C Connectors are typically used with Ludlum meters and probes.  These are used C cables.  If you are using these for walkover surveys with lead shielded probes, let us know as we have some of these with reinforcing wire to carry the weight.

We also sell new cables here:

Take your meter to the digital age with Counts.Pro:

Add a Counts.Pro for $499 ($100 discount when you buy one of our refurbished meters) to digitize and record your surveys and turn your meter into a digital scaler/ratemeter/cloud connected GPS datalogger!  Take your meter to the next level with Counts.Pro.  A refurbished meter WITH Counts.Pro can be had for about the price of a new Model 3.

Works in your meter and any of the following IOS devices:

iPhone

• iPhone requires iOS 12.0 or later.

iPad

• iPad, 3rd generation
• iPad, 4th generation
• iPad mini
• iPad mini 2
• iPad mini 3
• iPad Air
• iPad Air 2

iPod

The iPod Touch (5th generation) is equipped with Bluetooth 4.0.

The Counts.Pro App is in the apple store here:

Visit the itunes App Store