THIS INFRARED THERMOMETER FEATURES A 121 DISTANCE TO SPOT RATIO AND HAS BEEN DROP TESTED UP TO 9.8FT (3M). THE R2310 HAS THE ABILITY TO TRACK MAXIMUM MINIMUM AVERAGE AND DIFFERENTIAL READINGS AND THE ABILITY TO SET HIGH/LOW ALARMS AND MONITOR CONTINUOUSLY. FEATURES UL STYLE""MARGIN-TOP 0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" BUILT-IN LASER POINTER IDENTIFIES TARGET AREA USER SELECTABLE &DEG;F OR &DEG;C 121 DISTANCE TO SPOT SIZE RATIO DIGITALLY ADJUSTABLE EMISSIVITY MAX MIN AVERAGE AND DIFFERENTIAL READINGS BACKLIT DISPLAY HIGH AND LOW ALARMS DUSTPROOF AND DROP TESTED TRIGGER LOCK FOR CONTINUOUS MONITORING LOW BATTERY INDICATION AND AUTO SHUT OFF ACCURACY UL STYLE""MARGIN-TOP 0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" ≥32&DEG;F (0&DEG;C)±3.6&DEG;F (1.8&DEG;C) OR ±1.8 RDG. WHICHEVER IS GREATER <32&DEG;F (0&DEG;C±3.6&DEG;F+0.1&DEG;F (1.8&DEG;C+0.1&DEG;C)/RDG. APPLICATIONS UL STYLE""MARGIN-TOP 0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" VERIFY MECHANICAL (BEARINGS MOTORS) OR ELECTRICAL (CIRCUIT BREAKER BOXES) EQUIPMENT CALIBRATION AND CONTROL OF HEATER AND OVEN TEMPERATURES MONITORING MATERIALS IN PROCESSES INVOLVING HEATING AND/OR COOLING QUALITY CONTROL MONITORING RESEARCH AND DEVELOPMENT APPLICATIONS AUTOMOTIVE DIAGNOSTICS CONDUCT HVAC/R ENERGY AUDITS