MECO 135B+ TRMS Auto Ranging Digital Multimeter
The MECO 135B+ TRMS is a high-precision, auto-ranging digital multimeter designed for professionals and hobbyists alike. With a 9999-count True RMS display, this multimeter ensures accurate measurements even on non-linear loads. It features a compact design with a large LCD backlight display, making it easy to read in dimly lit areas. Equipped with essential safety features like NCV (Non-Contact Voltage) detection and overload protection, the Meco 135B+ is a reliable tool for troubleshooting electrical and electronic issues.
Key Features:
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True RMS Accuracy: Provides precise AC voltage and current measurements.
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High-Resolution Display: 4-digit, 9999-count screen for detailed readouts.
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Auto & Manual Ranging: Choose between automatic or manual range selection for greater control.
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NCV Detection: Identify live wires safely without making physical contact.
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Backlight & Data Hold: Ideal for use in low-light or hard-to-reach areas.
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Comprehensive Measurement Functions: Supports DC/AC voltage and current, resistance, capacitance, frequency, duty cycle, and temperature measurements.
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Enhanced Safety: Rated for CAT II 1000V and CAT III 600V environments.
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Technical Specifications:
Electrical Specification:
Function
Range
Resolution
Accuracy
DC Voltage
(Auto & Manual Ranging)
9.999mV
99.99mV
999.9mV
9.999V
99.99V
999.9V
0.001mV to 0.1V
± (0.5% + 3)
AC Voltage
(Auto & Manual Ranging)
9.999mV
99.99mV
999.9mV
9.999V
99.99V
750.0V
0.001mV to 0.1V
± (1.0% + 3)
DC Current
(Auto & Manual Ranging)
99.99µA
999.9µA
999.9mA
9.999A
0.01µA to 0.001A
± (0.8% + 3)
± (0.8% + 3)
± (1.0% + 3)
± (1.0% + 3)
AC Current
(Auto & Manual Ranging)
99.99µA
999.9µA
999.9mA
9.999A
0.01µA to 0.001A
± (1.0% + 3)
± (1.0% + 3)
± (1.2% + 3)
± (1.2% + 3)
Resistance
(Auto & Manual Ranging)
99.99Ω
999.9Ω
9.999kΩ
99.99kΩ
9.999MΩ
99.99MΩ
0.01Ω to 0.01MΩ
± (1.0% + 3)
± (0.5% + 3)
± (0.5% + 3)
± (0.5% + 3)
± (0.5% + 3)
± (1.5% + 3)
Frequency
99.99Hz to 10.000MHz
0.01Hz ~ 1kHz
± (0.1% + 2)
Duty Cycle
1% ~ 99%
0.1%
± (0.1% + 2)
Temperature
-20°C ~ 1000°C
-4°F ~ 1832°F
1°C / 1°F
± (2.5% + 5)
Capacitance
9.999nF
99.99nF
999.9nF
9.999μF
99.99μF
999.9μF
9.999mF
1pF to 1µF
± (5.0% + 20)
± (2.0% + 5)
± (2.0% + 5)
± (2.0% + 5)
± (2.0% + 5)
± (2.0% + 5)
± (5.0% + 5)
General Specification:
Specification Detail
Brand
MECO
Model
135B+ TRMS
Display
4 Digits, 9999 Counts LCD with Backlight
Operating Conditions
0°C to +50°C, 0 - 75% RH (Non-condensing)
Storage Conditions
-20°C to +60°C, 0 - 80% RH (with battery removed)
Sampling Rate
3 times per second (approx.)
AC Response
40Hz ~ 1KHz
Safety Rating
CAT II 1000V, CAT III 600V
Power Supply
2 x 1.5V 'AAA' Batteries
Battery Life
200 hours
Dimensions
130 x 65 x 32 mm (approx.)
Weight
130gms including battery (approx.)
Special Functions
Diode Test, Audible Continuity, Data Hold, Auto Power Off, Low Battery Indication
What's Included In The Box:
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1 x Meco 135B+ TRMS Digital Multimeter
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1 x Pair of Test Leads
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2 x 1.5V 'AAA' Batteries
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1 x Instruction Manual
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1 x K Type Thermocouple (Temperature Probe, up to 260°C)
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1 x Drawstring Pouch
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