OTC 3908 AMP (Clamp DMM)

OTC 3908 AMP (Clamp DMM)

OTC’s 3908 AMP clamp multimeter was basically designed to measure current accurately. Now it is equipped with all basic functions of a multimeter. Its colorful front is different and gives it a toy-like appearance. An eccentric meet of jaws has given it a funny look which rarely goes with a useful instrument. However, it has all fundamental functions of an Auto electrician’s need.


As a clamp meter OTC 3908 AMP enables you to measure current most conveniently. Due to the presence of the clamps it’s very simple to measure starting and charging currents in an automobile. Voltage and other parameters vital for automotive diagnosis are possible to measure with this meter. This DMM measures Duty cycle, Resistance, Capacitance, frequency and temperature. Moreover it’s capable to test diodes and continuity. It may be termed as an all in one measuring tool for automotives.


This instrument has got some really useful features to mention. These are appended below:

  • Auto/Manual Range selection
  • Automatic zero adjustment
  • Over range indication
  • Low battery symbol
  • Data hold option
  • Max. allowable voltage AC/DC 600V
  • Max Allowable current AC/DC 1000A
  • Automatic reverse polarity indication
  • Auto power off

Hence as an automotive technician you may select this meter for your job. It won’t frustrate you in service. The package includes the DMM, Test leads, temperature probe, soft case to carry and a 9V battery. It may be the right choice for you at the price.

Price: $103.54

OTC 3910 55 Series

OTC 3910 55 Series

OTC 3910 55 is a digital tool with all basic functions present at an economic price. An electrician would find almost all his measurement and testing problems resolved with it. It also contains a good range of Automotive testing functions.

This instrument has auto and manual range setting provisions. You can test a diode’s wellness with it. It gives warning on detecting continuity between the two points under test.

Data holding of a test result is possible on it and from a fluctuating result the maximum value is detected by this meter.

You get the facility of measuring temperature on an OTC 3910 55 instrument. It’s a good multimeter with almost all functions necessary for an Auto Electrician at a very advantageous price

Price: $50.99

OTC 3505A 100 Series

OTC 3505A 100 Series

OTC 3505A 100 is the latest version multimeter from this manufacturer intended to be used mainly for automotive testing purposes. It has advantageous features like auto ranging. So the user doesn’t have to think much about the setting of correct range.

It has been equipped with all normal testing facilities of a common multimeter. Moreover this tool is provided with a lot of new features for troubleshooting of an automobile. Specific automotive test functions have enabled it to become a preferred tool for an automobile engineer and an auto electrician.

It has features like Auto/Manual range selection, resistance, continuity, diode and capacitance testing provision, RPM measurement, Temperature measurement in both degree F and degree C. For automobiles it presents Millisecond pulse width and Peak voltage measurement of Fuel Injectors, Duty cycle and Frequency measurement, Dwell measurement, Cross count of Oxygen and relative measurement.

It can measure a very low resistance correctly even subtracting the lead resistance of the meter. This instrument has got data recording option for facilitating a fluctuating parameter to measure. It holds a measured value by the push of a button. OTC 3505A 100 series has a capacity to measure up to  10 amperes directly through it and for further higher currents it is supplied with inductive clampers. This instrument has Automatic power off feature on it but this can be disabled if you like to.

Its RPM measurement probe and temperature measuring thermocouple is supplied along with the instrument. So it can be said that it’s an all-in-one equipment to detect faults in vehicles. Moreover, it provides a lot of information for an electrical engineer or an electrician.

Price: $177.74

Go to Top