SAFE TACH is a portable elevator speed meter that is used to measure the speed and gravity changes of the elevator during the lift process. The instrument does not require two people to cooperate to measure the elevator speed. It greatly improves the efficiency of detecting elevator speed. Technicians no longer have to climb to the top of the elevator to measure actual data and technicians no longer have to stop elevator service in order to obtain data.

DSO8060 Handheld Oscilloscope is a multi-functional digital oscilloscope launched by Hantek Electronics. It has dual channels, bandwidth of 60MHz, maximum real-time sampling rate of 250MSa/s, etc., and can be widely used in engineering measurement, outdoor construction, research, design, education and internship training.

WT588D series voice single chip is a voice chip with integrated MCU and voice circuit developed by Guangzhou WeiChuang Technology Co., Ltd. and Taiwan HuaBang. WT588D series voice single chip has multi-function, good sound quality, wide application range, stable performance and strong advantages, which make up for the narrow application range of various voice chips. MP3 control mode, key control mode, key combination control mode, parallel control mode, one-wire serial control mode, three-wire serial control mode and three-wire serial control I/O port expansion output mode make it possible for application personnel to place products in almost any imaginable places.

This document is the Chinese operation manual for Garmin's 255W üvi, which highlights the precautions and features of using this product.

GPSmap 60CS is a GPS navigation device produced by Garmin Corporation, which supports Chinese language and provides accurate navigation services

This manual provides detailed instructions on how to use the TD-SCDMA/GSM dual-mode digital mobile phone, including turning on/off, installing SIM cards, making phone calls, receiving calls, entering text, menu operations, messages, call logs, settings, scenario mode, SMS news, and weather forecasts, tools, etc.