Features: I. Overview 1 using the 2014 version of the latest V1.11 software, using M328 chip,, more features, in addition to the basic functions, as well as extensions. 2 micro-controller uses 8MHz external crystal, the measurement accuracy is better.
Red LED Digital Display AC 0-300V Voltage Test Panel Voltmeter Product Name : 3 1/2 LED Voltmeter Voltage Detection Type : AC Voltage Measure Range : 0-300V LCD Display Size : 5 X 2.4cm/ 2" x 0.94"(L*W) Power Supply : DC 5V ±10%
I googled the patent number and found the following info. The figures on the patent sketches looks slightly different than the piece. Patent number: US 3497806
By clicking "Accept All Cookies", you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts.