Fieldpiece SPK2 Folding Pocket Duct Thermometer

Fieldpiece SPK2 — a folding, ultra-compact pocket duct thermometer built for fast air temperature diagnostics in ventilation, air conditioning, and heating systems (HVAC/R).

Applications

• Supply and return air temperature measurement directly inside ductwork
• Quick temperature differential (ΔT / T1–T2) determination across evaporators and condensers
• Monitoring air heater and refrigeration equipment performance
• Air temperature measurements at supply grilles and diffusers

Key features

• Folding probe with hook — the long metal probe slides easily into ducts, and the built-in hook lets you hang the thermometer hands-free for stable duct readings.
• Quick T1–T2 differential calculation — stores the first reading and compares it to the next, giving an instant ΔT readout.
• Practical measurement functions — Min/Max memory and Hold to lock the current reading on screen.
• Exceptional energy efficiency — up to 8,000 hours of operation from a single AA battery, virtually eliminating battery changes.
• Auto power off — shuts off after 15 minutes of inactivity to protect the battery.
• Rugged design — fold-away probe protects the tip against mechanical damage in a pocket or tool bag.

Technical data ParameterValue Temperature range-50°C to 120°C (-58°F to 248°F) Accuracy±0.5°C (0°C to 50°C), ±1.0°C outside that range Resolution0.1°C / 0.1°F Probe length82 mm (~3.25") Auto power offAfter 15 minutes idle Power supply1 × AA alkaline battery (included) Battery life~8,000 hours (continuous) Set contents

• Fieldpiece SPK2 pocket duct thermometer
• 1 × AA alkaline battery