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Standard Method 5 Probes

Standard Method 5 Probes

The Apex Instruments Standard Method 5 Heated Probe feature a 1″ diameter sheath constructed from corrosion-resistant stainless steel, modular 3/8″ pitot tip, 1/4″ stainless steel quick connects, Type-K thermocouples for stack & probe temperature, probe heater, and an orsat line, and a small parts package. Standard lengths are 3’ to 16’. Longer lengths and custom orders are available by request. Probes are ordered according to nominal (liner length). Effective length is one foot less than nominal length. Order probe liners separately.

SKU: PS-❒-❒❒❒❒❒ Category:


The standard method 5 probe max temperature is determined by the tube heater, which is rated for 500 ºF.


Additional options such as 1.5 IN oversheath and packing glands, or 3/8″ Quick Connects are available.

Please note that oversheath packing gland must be specified at time of order.



 Our Custom Alloy Method 5 Probes are designed for hot corrosive gases. Alloy probes are built to order from a choice of alloy materials dependant on availability. The 3/8” pitot, 1/4” stainless steel quick connects, stack temperature thermocouple with magnesium oxide insulation, and orsat lines are secured to the sheath, but are designed to allow for differences in thermal expansion rates. The pitot is made of one-piece construction as modular tips are not recommended in high-temperature applications. Order liners separately.
  • Recommended for High-Temperature Applications
  • Highly Corrosion Resistant
Alloy Method 5 Probes Visual

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