo 550s Testo 557s Testo 550i
Valve Block 2-Way 4-Way 2-Way
Large Graphic Display ✓ ✓ (App Only -
Smart Device Required)
Testo Smart App Compatible Bluetooth 5.0 (range up to 500 feet) Bluetooth 5.0 (range up to 500 feet) Bluetooth 5.0 (range up to 500 feet)
Smart Probe Compatible ✓
(with automatic connection)
✓
(with automatic connection)
✓
(with automatic connection)
Compact one-hand opperation ✓ ✓ ✓
(ultra-compact)
Protection Class IP54 IP54 IP54
Identical Pressure Measuring Range HP/LP up to 870 psi up to 870 psi up to 870 psi
Pressure Accuracy Measurement > 0.5 % of fs > 0.5 % of fs > 0.5 % of fs
Integrated Temperature Measurement ✓
(up to 2 temperature probes
+ Bluetooth probe)
✓
(up to 2 temperature probes
+ Bluetooth probe)
✓
(up to 2 temperature probes
+ Bluetooth probe)
Target Superheat on Manifold or App ✓
(Both)
✓
(Both)
✓
(App Only)
Data documented and sent via App ✓ ✓ ✓
Refrigerants Stored 90 90 90
Refrigerant Update automatically via App ✓ ✓ ✓
Suitable for A2L Refrigerants ✓ ✓ ✓
Testo PC Software (Optional) ✓ ✓ ✓

Measurements Matter!

Why choose a Testo Digital Gauge? Because the measurement is never compromised!

When it comes to accurately charging, commissioning and testing A/C and Refrigeration systems the Testo Digital Gauges are considered the most accurate instruments on the market. All measurements are not created equal! Utilizing a lower range pressure transducer means that Testo Digital Gauges are more accurate in the designed working range. Because the sensors are ceramic, they can handle over pressurization at almost twice the working pressure. Special designed temperature clamps that use NTC thermistors also mean higher accuracy, repeatability, and a lower over measurement uncertainty than other digital gauges. The Testo Digital Gauges come fully calibrated out of the box unlike manifolds using K-type thermocouples and recalibration is not required when the probes are replaced or even switched in the meter sockets. Because the Testo Digital Gauges are temperature compensated, atmospheric compensated and protected from EMF, you can be assured of accurate quick measurements that are right the first time every time.



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