Reviews Digital Ammeter

Digital Multimeter, NCV Contactless Multi Tester, Battery Tester, Auto-Ranging Tests, Current, Voltage, Resistance, Continuity, Diode, Frequency, Overload Protection, LED Light, 2 Test Leads

..., press the HOLD button to fix the reading, and the data hold button is convenient for reading and recording.
▲Overload Protection : There are two fuses on the internal circuit board of the instrument,two PTC thermistor protection circuits to prevent circuit damage due to wrong measurement.
▲Package Content : 1 x Digital Multimeter, 2 x Test Leads, 3 x AAA Batteries, 1 x User Manual.
▲24-Month Warranty : We provide 24 months unconditional warranty and lifetime after-sales service.

V8 is Global voltage standard ( 100V~240V ) is working.
V8 DIY tester can measures the cathode current of the power tube for bias reading (at low voltage side of the tubes ).
V8 suitable for EL34 KT88 6L6 6V6 5881 6550 KT66 KT100 KT120 7027 etc..
V8 can get the reading direct from the current meter. It does not need any convert from mV to mA..
V8 use LED Amp Meter Ammeter Current Panel. Better performance than LCD..

PROFESSIONAL GRADE: Powerful engine starter boasts 200 cranking amps (12V), which packs enough power to start cars, SUVs, trucks, boats, and other large engines.
50A 12V AND 25A 12V/24V BOOST MODES: The boost modes quickly bring deeply discharged batteries back to life.
PRECISION CONTROL: A 135-minute manual timer gives the user exacting control over the entire charging process.
WORKS WITH MANY BATTERY TYPES: The DSR140 is compatible with 12V and 24V standard, AGM, gel, and deep-cycle batteries.
EASY-TO-READ METER: Visually monitor charging levels with the built-in analog ammeter.

.... Designed with tough edge cover to withstand jobsite drops. Qualified with electrical IEC 61010-1, CAT IV 600V, CAT III 1000V, Class 2, Double insulation safety standards..
⚡【Easy to Use】With loads of functions to help you get the jobs done all in this one versatile digital clamp multitester. Data Hold to freeze reading for easy reading.
Large backlight display ensures clear visibility in dark conditions.
REL to zero out reading before measuring.
Max/Min/Average value recording, etc. 12 months quality warranty and life-time technical support!.

The DC voltage and ammeter can display the measured DC voltage and DC current simultaneously on the same meter screen..
Wide measurement voltage and current range, DC Voltage: DC0-199.9V.
The measured DC voltage and DC current are completely isolated within the meter..
Suitable for chargers, inverters, solar energy, wind driven generator, LED light measurement, etc..

MFJ-931 creates an artificial RF ground! It resonates a random length of wire thrown along the floor and produces a tuned counterpoise. This ground effectively places your rig near actual earth ground potential even if your rig is on the second floor or higher with no earth ground possible..
Also, the MFJ-931 electrically places a far away RF ground directly at your rig -- no matter how far away it is. It reduces the electrical length of the ground connection wire to virtually zero by tuning out its reactance..
The MFJ-931 connects between your rig and a random length of wire or a connecting ground wire. Its tuned for maximum ground current using the built-in RF ammeter. The MFJ-931 Artificial RF Ground covers 1.8 - 30 MHz and measures a compact 7.5W x 3.5H x 7D inches..

Compact, portable and lightweight design.
Standard package includes set of stainless steel vacuum sealing flanges with valves and pressure meter.
Microprocessor based self-tuning PID control provides optimum thermal process with minimal overshoot.
Built-in ammeter and dual voltmeters for easy monitoring and troubleshooting.

PARAMETER --- input voltage range DC 5V-36V.
output voltage DC 1.25V-32V continuously adjustable.
max output current 5A, recommend use of within 4.5A.
max power 75W, recommend use of within 50W..
MULTIMETER --- detect and display voltage, current, power, can be used as voltmeter/ammeter/power meter..
CC & CV MODE --- with constant current mode & constant voltage mode..
currently mode indicator & charging status indicator.

200 CRANKING AMPS OF ENGINE STARTING POWER: The SC1633’s engine start mode boasts 200 cranking amps (12V), strong enough to start cars, SUVs, trucks, boats, and other large engines.
50A AND 25A BOOST MODES: The boost modes—50A 12V, 25A 12V, and 25A 24V—quickly bring even deeply discharged batteries back to life.
WORKS WITH MOST BATTERY TYPES: The SC1633 is compatible with 12V and 24V standard, AGM, gel, and deep-cycle batteries.
EASY-TO-READ METER: The built-in ammeter allows you to visually monitor charging levels.
PRECISION MANUAL CONTROL: The charger’s 135-timer and manual rate selection give users complete control over the entire charging process.