1 / 7AstroAI AM33B Digital Multimeter, 2000 Counts
AstroAI AM33B is a battery-powered digital multimeter listed with a backlit LCD and 2000 counts. It covers common household and automotive troubleshooting, but it cannot measure AC current, so check that limitation against your intended jobs.
At a glance
- Backlit LCD is intended to aid use in dimly lit areas.
- Supports AC and DC voltage, DC current, resistance, diode and continuity checks.
- 1.5V and 9V battery modes are described as detecting and displaying battery status automatically.
- Data hold, auto shutoff, continuity buzzer and low-battery indication are listed.
Often bought together
Soldering Iron Kit 80W LCD Adjustable Temp 180-520°C Welding Tool,Black | 15s Fast Heat 13-in-1 Electric Solder Gun with 50g Solder Wire, 5 Soldering Tips, Desoldering Pump, Wire Stripper, Tweezers
£16.98
BEEYUIHF Liquid Solder Flux Dropper, Liquid Soldering Flux, No Clean Liquid Flux, Electrical Liquid Rosin Flux Solder, Liquid Flux Soldering Squeeze Bottle (30 mL/1.05Oz.)
£5.99
Pros and cons
Pros
- A useful spread of measurements for basic household checks and automotive electrical troubleshooting.
- Dedicated 1.5V, 9V and 12V battery test modes add a practical battery-checking option.
- The backlight and continuity buzzer can help with checks where visibility or audible feedback is useful.
Cons
- It cannot test AC current, which rules it out for jobs that specifically require that measurement.
Technical specifications
13 specifications| Brand | AstroAI |
|---|---|
| Model | AM33B |
| Display style | Digital |
| Display count | 2000 Counts |
| Power configuration | Battery Powered |
|---|---|
| Battery test modes | 1.5V, 9V, and 12V |
| Measurements listed | AC/DC Voltage, DC Current, Resistance, and Diode |
|---|---|
| Other functions | Data Hold, Auto Shutoff and Continuity Buzzer |
| Safety specification listed | CAT III 300V |
| Dimensions listed | 7.7 x 13.4 x 3.7 centimetres |
|---|---|
| Weight listed | 0.15 Kilograms |
| Colour | Red |
|---|---|
| Protection features claimed | Double fuse is anti-burn and protects from overloading. The silicone cover can protect the multimeter from failing damage and prevent electric shocks. |
What to know before buying
- The manufacturer says the meter cannot test AC current. The listing identifies CAT III 300V and claims double-fuse and silicone-cover protection, but these are manufacturer claims and do not establish suitability for every electrical task. Set the meter correctly before testing.
What’s in the box
- MultimeterIncluded
- Test leads (1 pair)Included
- User manualIncluded
- BatteriesCheck selected pack
Check which accessories are included in your selected pack before buying.
Who is it for?
A good fit for
- DIY users checking household electrical issues, batteries or automotive circuits within the listed measurement functions.
- Hobbyists who want a compact meter with a backlit display and continuity buzzer.
Less suited to
- Buyers who need AC-current measurement or a meter for tasks beyond its listed capabilities.
Customer reviews on Amazon
- 5 stars
75% 75% - 4 stars
18% 18% - 3 stars
4% 4% - 2 stars
1% 1% - 1 star
2% 2%
Customer feedback describes the meter as straightforward to use, compact and useful for DIY, with reported praise for readings, accuracy, build quality and the display. These are customer perceptions, not independent performance verification. The generally positive rating profile offers a favourable signal, but ratings alone do not establish measurement accuracy or suitability for tasks such as AC-current testing, which the listing says is unsupported.
Positive themes
- Customer feedback highlights ease of use, compact size, functionality and versatility.
- Customers report positive impressions of accuracy, build quality and the display.
Frequently asked questions
Can the AM33B measure AC current?
No. The listing specifically says this meter cannot test AC current. It lists AC and DC voltage, DC current, resistance and diode measurement.
What battery types can it test?
The listed battery test modes are 1.5V, 9V and 12V. The description says the 1.5V and 9V modes automatically detect and display battery status.
What is included?
The manufacturer’s included-components list names one multimeter, one pair of test leads and one user manual. A feature description also mentions batteries, but batteries are absent from that explicit contents list, so check the selected listing.
Does it have a backlit display and continuity buzzer?
Yes. Both are listed features, along with data hold and auto shutoff.
Alternative options
TESMEN TM-510 Digital Multimeter, 4000 Counts, Smart measurement, Auto-Ranging Voltage Tester; Voltmeter with Non-Contact Voltage Function, Measures AC/DC Voltage, Resistance, Continuity – Green
£16.99
Crenova MS8233D Digital Multimeter TRMS 6000 Counts Auto-Ranging Voltmeter | Measures AC/DC Voltage，Current，Resistance，Capacitance，Continuity，Diode，Duty Cycle，Frequency，NCV，LCD with Backlight
£22.99
Digital Multimeter Voltmeter Battery Voltage Multi Tester, AC/DC Current | Continuity and Electrical Meter for Ohms, Volts, Amps, Resistance, Diodes and Transistors, Features a Large Backlit LCD
£8.98
AstroAI TRMS 6000 Counts Digital Multimeter with Auto-Ranging, CAT III 600V | Volt Meter with Backlit LCD, Multimeter Tester Measures Voltage, Current, Frequency, Temperature, Continuity, Capacitance
£21.92
Crenova Digital Multimeter 6000 Counts TRMS 1000VDC/750VAC Auto-Ranging | Measures AC/DC Voltage，Current，Resistance，Capacitance，Diode，Continuity，Transistor(hFE)，Temperature，NCV Voltmeter
£33.97
COCZOW Multimeter Digital Multimeter Voltage Tester Volt Meter Ohmmeter Ammeter AC DC OHM Continuity Circuit Resistance Diode Electrical Tester with Test Leads Backlight LCD Display
£19.99
AstroAI Auto Ranging Multimeter with NCV, 4000 Counts Volt Meter with Case | Backlit Display Electrical Tester Measures AC/DC Voltage Resistance Continuity, Automotive Electrical Tester for DIY Home
£13.25
Digital Multimeter Voltmeter Battery Multi Tester Voltage Ohmmeter AC DC | Ammeter with LCD Display Backlight, Volt OHM Amp Current Meter Continuity Circuit Resistance Diode Electrical Tester
£8.98
AstroAI Digital Multimeter TRMS 4000 Counts(Auto Ranging and Manual) | Volt Meter with Backlit LCD; Voltage Tester Measures Current, Temperature, Frequency, Continuity; Tests Resistance, Diodes
£20.99
Solder,0.8mm Solder Wire Lead Free Sn99.3 Cu0.7 with Rosin Core for Electronic Electrical Soldering Components Repair and DIY(20g)
£3.79
BSIDE A1X Smart Digital Multimeter Mini Non-Contact Voltage Detector Rechargeable with Adjustable Sensitivity ID Pointer Auto Range Voltage Continuity Ohm Frequency Tester Capacitance Diode Meter
£21.99
