FeaturesDisplay: 3 3/4 digital large LCD with 4000 countsManual & Auto rangesData holdBacklightFull overload protectionBuilt-resettable fuse protection Fuse Protection: mA and mA file: resettable fuse; 10A file: F 10A/250V 6.332mmMisconnection alarm systemRed lights to show the correct terminalsAudible warning for over-range"Sleep mode", auto power off & low battery indicationUnit symbol displayContinuity test Diode test Duty Cycle Measurement Relative value measurement SpecificationsDC voltage: 400m/4V/40V/400V +-0.7%, 1000V +- 0.8% AC voltage: 400mV +-3.0%, 4V/40V/400V +-0.8%, 750V +-1.0% Resistance: 400/4k/40k/400k/4M?? +-1.0%, 40M?? +-2.0% DC current: 400uA/4000uA/40mA/400mA +-1.5%,10A +-2.0% AC current: 400uA/4000uA/40mA/400mA +- 1.5%,10A +-3.0% Capacitance: 20n/200n/2uF/20uF +-4.0% Frequency: 10/100/1000/10k/200kHz +-2.0% Transistor hFE: 1 ~ 1000 Continuity test Diode test Duty Cycle Measurement Relative value measurementSampling Rate: approx. 3 times / secondTest Leads: 1KV 10ASafety Standards: IEC1010-1, CAT. III 600V & CAT. II 1000VOperating Temperature: 0 ~ 40 C (32 ~ 104 F)Operating Humidity: below 80% RH, Storage Temperature: -10 ~ 60 C (14~ 140 F)Storage Humidity: below 80% RHPower: 3 x 1.5V AAA batteries (included)Dimensions: 195 mm x 92 mm x 55mm (7.68' X 3.62' X 2.17' inch)Weight: Approx.380g (13.40oz)