Best Low frequency Counter Module

Amrex 2\x2\ Sponge Insert Replacements From Caputron (10 Inserts/Pack)

Design The Output Contact Adopts Relay, Which Can Withstand Large Output Current, And Can Set System Parameters According To The Button, So As To Meet The Application Of Different Occasions..
Characteristics Dc20D Is One Module Used For Diesel Engine Or Generator. The Status Of The Engine And Generator Can Be Checked Conveniently..
MultiFunctional It Is With The Functions Of Auto Start/Stop, Protection And Alarm Indication. Dc Power And Running Situation Is Indicated On The Front Panel..
Easy To Use Add Current, Speed Measurement Display Function, Add Rs485 Interface, Can Be Connected To The Computer..
Good Effects Over Frequency, Low Frequency, Over Voltage, Under Voltage, Low Oil Pressure, High Temperature, Low Water Level, Low Oil Level, Charge Failure, OverTime Stop, Emergency Stop Alarm System As Well As Low Battery Voltage Can Be Indicated In Time..

Application: crystal oscillator, IC socket, DIY PCB universal board, Dupont wire, digital tube, buzzer, Arduino UNO board, PIC programming unit, AVR ATMEL programming unit, connector suite, USB TO TLL module, power module, LCD module, RS232 TO TLL module..
Package includes: 20 x 2 Pin Screw Terminal Block + 15 x 3 Pin Screw Terminal Block + 15 x 4 Pin Screw Terminal Block.

The DSE703 Generator Controller is an Automatic Start Control Module that offers an excellent range of engine monitoring and protection features..
On-site module configuration to match user requirements.
Hours counter provides accurate information for monitoring warranty periods.
Multiple engine parameters are monitored simultaneously.
DSE703 has been designed to monitor over speed, under speed, high engine temperature, low oil pressure, battery charge fail and fail to start..

Includes: PRO-FIND 15 pinpointer, EQX 11" Double-D Smart Coil with Skidplate, Wireless Bluetooth / apt-X Low Latency Headphones, WM 08 Wireless Audio Module.
Multi-Language Screen Protectors, Adjustable Armrest, USB Charging Cable with Magnetic Connector,.
Features: 4 Detect Modes (Park, Field, Beach, Gold).
6 Frequency Options (Multi, 5kHz, 10kHz, 15kHz, 20kHz, 40kHz).
Bluetooth Headphones and WM 08 Wireless Module Supplied.

DC20D is one module used for Diesel Engine or Generator..
It is with the functions of Auto Start/Stop, Protection and Alarm indication. DC Power and Running situation is indicated on the front panel..
The status of the engine and generator can be checked conveniently..
Over Frequency, Low Frequency, Over Voltage, Under Voltage, Low Oil Pressure, High Temperature, Low Water Level, Low Oil Level, Charge Failure, Over-time Stop, Emergency Stop Alarm System as well as Low Battery Voltage can be indicated in time..
The output contact adopts relay, which can withstand large output current, and can set system parameters according to the button, so as to meet the application of different occasions..

Note: Accuracy can only be adjusted to the second digit of the decimal point, less than one-tenth of the precision.
Package Included:1Pcs High Accuracy 1~500 MHz Frequency Counter RF Meter Tester Module For ham Radio(If there are any problems with the product, please send us pictures.Tell us more details about this problem.).
Thank you so much for your purchasing from our store.Any question ,please feel free to contact us..

DC20D is one module used for Diesel Engine or Generator..
It is with the functions of Auto Start/Stop, Protection and Alarm indication. DC Power and Running situation is indicated on the front panel..
The status of the engine and generator can be checked conveniently..
Over Frequency, Low Frequency, Over Voltage, Under Voltage, Low Oil Pressure, High Temperature, Low Water Level, Low Oil Level, Charge Failure,....
The output contact adopts relay, which can withstand large output current, and can set system parameters according to the button, so as to meet the....

THREE PAIRS OF EARBUDS – KZ EDA dynamic driver earphones combos set is tuned by KZ accoustic team many times for the outstanding sound quality. The price of one set of KZ EDA in ear headphones is equal to three pairs of earphones and three music styles to meet your listening needs. The low-frequency dynamic performance is excellent, the mid-high frequency is upgraded, and the three-frequency connection is smooth..
THE GOLD EARBUDS WITH EXTRA BASSY SOUND – Focus on optimizing the mid-lows, making the bass strong and elastic. Deep dive, strong and powerful drum beats, excellent low frequency transient performance, suitable for DJ and songs with heavy metal rhythm. The magnetic gap of 0.15MM brings stronger output performance, lower distortion rate, and more realistic restoration of sound..
THE SILVER EARBUDS WITH BALANCED SOUND – Referring to the Harman curve, the three-frequency is balanced and powerful, the vocals are clear and sweet, the low-frequency dives and the high-frequency is transparent, and the sound texture is strong, suitable for pop music and other genres. Customized 0.035MM diameter high tension voice coil wire makes the vibration frequency more stable and efficient..
TRANSLUCENT CYAN WITH HIGH-RESOLUTION SOUND – On the basis of ex....

Voltage to PWM Signal Converter Module: This module can convert 0-5V or 0-10V analog input voltage into 0-100% PWM signal..
Wide Application: This module is widely used for PWM motor speed control interface circuit, instrumentation AD interface conversion, and other applications that need convert voltage to PWM signal..
PWM Signal Frequency Range: The PWM signal frequency range is 2KHZ-20KHZ, maximum is 20KHZ, default minimum is 2KHZ,Hyuduo is committed to providing customers with high-quality products and thoughtful service..
Setable Output Frequency: The default function of this module is converting 0-10V into 0-100% 2KHZ PWM signal, but the output frequency can be set by adjusting potentiometer as needed,stable and reliable performance, practical, easy to operate and use, has a long service life..
Two Kinds of PWM Signal: There are two kinds of PWM signal, PNP-PWM output and NPN-PWM output. The PNP-PWM output is only 5V level, NPN-PWM output is 5V and 24V level,If you have any problem,please contact us, we will strive to provide you with satisfactory service!.