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Technical Notes
4150 Gen. Purpose Probe
4119 and 4120 Waterproof Probes
4116 and 4126 Spring-Loaded Probes
41000 Series Probes
42000 Series Products
Special Category Probes
Connection Heads
Platinum/Thermocouple Transmitters
Temperature Sensors

Connection Heads

These are our standard connection heads. We can also supply heads in various plastics or in stainless steel. Part numbers shown are for use when purchasing heads independently of probes. When ordering as part of a probe, do not use the 42 prefix.  

All models except the 42ECI are available with a removable transmitter-mounting plate for use with standard 1.3 inch (33MM) mounting center transmitters. Order as 42EALTM, 42EXALTM, or 42EXTM. The covers on all models except the 42EX are secured to the bodies with a removable 9 inch length of stainless steel bead chain.

Heads are weathertight after installation- NEMA 4. The 42EXAL and 42EX heads are UL and CSA approved, and meet Class I-B, C, D, Class II-E, F, G, and Class III requirements when installed with approved conduit and fittings.  

Option CH Cross Hole

A .060 inch diameter hole is drilled across one of the drive tangs on the cover of any of the heads to provide a method for the user to install a wire and seal. Useful for regulatory requirements or for tamper resistance. Specify, for example, 42EXCH.

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