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ST4 Dual Temperature Meter

Heavy Duty Dual Temp Displays T1, T2, or T1-T2. Great for Delta T Calculations

  • Two K-type thermocouples included
  • Accepts any K-type thermocouple
  • Resolution of 0.1 degree C
  • Separate MIN/MAX and HOLD buttons
  • Easy field calibration

The Fieldpiece Dual-Temperature Meter, model ST4, measures two temperatures simultaneously using the included k-type, wrap tab beaded thermocouples.  The technology inside the ST4 provides superior temperature compensation in rapidly changing environments commonly found while performing field service. 

Use the ST4 to find Delta T and just about any temperature split you want to measure.  Displays T1, T2 and T1-T2 in big numbers on the LCD screen. Features two front face calibration pots and comes in our clear front case with magnetic hanger model ANC6.  Use with our optional ATWB1 wet bulb thermocouple to help you find target superheat or with our pipe clamp T/Cs to check for blocked dryer filters.


Whats Included

  • Dual-Temperature meter - ST4
  • (2) K-type Wrap Tab Bead Thermocouples - ATB1
  • (2) Velcro Tie- wraps
  • Clear Front Nylon Bag with Magnetic Hanger - ANC6
  • 9-Volt Battery 
  • Operator’s Manual


  • Specifications good in ambient conditions of 73°F ±9°F (23°C ±5°C), <75% relative humidity
  • Display: 3.5 digit LCD, 2000 count
  • Over range: "OL" or "-OL" is displayed
  • Range: -58 to 2000°F (-50 to 1300°C)
  • Resolution: 0.1° Accuracy: ±4°F @ -58 to 32°F ±(0.3%rdg +2°F) @ 32 to 1100°F ±(0.5%rdg +2°F) @ 1100 to 2000°F; ±2°C @ -50 to 0°C ±(0.3%rdg +1°C) @ 0 to 600°C ±(0.5%rdg +1°C) @ 600 to 1300°C
  • Accuracy after field calibration: ±1°F @ 30 to 120°F, ±6°F @ 0 to 50°F
  • Temperature coefficient: 0.1 x (specified accuracy) per °C (0 to 18°C, 28 to 50°C)
  • Measurement rate: 2.5 readings/second Battery type: 9V, NEDA 1604, JIS 006P, IEC 6F22
  • Battery life: 200 hours typical alkaline. is displayed when the battery needs to be replaced.
  • Operating environment: 32°F to 122°F (0°C to 50°C) at <75% RH
  • Storage temperature: -4°F to 140°F (-20°C to 60°C), 0 to 80% RH (with battery removed)

Brand Fieldpiece
Shipping Weight 1.0000kg
Shipping Width 0.120m
Shipping Height 0.120m
Shipping Length 0.350m
Shipping Cubic 0.005040000m3
Unit Of Measure ea
Assembled Length 0.350m
Assembled Height 0.120m
Assembled Width 0.120m

1 - Year from Date of Purchase

​Excludes Consumables such as Filters, Gaskets, Leads, Batteries, Fuses, Sensors, Case etc

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