421501

      The Extech 421501 Type K Digital Thermometer ,which is wate resistace ,measures temperature with a Type K thermocouple. The thermocouple attaches to the meter with a sub-miniature plug. The 421501's display is backlit and includes a Data Hold feature. Other features include Max Temperature and selectable units/resolution. This 421501 meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

     There are nine parts of the whole 421501, which is thermocouple plug , LCD display, power on/off button , resolution select button , maximum reading mode button, rubber protective jacket,  unit of measure o C/ o F select key, backlight activation key , data hold key  while battery compartment and tilt santd on rear of meter.

     Then, there are some specifications about 421501. Display is 3-1/2 digit LCD (2000 counts). Battery Power Supply is 9V DC battery. Battery life is 200 hours typical. Dimensions is 7.5 x 3.6 x 2.1" (192 x 91 x 52.5mm). Weight is 11.7oz. (365g). Temperature units is selectable ^oC or ^oF temperature units. Accuracy of meter is ±(0.3% of reading + 1^oC) from -50^oC to 1000^oC,±(0.5% of reading + 1^oC) from 1000oC to 1300oC and ±(0.3% of reading + 2^oF) from -58^oF to 2000^oF. Temperature Coefficient is 0.1 times the applicable accuracy specifications per ^oC from 0^oC to 18^oC and 28^oC to 50^oC (32^oF to 64^oF and 82^oF to 122^oF). Water resistant housing is gasket protected front panel. Input Protection is 24VAC/DC max. input on any combination of inputs. Reading rate is 2.5 times per second. Thermocouple connection is that meter accepts standard subminiature connector.Operating conditions is from 32^oF to 122^oF (0^oC to 50^oC)(less than 80%RH). Storage conditions is from -4^oF to 140^oF (-20^oC to 60^oC)(less than 70% RH).
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