WISCO International (Instek Hand-Held Digital Multimeter)

DC VOLTAGE
Range	200mV, 2V, 20V, 200V, 1000V (GDM-451/356) 400mV, 4V, 40V, 400V, 1000V (GDM-394/396) 400mV, 4V, 40V, 400V, 600V (GDM-395) 200mV, 2V, 20V, 200V, 500V (GDM-350A)
Best Accuracy	�(0.05%rdg + 3digits) for GDM-451 �(0.5%rdg + 1digit) for GDM-356 �(0.7%rdg + 3digits) for GDM-395 �(0.5%rdg + 2digits) for GDM-350A �(0.8%rdg + 1digit) for GDM-394/396
Input Impedance	10M Ω
AC VOLTAGE (40Hz ~ 400Hz)4
Range	2V, 20V, 200V, 750V (GDM-451/356) 4V, 40V, 400V, 750V (GDM-394/396) 4V, 40V, 400V, 600V (GDM-395) 200V, 500V(GDM-350A)3
Best Accuracy	�(0.5%rdg + 10 digits) for GDM-451 �(0.8%rdg + 3 digits) for GDM-356 �(1%rdg + 5 digits) for GDM-394/396 �(2.3%rdg + 5 digits) for GDM-395 �(1.2%rdg + 10 digits) for GDM-350A)
Input Impedance	10M Ω (5M Ω for GDM-350A )(2M Ω for GDM-451)
DC CURRENT
Range	2mA, 20mA, 200mA, 20A (GDM-451) 400uA,4mA,40mA,400mA,4A,10A(GDM-394/396) 200uA, 2mA, 20mA, 200mA, 10A (GDM-350A) 20mA, 200mA, 20A (GDM-356)
Best Accuracy	�(0.5%rdg + 5 digits) for GDM-451 �(0.8%rdg + 1 digit) for GDM-356 �(1%rdg + 2 digits) for GDM-394/396/350A
AC CURRENT (50Hz ~ 400Hz)
Range	20mA, 200mA, 20A (GDM-451/356) 400uA,4mA,40mA,400mA,4A,10A(GDM-394/396)
Best Accuracy	�(0.8%rdg + 10 digits) for GDM-451 �(1%rdg + 3 digits) for GDM-356 �(1.5%rdg + 5 digits) for GDM-394/396s
RESISTANCE
Range	200Ω ~ 200MΩ 7 ranges (GDM-451) 200Ω ~ 200M 7 ranges (GDM-356) 400Ω ~ 40MΩ 6 ranges (GDM-394/395/396) 200Ω ~ 20MΩ 6 ranges (GDM-350A)0
Best Accuracy	�(0.3%rdg + 1 digit) for GDM-451 �(0.8%rdg + 1 digit) for GDM-356 �(1%rdg + 2 digits) for GDM-394/396 �(2%rdg + 5 digits) for GDM-395 �(0.8%rdg + 2 digits) for GDM-350A)
CONTINUITY BEEPER Buzzer sounds if conductance less than 70Ω
DIODE TEST Open Voltage 3.0V typical (1.5V Typical for GDM-395)
CAPACITANCE
Range	2nF, 20nF, 2 018�F, 20 �F (GDM-451) 20nF, 200nF, 2 �F, 100 �F (GDM-356) 40nF,400nF,4 �F,40 �F,100 �F(GDM-394/395/396)F
Best Accuracy	�(3%rdg + 40 digits) for GDM-451 �(4%rdg + 3 digits) for GDM-356 �(3%rdg + 5 digits) for GDM-394/396 �(5%rdg +10 digits) for GDM-395(
FREQUENCY
Range	1Hz~20kHz (GDM-451/356) 10Hz ~ 10MHz (GDM-394/396) 1Hz~99.9kHz (GDM-395)
Best Accuracy	�(1.5%rdg + 5 digits) for GDM-451/356 �(0.1%rdg + 3digits) for GDM-394/396 �(0.7%rdg + 3digits) for GDM-395
TEMPERATURE( )
Range	-40� C ~ 1000�C
Best Accuracy	�1%+30 (GDM-451) �1%+3 (GDM-396/356/350A)
SPECIAL FUNCTION Duty cycle, Auto Ranging (GDM-394/396) True RMS, RS232C (GDM-396)
LCD DISPLAY 4 1/2 digits (GDM-451), 3999 counts (GDM-394/395/396), 3 1/2 digits (GDM-356/350A )
POWER SOURCE Single 9V battery (6F22), Cell Battery for GDM-395(CR2032)
ACCESSORIES Instruction manual , Battery , Test leads
DIMENSIONS & WEIGHT 85(W) x 177(H) x 40(D) mm , Approx.330g (GDM-394/396) 80(W) x 165(H) x 38.3(D) mm, Approx. 275g (GDM-451/356) 73.5(W) x 130(H) x 35(D) mm, Approx. 156g (GDM-350A) 56(W) x 110(L) x 11.5(D) mm, Approx. 97g (GDM-395)(


FEATURES 3999 Counts Auto/Manual Ranging Capacitance, Frequency Measurement Continuity Beeper/Diode Test High Energy Fused For 10A Range Data Hold/Relative Mode	FEATURES Data Hold/Relative Mode True RMS/RS232C 3999 Counts Auto/Manual Ranging High Energy Fused for 10A Range Capacitance, Frequency Measurement Continuity Beeper/Diode Test	FEATURES Slim Pocket Digital Multimeter Data Hold/Relative Mode 3999 Counts Auto/Manual Ranging Capacitance, Frequency Measurement Continuity Beeper/Diode Test


FEATURES * 4 1/2 Digits 19999 counts * Manual Ranging * Continuity Check/Diode Test * Data Hold * Temperature Measurement * Capacitance, Frequency Measurement	FEATURES * 3 1/2 Digits 1999 counts * Manual Ranging * Continuity Beeper/Diode Test * Capacitance Measurement * Frequency, Temperature Measurement	FEATURES * 3 1/2 Digits 1999 counts * Manual Ranging * Continuity Beeper/Diode Test * Temperature Measurement