ETI Legionnaires Kit – IRC Differential Kit
£196.75
The ETI Legionnaires Kit (IRC Differential Kit) is built around the Therma Differential digital thermometer, ideal for HVAC and water system checks. It accepts two Type K thermocouple probes simultaneously, lets you display T1, T2, or the difference T1−T2, and makes it easy to measure radiator temperature drop, verify hot and cold water temperatures, or compare flow and return on pipework.
Measurement ranges are −99.9 to 299.9°C with 0.1°C resolution, and 300 to 1372°C with 1°C resolution. A clear LCD shows °C, T1, T2, diff, hold, open circuit, low battery, with an optional backlight. Auto power off after about 10 minutes helps maximise battery life. The instrument housing is a durable ABS case with an integrated rubber seal for water tightness in tough environments.
ETI Legionnaires Kit
The Therma Differential allows side-by-side temperature comparison without manual calculation. Switch the display between T1, T2, or T1−T2 to confirm temperature rise or fall at a glance. The LCD indicates operating mode and status, including hold, open circuit, and low battery. For routine checks, the auto power off feature conserves energy, while the optional backlight improves legibility in plant rooms and poorly lit areas. A robust ABS enclosure with an integrated rubber seal helps keep out moisture and dust, supporting reliable field use.
Typical applications
• Legionella control temperature checks on hot and cold water services
• HVAC flow and return comparisons on pipework and coils
• Radiator temperature drop measurement for balancing
• General maintenance where two-point or differential readings are required
Why this kit
• Dual Type K inputs for T1, T2, T1−T2 on a single instrument
• Wide range, −99.9 to 299.9°C at 0.1°C resolution, 300 to 1372°C at 1°C
• Clear LCD with °C, T1, T2, diff, hold, open circuit, low battery indicators
• Auto power off after ~10 minutes to extend battery life
• Durable ABS case with integrated rubber seal for water tightness
Spec summary
• Sensor type Type K thermocouple, dual input
• Display modes T1, T2, T1−T2 (diff)
• Ranges −99.9 to 299.9°C (0.1°C resolution), 300 to 1372°C (1°C resolution)
• Indicators °C, T1, T2, diff, hold, open circuit, low battery, optional backlight
• Power management Auto power off after ~10 minutes
• Construction ABS housing with integrated rubber seal for water tightness
IRC Differential Kit FAQs
What does T1−T2 show.
It displays the temperature difference between the two connected probes, ideal for radiator drop, flow-return, or hot and cold comparisons.
Can I use different probe types.
Yes, the Therma Differential accepts Type K thermocouple probes with standard miniature connectors, so you can select surface, immersion, or air probes to suit the task.
Does the instrument switch off automatically.
Yes, it includes auto power off after about 10 minutes to help preserve battery life.
Is the unit suitable for plant rooms and wet areas.
The ABS case with integrated rubber seal provides water tightness, supporting use in challenging environments. Avoid immersion and follow normal instrument care.
Do you offer calibration.
Yes, we can supply or arrange calibration so your kit returns ready for audit.
Helpful links
See all Environmental & Temperature
Need a calibration certificate
2 in stock
