It could be used to measure DC voltage, AC voltage, DC current, AC current, resistance, temperature, capacity, frequency / duty cycle, diode and make on-and-off test. Meanwhile, it is available for unit symbol display, automatic/manual range switching, automatic power off and alarm function. The complete machine takes an integrated circuit which can directly drive LCD 8-bit microprocessor and double-integrating A/D switching and a digital display drive offering high resolution and high precision.
Due to its complete functions, high measurement accuracy and convenient operation, the multimeter is the ideal tool in laboratory and factory as well as for radio fans and family.
Specifications |
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Model |
Range |
81B |
81D |
||
DC V |
200mV/2V/20V/200V/600V |
±(0.5% + 4) |
--- |
||
400mV/4V/40V/400V/600V |
--- |
±(0.5% + 4) | |||
AC V |
200mV/2V/20V/200V/600V |
±(0.8% + 6) |
--- |
||
4V/40V/400V/600V |
--- |
±(0.8% + 6) |
|||
DC A |
200uA/2000uA/20mA/200mA/10A |
±(1.0% + 10) |
--- |
||
400uA/4000uA/40mA/400mA/10A |
--- |
±(1.0% + 10) |
|||
AC A |
200uA/2000uA/20A/200mA/10A |
±(1.5% + 10) |
--- |
||
400uA/4000uA/40mA/400mA/10A |
--- |
±(1.5% + 10) |
|||
Resistance |
200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ |
±(0.8% + 4) |
--- |
||
400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ |
--- |
±(0.8% + 4) |
|||
Capacity |
4nF/40nF/400nF/4uF/40uF/100uF/1000uF |
--- |
±(4.5% + 8) |
||
Frequency |
1Hz/10Hz/100Hz/1kHz/10kHz/100kHz/1MHz/30MHz |
--- |
±(0.5% + 10) |
||
Temperature |
(-20~1000)°C/(0~1832)℉ |
±(0.5% + 5) |
±(0.75% + 5) |
Features |
|||
Model |
81B |
81D |
|
Diode test |
√ |
√ |
|
Continuity buzzer |
√ |
√ | |
Low battery indication |
√ |
√ |
|
Data hold |
√ |
√ |
|
Auto power off |
√ |
√ |
|
Relative measurement |
--- |
√ |
|
10A fuse |
√ |
√ |
|
Shockproof protection |
√ |
√ |
|
True RMS |
--- |
√ |
|
Unit symbol display |
√ |
√ |
|
Max. value measurement |
√ |
√ |
|
Duty cycle measurement |
--- |
0.1-99.9% |
|
lnput impedance |
10MΩ |
||
Sampling rate |
3 times/s |
||
AC Frequency response |
(50-200) Hz |
||
Operation way |
Auto/Manual range |
||
Max. Display |
1999 |
3999 |
|
LCD size |
61 x 36mm |
General Information |
||
Model |
81B |
81D |
Power Supply |
2 * 1.5V AA Battery |
|
Product weight |
185g |
|
Product size |
145x74x36mm |
|
Product color |
black + orange |
|
Standard accessories |
Test leads, manual, temperature probe, batteries |