Stick Type Infrared Pyrometers

OS643/OS643-LS °C/°F Switchable Detection Element: Thermopile Sighting: Laser Marker 1 mW Backlit LCD Display Analog Output: 1 mV/°C/°F Emissivity: 0.95, Accuracy ± 3% Temperature Range: 0 to 260°C (32 to 500°F )
OS643E/OS643E-LS Infrared Thermometer °C/°F Switchable Detection Element: Thermopile Sighting: Laser marker 1 mW Backlit LCD Display Emissivity: Adjustable 0.01 to 1.00 Temperature Range: -20 to 400°C, -4 to 752°F	OS643W Switchable from IR to T/C Temperature Range: IR: 32 to 500°F T/C: -58 to 2000°F Accuracy: IR: ± 3% rdg T/C: ± 0.3% rdg + 2°F Analog Output: 1 mV/°C/°F Emissivity: 0.95 Detection Element: Thermopile

	OS643	OS643-LS	OS643E	OS643E-LS	OS643W
Backlit LCD	Yes	Yes	Yes	Yes	Yes
Resolution (counts)	1999	1999	1999	1999	1999
Laser guide (1mW)	No	Yes	No	Yes	No
Emissivity (E)	0.95	0.95	Adjustable 0.01 to 1.00	Adjustable 0.01 to 1.00	0.95
Range C°	0 to 260	0 to 260	-20 to 400	-20 to 400	IR: 0 to 260 TC: -50 to 1300
Range F°	32 to 500	32 to 500	-4 to 752	-4 to 752	IR: 32 to 500 TC: -58 to 2000
Auto hold	Yes	Yes	Yes	Yes	Yes
Auto-power off	Yes	Yes	Yes	Yes	Yes

Caution: This product and all in the series are not for use in medical evaluations. These products cannot be used to measure body temperature. They are meant for industrial and scientific purposes.