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Allied Instrument offers Thermocouples and RTD sensors from Apollo Sensors.  Apollo sensors are made with the highest quality components for outstanding reliability. Please contact us today for assistance.

Choose your sensor option below
Adjustable Bayonet Thermocouple
Easily obtaining a desired probe depth, the adjustable bayonet sensor uses a spring or armor hose to create a spring loaded effect. the bayonet cap rotates up and down a 10″ spring or the full length of the armor hose. This allows for a tight positive contact between the probe tip and the surface for accurate temperature readings.

Fixed Probe Thermocouple
Fixed probe thermocouples can be used in drill holes where mounting is not an issue.  This type of construction can be submerged in liquids.  moisture proofing the lead exit is a popular option for immersion applications.

Fixed Bayonet Thermocouple
Fixed bayonet sensors provide constant spring pressure in the well. This style of thermocouple can be provided with a connector at the back of the probe to eliminate the lead wires.  A critical dimension for this style probe is the mounting length, which is from the tip of the probe to the back of the cap. The standard length is one and one quarter inch. 

Fixed Compression Thermocouple
Another option for installing a thermocouple probe is with the use of a compression fitting. After drilling and tapping a hole, the compression fitting can be installed in the application and tightened onto the probe securing it in place. A brass 1/8″ NPT is standard while others are available.

MI Cable with protection head
Protection head assemblies are typically used in conjunction with a thermowell.  The sensor can be mounted directly into the process or can be mounted into a thermowell, which is then mounted into the process.

Melt Bolt Thermocouple
Melt bolt temperature probes are designed for dependable temperature measurement of the plastic melt stream within extruders and injection molding equipment. Standard melt bolt thermocouple assemblies are supplied with mineral insulated (MgO) sensing elements for extended pressure and temperature 

Pad Mount Thermocouple
The pad mount style sensor is a great way to measure surface temperature. The low profile allows for pad to be placed between components for sensing temperature. This is an option for measuring nozzle heat on a molding machine. The pads can be made rigid or flexible and in different sizes to meet your needs.

Ring Style Thermocouple
The ring style thermocouple can be placed beneath existing screws or bolts to permit surface temperature measurement 

Have Questions?
Call us at 708-788-1912
One of our representatives can assist you with your application.