Pros, Join Our TradeMaster Program!
1/4" to 1-1/3" NTC Clamp Probe (-40.0° to 257.0°F)

Testo NTC Clamp Probes will allow you to properly measure Evaporator and Condensor temperatures in real time using your Testo Digital Manifold. Using the clamp probes will also allow the manifold to calculate SuperHeat and SubCool values, ensuring that they are at a correct, optimized level, and the refrigeration system is running at maximum efficiency.

The Testo NTC clamp probe is compatible with the following Testo products: testo 550, testo 557, and testo 570.

Technical Data:
  • Measuring Range: -40.0° to 257.0 °F
  • Accuracy: ±1.8 °F (-4.0° to 185 {#0.0} °F)
Hide Description
Product Type:




Measurement Range:

-40.0° to 257.0°F

Pipe Size:

1/4" to 1-1/3"

Speak with a real person who will go out of their way to help!
Open Now:
Monday – Thursday
8am–7:45pm ET
9am–7:45pm ET

4 Product Reviews

Product Q&A

Add-on Item

This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.