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The Extech RPM10 Combination Tachometer + IR Thermometer features a built-in IR thermometer with laser measures remote surface temperature on motors and rotating parts. Fixed 0.95 emissivity, 6:1 distance to target ratio. Provides wide RPM (photo and contact) and Linear Surface Speed (contact) measurements. Large 0.4" (5 digit) LCD display. Contact tachometer for RPM and surface speed measurements. Specifications. Display counts: 99,999 count LCD. Range (rpm) Photo: 10 to 99,999. Range (rpm) Contact: 0.5 to 20,000. ft/min: 0.2 to 6560 (Contact). m/min: 0.05 to 1999.9 (Contact). Basic Accuracy: ±(0.05% rdg + 1 digit). Maximum rpm Resolution: 0.1 rpm. Temperature (IR): -4 to 600°F (-20 to 315°C).
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