The MT1875 is a 6-in-1 Digital Multimeter with Environmental Measurement. It has been designed to combine the functions of Sound Level, Light Meter, Humidity, Temperature and non contact voltage detector all in one meter. Sound level can be used in factories, schools, offices and homes, checking acoustics of studios, auditoriums and hi-fi installations. Light meter is fully cosine corrected for the angular incidence of light. Temperature is measured via a K-Type thermocouple. The DMM function includes AC volt, DC volt, AC current, DC current, Resistance, Capacitance, Frequency and Duty Cycle. Accessories: Type K Temperature Probe 9V Battery MT810 Test Leads Instruction Manual Optional Accessories: MT684 IR Probe MT680 K-Type Air Probe MT670 Surface Probe MTMAG Magnetic Strip MT685 K-Type General Purpose Probe MT827 Carrying Bag Features : 6-in-1 multifunction meter with environment measurement Fully functional DMM with ACV, DCV, ACA, DCA, Ohms, frequency, Capacitance and Duty Cycle Continuity Buzzer and Diode Test Non-contact voltage detector LUX Meter measurement to 40,000 lux Indoor: Humidity range from 25% to 95% RH (0.1%) Indoor: Temperature from – 20°C to 50°C Sound level measurement to 110dB 4000 Count digital display with backlight Data hold and relative function CAT III 300V and CAT II 600V