This adapter lets you connect a Type K thermocouple temperature probe to your Testo 770-2 or 770-3 clamp meter. It's essential for techs who need to log or check temperature readings alongside electrical parameters on one device, making troubleshooting easier. I've used these to quickly check coil temperatures or duct discharge temps without swapping tools on a hot roof.

It expands the utility of your clamp meter, turning it into a versatile diagnostic tool for a range of HVAC and electrical tasks.

Best For

• HVAC technicians checking system temperatures.
• Electricians needing integrated temperature measurement.
• Maintenance teams performing diagnostic work.

Compatibility

This adapter is designed specifically for the Testo 770-2 and Testo 770-3 clamp meters. It accepts any standard Type K thermocouple temperature probe, giving you flexibility with your probe selection. If you're running a different model, check fittings and specs before ordering.

Features

• Converts Clamp Meter: Adds temperature measurement capability to your Testo 770-2 or 770-3.
• Wide Measuring Range: Handles temperatures from -20 to +500°C, suitable for most HVAC applications.
• Ambient Temperature Compensation: Ensures accurate readings by correcting for environmental conditions.
• Simple Plug-and-Play: Easily inserts into your clamp meter for quick setup.
• Includes Battery: Ready to go out of the box with a pre-installed CR 2032 lithium battery.

Technical Specifications

What's in the Box

• Testo Type K Thermocouple Adapter (SKU 0590 0021)
• CR 2032 Lithium Battery (pre-installed)

Using It on the Job

1. Ensure your Testo 770-2 or 770-3 clamp meter is switched off before connecting.
2. Insert the adapter firmly into the designated port on your clamp meter.
3. Connect your Type K thermocouple temperature probe to the adapter.
4. Power on your clamp meter and select the temperature measurement function.
5. Take your readings within the -20 to +500°C range. When finished, power down and disconnect.

Limitations & Safety Notes

• Only compatible with Testo 770-2 and 770-3 clamp meters.
• Do not exceed the specified measuring range of -20 to +500°C, as this may damage the unit or give inaccurate readings.
• Always ensure the adapter and probe are securely connected before use.
• Follow all Australian standards and Safe Work guidance when performing measurements, especially near live electrical components.

A handy trick is to keep a spare CR 2032 battery in your kit. Nothing worse than needing a temperature reading and finding your adapter flat in the middle of a job.

Pair With

Pair with a Testo 770-2 or 770-3 clamp meter and a range of Type K thermocouple probes for versatile temperature measurements. Explore our full range of Testo test equipment and electrical accessories.