About the Install Bay 3320

Handy tool for car installations
Handy tool for car installations
Electrical installation is a tricky business — without the proper safety precautions, it can even be dangerous. Rather than risk your new gear, why not use a multimeter to test your connections before throwing the switch? A multimeter measures current, voltage, and resistance — it's a handy tool for car installations (especially car security systems). The Install Bay 3320 is a high-quality, easy-to-use digital multimeter, perfect for chores around the home, workshop, and garage. It's designed for accuracy and convenience, with a rugged exterior casing and protective rubber corner guards that will stand up to just about anything the job requires.
This meter measures eight functions including AC/DC voltage, current, and resistance. And the 3220's auto-ranging feature makes it simple – it sets itself to the correct range so there's no need to twist an "old school" dial to the right setting. The package includes test leads, holders, and a stand. The 3320 is a handy, reasonably-priced tool you'll use over and over again.
Highlights:
- 3-1/2 digit, 9-function digital multimeter
- diode and audible continuity tests
- LED indicators for battery power measurement
- automatically sets itself to the correct range
- auto power off
- color-coded input jacks
- dimensions: 5-1/2"H x 3-1/2"W x 1-1/4"D
- weight: 5-3/4 oz.
- warranty: 60 days
- MFR # 3320
What's in the box:
Install Bay 3320 owner's manual
- Auto-ranging digital multimeter
- 40" Positive lead (red)
- 40" Negative lead (black)
- Owner's Manual
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More details on the Install Bay 3320

Product Research
Features
Auto Ranging Digital Multimeter: This Digital Multimeter is a general-purpose instrument designed for use in general electronics, home electrical applications, and automotive electrical/electronic systems.
Note: The Install Bay Digital Multimeter cannot be used to safely take measurements in high-voltage system in Electric or Hybrid Electric vehicles. A Category III meter rated for 1000 Volts DC will be required.
Test & Measurements: This meter is designed to test or
measure AC voltage, DC voltage, batteries, DC current, AC current, resistance,
diodes, and continuity. Always use extreme caution when working on or around
electrically operated equipment.
DC Volts: Measures DC volts; auto-ranging from 0 to 600 volts (10 MW impedance).
Range | Resolution | Accuracy | Notes |
200.0mV | 0.1mV | ±(0.8% of reading + 5 digits) | Input Resistance:
10MΩ Overload Protection: 600V DC or AC 600V RMS |
2000V | 1mV | ||
20.00V | 10mV | ||
200.0V | 100mV | ||
600V | 1V |
AC Volts: Measures AC volts; auto-ranging from 0 to 600 volts (10 MW impedance).
Range | Resolution | Accuracy | Notes |
2.000V | 1mV | ±(1.2% of reading + 5 digits) | Input Resistance:
10MΩ Overload Protection: 600V DC or AC 600V RMS. Frequency Response: 50 Hz - 400Hz |
20.00V | 1mV10mV | ||
200.0V | 10mV100mV | ||
600V | 1V |
Resistance (OHMS): Measures resistance; auto-ranging from 0 to 20MW (20,000,000W).
Range | Resolution | Accuracy | Notes |
200.0Ω | 100mΩ | ±(1.0% of reading +5 digits) | Overload
Protection: 250V DC or AC RMS. |
2000kΩ | 1Ω | ||
20.00kΩ | 10Ω | ||
200.0kΩ | 100Ω | ||
2.000MΩ | 1kΩ | ±(2.0%
of reading +5 digits | |
20.00MΩ | 10kΩ |
DC Amps: Measures DC current; one range of 10Amps (DC from 0 to 10 amperes) - unfused. Also measures DC current in Milliamps; one range from 0 to 200 milliamps.
Range | Resolution | Accuracy | Notes |
20.00mA | 10μA | ±(1.0% of reading +5 digits) | Overload
Protection: Fuse 315mA/250V Input Voltage Drop: <0.2V. |
200.0mA | 100μA | ||
2.000A | 1mA | ±(2.0% of reading +5 digits | Unfused; 15sec maximum Input Voltage Drop: <0.2V. |
*10.00A | 1mA | ||
*A waiting period of at least 15 minutes is necessary between every 15 second testing period. |
AC Amps: Measures AC current in milliamps; one rang from 0 to 200 milliamps.
Range | Resolution | Accuracy | Notes |
20.00mA | 10μA | ±(1.5% of reading + 5 digits) | Overload
Protection: Fuse 315mA/250V Input Voltage Drop: <0.2V. |
200.0mA | 100μA |
Battery Test (LEDs): Four ranges and three LEDS (green, yellow and red). Tests small batteries; 1.5V, 6V, 9V, and 12V.
Range | Resolution | Load Current | Accuracy | Notes |
1.5V | 0.001V | 10mA (approx.) | ±(5% of reading +5 digits) | Green LED: 1.30V ±0.075V and up. Yellow LED: 0.94V ±0.075V to 1.29V ±0.075V. Red LED: 0.15V±0.075V to 0.93V±0.075V |
6V | 0.01V | 100mA (approx.) | Green LED: 5.22V ±0.3V and up. Yellow LED: 3.76V ±0.3V to 5.21V±0.3V. Red LED: 0.6V±0.3V to 3.75V±0.3V | |
9V | 0.01V | 10mA (approx.) | Green LED: 7.83V ±0.45V and up. Yellow LED: 5.64V ±0.45V to 7.82V±0.45V. Red LED: 0.9V±0.45V to 5.63V±0.45V | |
12V | 0.01V | 200mA (approx) | Green LED: 10.44V ±0.6V and up. Yellow LED: 7.52V ±0.6V to 10.43V±0.6V. Red LED: 1.2V±0.6V to 7.51V±0.6V | |
When the voltage of the battery being tested is lower than 10% of its rated voltage, the red LED will not light. |
Diode/Continuity Tests: For testing diodes and testing for continuity between two points.
Function Range Resolution Description Notes Diode Test 2V 0.1mV Test Current:
1±0.6mA
Test Voltage:
Approx. 1.5VOverload Protection:
250V DC or
AC RMSContinuity Test 200Ω 0.1Ω Approx. 120Ω
or less, buzzer
(beeper) will
sound
Liquid Crystal Display (LCD): The digital multimeter's 3.5" LCD displays the results of your tests and measurements for an easy to see reading.
Battery Operated: The digital multimeter operates off of two AA (1.5V) alkaline batteries.
Automatic Power Off: To save battery power, the digital multimeter will shut off after approximately 15 minutes of non-use.
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The main reason for purchasing the multi meter was I could have my amps/crossovers set exact to get the most power and be matched with each component. It's loaded with features
Kevin from Chattanooga, TN