Skip to content
Usefulldata.com
Usefull information for every day
  • Temperature/Humidity
  • Modules
  • Electricity measurement
  • Non-electrical meters
  • E-bike
  • Other

Category: Electricity measurement

how to improve accuracy of a measurement DDH303L AC voltmeter + ammeter

February 21, 2015 Ivan 1 Comment

I buy theese  cheap AC meter on amazon and ebay his accuracy is not bad and not good  +- 10V on…

Continue Reading →

Posted in: Electricity measurement

How to resolve disputes on ebay and other chinese shops

December 15, 2014 Ivan Leave a comment

My manual shows how to communicate with the seller that the issue is resolved.

Continue Reading →

Posted in: Electricity measurement

AC digital voltmeter 80-500V

April 2, 2014 Ivan Leave a comment

Good voltmeter for low price. AC voltmeter  I bought on Ebay for $ 5 with free postage , its realy good…

Continue Reading →

Posted in: Electricity measurement

Good AC Volt-ammeter wiring (black version)

March 31, 2014 Ivan Leave a comment

If I wanted to measure the voltage in the socket I bought this volt-ammeter. Measured voltage and current simultaneously. This is…

Continue Reading →

Posted in: Electricity measurement

Waterproof voltmeter green, blue,red

March 30, 2014 Ivan Leave a comment

Waterproof voltmeter  is good thing for Motorcycle , 4×4 quad. Voltmeter is realy waterproof and stubborn.

Continue Reading →

Posted in: Electricity measurement

Digital DC Voltmeter 0-100V from china (schematic and diagrams)

March 6, 2014 Ivan 4 Comments

Aliexpress.com Voltmeter Ruideng store 4.00 Buy Now This is a voltmeter that I like to use. 3 usd news for…

Continue Reading →

Posted in: Electricity measurement

Ammeter schematic and diagram

February 23, 2014 Ivan Leave a comment

I buy digital Ammeter (ampermeter) from ebay and i cannot found schematic diagram for this .

Continue Reading →

Posted in: Electricity measurement

Thermometer in Car

February 2, 2014 Ivan Leave a comment

Thermometer in the car. Although it cost $3.40 usd not much but thermometer is not 100% ok , I ordered…

Continue Reading →

Posted in: Electricity measurement

Digital thermometer with probe

January 29, 2014 Ivan Leave a comment

The thermometer is built in a black box that can be installed in the panel . Can measure temperature from…

Continue Reading →

Posted in: Electricity measurement

Thermometer + Hygrometer with integrated sensors

January 28, 2014 Ivan Leave a comment

This type of hygrometer thermometer is useful for measuring the temperature and humidity at home.Temperature and humidity sensors are integrated…

Continue Reading →

Posted in: Electricity measurement

Post navigation

Page 2 of 3
← Previous 1 2 3 Next →

Recent Posts

  • KT3009 socket thermostat with a temperature sensor on the cable.
  • My repair and review of the Gunai MX25 offroad electric bike
  • KT3100 Wall socket temperature controller and timer
  • 36V/48V Huawei e-bike controller 350W review / manual
  • LiitoKala Lii-PD4 charger 18650 Li-ion or NiMH/CD

Categories

  • E-bike
  • Electricity measurement
  • Modules
  • Non-electrical meters
  • Other
  • Temperature/Humidity

Recent Comments

  • Ivan on Multimeter XL830L review
  • Raymond Dunne on Multimeter XL830L review
  • Raymond Dunne on Multimeter XL830L review
  • Raymond Dunne on Multimeter XL830L review
  • Ivan on Digital LED RPM speedometer tachometer with Hall senzor review and wiring diagram

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org

Copyright © 2023 Usefulldata.com — Primer WordPress theme by GoDaddy