The Fieldpiece SPK1 Pocket Knife Thermometer features a sharp tip for punching through flex duct and hangs easily from a vent or thermostat. Pull out the probe rod just like you would a pocketknife. 16 detent position grooves hold the rod at virtually at any angle. The probe rod folds away simply with no cover sleeve to lose.
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Warning: This product can expose you to chemicals including Bisphenol A (BPA) which is known to the State of California to cause Harm.