The Lennox Y9241 Fieldpiece SPK1 Pocketknife Style Thermometer is a rugged, precision thermal measurement tool designed for HVAC/R professionals working with today’s wide range of refrigerants, including A2L (mildly flammable) blends. Built in a convenient pocketknife format, the SPK1 combines compact portability with reliable performance on the job, helping technicians quickly measure temperatures for system diagnostics, superheat/subcooling calculations, and airflow assessments.

The Fieldpiece SPK1 features fast-responding dual temperature sensors that quickly identify accurate readings, whether you are measuring suction, discharge, or ambient conditions. Its intuitive fold-out design protects the sensor probes when not in use, and the ergonomic grip ensures comfort during repeated daily use. The clear, easy-to-read digital display shows temperature readings in either Fahrenheit or Celsius, giving you flexibility on the jobsite.

Compatibility with A2L refrigerants makes this thermometer a future-ready choice as the HVAC industry transitions to lower-GWP (global warming potential) refrigerant blends. The SPK1 is engineered to maintain safety and accuracy when working with newer refrigerants, helping you stay compliant and efficient.

Durable construction withstands jobsite wear, and the battery-powered design ensures long field life without the need for frequent recharging. Lightweight and compact, the SPK1 fits easily into your tool pouch, pocket, or belt, making it ideal for service calls, installs, and preventative maintenance.

Whether you are troubleshooting a system, setting charge, or verifying airflow, the Lennox Y9241 Fieldpiece SPK1 Pocketknife Style Thermometer provides fast, dependable temperature measurements you can trust.

 

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