Tempco
Tempco MTA01202 Thermocouple Probe Type J Terminal Block HVAC Control
Type J thermocouple probe with terminal block for HVAC, ovens and food applications, 32 to 1,400 °F range
- ColorTransparent
- Type J thermocouple covers 32 to 400 °F for broad HVAC use
- Ungrounded probe avoids ground-loop errors in sensitive controls
- 12 in probe reaches deep into ducts or ovens
- 1/2 in MNPT fitting mounts directly into standard process threads
- Terminal block simplifies wiring without extra connectors
Type J Thermocouple Probe for HVAC
The Tempco MTA01202 is a Type J thermocouple probe built for HVAC control systems. It fits appliances, ductwork, ovens, packaging lines, pharmaceutical equipment and food and beverage processing. The ungrounded design reduces electrical noise in sensitive control loops.
12-inch probe with 32 to 1400 °F range
A 1/4-inch diameter probe extends 12 inches into the process stream. The terminal block connection simplifies wiring in panels and junction boxes. The probe operates from 32 °F up to 1400 °F (0 °C to 760 °C), covering most air-handling and heating applications.
Replaces worn Type J probes with terminal blocks
This unit replaces failed or drifted Type J probes that use a terminal block and 1/2-inch MNPT fitting. The jump is worth it when the old probe shows slow response, open-circuit faults or calibration drift beyond acceptable limits. It does not suit applications requiring Type K, Type T or grounded junctions.
Highlights
- Type J thermocouple covers 32 to 400 °F for broad HVAC use
- Ungrounded probe avoids ground-loop errors in sensitive controls
- 12 in probe reaches deep into ducts or ovens
- 1/2 in MNPT fitting mounts directly into standard process threads
- Terminal block simplifies wiring without extra connectors
Specifications
| Brand | TEMPCO |
|---|---|
| Color | Transparent |
Questions about this item
Will the 1/2 in MNPT thread on this Type J probe fit the existing port on my older HVAC duct?
The probe uses a 1/2 in MNPT process connection; match that thread to your duct port before installing.
How can I verify the MTA01202 is reading correctly after wiring it to my controller?
Apply a known temperature source within the 32 to 1,400 °F range and confirm the controller displays the expected Type J millivolt output.
Does the box include a mating thermocouple connector or extension wire, or must I buy them separately?
The package contains the ungrounded Type J probe with integral terminal block only; connectors and extension wire are sold separately.
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