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Standard ST-9989 True RMS Auto Ranging Digital Multimeter and Oscilloscope

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Quoting product code: A99RL


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About this product


  • Multimeter and oscilloscope functionality
  • Autoranging to ensure best scale is selected
  • Large 320 x 240 TFT display

Product overview

• Multimeter and oscilloscope functionality
• Autoranging to ensure best scale is selected
• Large 320 x 240 TFT display
• High speed 20MHz bandwidth with 50ms sample rate
• Bluetooth connectivity for computer and smartphone logging

What does a multimeter do?
A multimeter allows you to measure voltage, current or resistance. With a multimeter you can diagnose where a problem is in an electronic circuit or check to ensure that the component you are using is the value that you expect.

What is the advantage of a multimeter being autoranging?
The autoranging functionality on the multimeter will ensure that the multimeter is taking the measurement in the most suitable range. The range selected will alter the precision of the reading which is taken.

What are the advantages of an oscilloscope?
An oscilloscope allows you to take a reading and view it over a period of time. If you are measuring something which is changing it is very difficult to get an accurate reading using a traditional multimeter.

what dose it come with????

Asked by: 87tim
The package contents are as follows; 1 x Standard ST-9989 2 x 1m test lead set ( 4mm sockets, 1 positive and 1 negative) 2 x Probe ends (1 positive and 1 negative) 2 x Crocodile clip ends (1 positive and 1 negative) 1 x K-type Thermocouple & Adapter 1 x Oscilloscope probe & Adapter 1 x Charging Adapter 1 x Power supply User manuals & Software
Answered by: Gareth
Date published: 2017-01-27
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