Mastercool 52255 A/C System Analyzer Kit | System Analyzer + Round Vane + Clamp-on Thermocouple

Mastercool 52255 A/C System Analyzer Kit

The Mastercool 52255 is a complete A/C system diagnostic kit that calculates all the critical parameters needed to diagnose and verify refrigerant charge — without charts or manual calculations. The LCD display guides the technician step-by-step through each test, making it fast, accurate, and straightforward to use on any job.

This kit (52255) includes the 52251 System Analyzer, 52253 Round Vane, and 52336 3ft Clamp-on Thermocouple, supplied in a blow-moulded carry case.

What's in the Kit (52255)

• 52251 – A/C System Analyzer (main unit)
• 52253 – Round Vane accessory
• 52336 – 3ft Clamp-on Thermocouple
• Blow-moulded carry case
• 6 x AA batteries

Key Features & Benefits

• Calculates actual superheat and subcool for R22, R114, R123, R124, R134a, R141, R142, R401A, R401B, R404A, R407A, R407B, R407C, R407D, R408A, R409A, R410A, R411A, R411B, R414A, R414B, R417A, R507A
• All functions of a high-end anemometer – airflow volume, air velocity, dry bulb temperature, wet bulb temperature, relative humidity, and dew point
• Save and download results in Excel format for service records and compliance
• Optional Pressure Transducer (52252) – for direct system pressure readings
• Optional Antenna Type Meter (52254) – for hard-to-reach locations
• Backlit LCD display
• Low battery indicator
• K-type thermocouple connection
• USB connection for data download

Measurements

• Actual Superheat
• Actual Subcool
• Target Superheat
• Temperature Split
• Dry Bulb, Wet Bulb temperature
• Relative Humidity
• Dew Point
• Air Velocity & Air Flow Volume
• Temperature display: °F and °C
• Pressure display: PSI and Bar

Accessory Specifications

Round Vane (52253):

• Temp range: -20 to 60°C (-4 to 140°F) | Resolution: 0.1°C (0.2°F)
• Accuracy: ±0.6°C (1.1°F) -20 to 50°C; ±1.2°C (2.2°F) at other range
• Humidity range: 0.1 to 99.9% RH | Resolution: 0.1% RH
• Humidity accuracy: ±3% RH (25°C, 10–90% RH); ±5% RH at other range
• Windspeed: 0.6 to 32 m/s | Resolution: 0.1 m/s | Accuracy: ±2% of full scale

Clamp-on Thermocouple (52336):

• Temp range: -40 to 121°C (-40 to 250°F) | Resolution: 0.1°C (0.2°F)

Specifications

• SKU: 52255
• Barcode: 700376522500
• Dimensions (with boot): 191 x 93 x 41mm
• Weight (with batteries & round vane): 500g
• Operating temperature: 0 to 50°C (32 to 122°F), humidity <80%
• Storage temperature: -20 to 50°C (-4 to 122°F), humidity <90%
• Power: 6 x AA batteries
• Country of origin: USA
• Brand: Mastercool

Also Available — Other Kit Configurations

• 52260 – System Analyzer + Antenna Type Meter + Clamp-on Thermocouple
• 52270 – System Analyzer + Round Vane + Clamp-on Thermocouple
• 52280 – System Analyzer + Round Vane + Antenna Type Meter + Clamp-on Thermocouple + Pressure Transducer (full kit)

Ideal Applications

• A/C system refrigerant charge verification
• Superheat and subcool diagnostics
• Airflow and humidity measurement
• Service record data logging and download
• Residential and commercial HVAC commissioning

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