SMAKN 3 Digits 0.56" 3 Wire Dc 0-100v Blue Led Digital Voltmeter Voltage Display Module with Reverse Protection

SMAKN 3 Digits 0.56" 3 Wire Dc 0-100v

Cutting Size: 45.5 x 26.5mm Dimensions: 48 x 29 x 21mm Range: DC 0-99.9V (need extra Power Supply DC 5-28V) Power Supply: DC 5-28V Display: three 0.56" LED digital tube Display color: green Refresh rate: about 500ms Measuring accuracy: 1% (+ / - 1 digit) Package Include: 1x Digital Voltmeter

  • Brand: SMAKN
  • UPC: 706551574389

Extech CL205 ExStik Replacement Chlorine Electrode Module For Extech CL200 Meter

Extech CL205 ExStik Replacement Chlorine Electrode Module For

Replacement Electrode For Cl200 Chlorine Meter, Application Replacement Electrode For Cl200 Chlorine Meter, Features Can Be Used On Cl200, Ph100 And Ph110 Meters, For Use With Can Be Used On Cl200, Ph100 And Ph110 Meters, Includes Electrode, Manufacturers Length 6 Months

  • Brand: Extech
  • ASIN: B004WN689S
  • UPC: 793950052051

ICStation DC-DC Adjustable Buck Converter 5.3V-32V to 1.2V-32V 12A Voltage Regulator Step Down Module LCD Digital Voltmeter Ammeter with Shell

ICStation DC-DC Adjustable Buck Converter 5.3V-32V to 1.2V-32V

Parameters: Working Voltage: DC 5.3V-32V Output Voltage: DC 1.2V-32V Output Current: 12A (12A need heat sink; 8A is stable for long time) Output Power: 160W (160W need heat sink; 120W is for 8A) Voltage Display Range: 0~32V Voltage Display Precision: +/-0.5V Voltage Display Resolution: 0.05V Current Display Range: 0~12A Current Display Precision: +/-0.3A Current Display Resolution: 0.01A Conversion efficiency: About 96% Working current: 25mA Soft Starter: Yes (Failure at high power load) Anti-reverse Protection: Yes Anti-backflow Protection: Yes Working Temperature range: -20℃~85℃ Working Humidity range: 0%-95%RH Package Including: 1pc 12A Step Down Power Supply Module; 1pcs Heat Sink; 2pcs Acrylic shell; 2pcs Blue button cap; 4pcs M3*15mm Copper column; 4pcs M3*8+6mm Copper column; 8pcs M3*5mm Screw.Attention: If the screen doesn't operate or there is any problem with the module, please contact us by the following link to get support or replacement. Thank you!

  • Color: Blue
  • Brand: IS
  • ASIN: B07KYJ4L48

Extech PH105 ExStik pH Electrode Module

Extech PH105 ExStik pH Electrode

Exstik Ph Electrode, For Use With Extech Ph100

  • Brand: Extech
  • ASIN: B0012VWS1A
  • UPC: 793950051054

Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor

Analog TDS Sensor Water Conductivity Sensor for Arduino

The commonly used TDS testing equipment is a TDS pen. Although it is inexpensive and easy to use, it cannot transmit data to the control system, do long-term online monitoring, and analyze the water quality. Using a special instrument, although the data can be transmitted, the accuracy is high, but the price is very expensive. To this end, we have specially introduced this Arduino-compatible TDS sensor, which can be used to measure the TDS value of water after connecting to the Arduino controller. Designed for arduino, this product is plug and play and easy to use. The wide voltage supply of 3.3~5.5V and the analog signal output of 0~2.3V make this product compatible with 5V, 3.3V control system, which can be easily used in the ready-made control system. The excitation source used for measurement uses an AC signal, which can effectively prevent probe polarization, extend probe life, and increase the stability of the output signal. The TDS probe is a waterproof probe that can be immersed in water for long periods of time.Notice:TDS probes cannot be used in water above 55 °C.The TDS probe should not be placed too close to the edge of the container, as it will affect the display.The head and lead of the TDS probe are waterproof and can be immersed in water, but the connection inter...

  • Brand: DDlong
  • ASIN: B07SKGZ69J
  • UPC: 715718334728

16 LED Dual Channel Audio Level Indicator Light DIY Power Amplifier Lamp Blue/Green/Red Option Light DC 8V-12V VU Meter Module

16 LED Dual Channel Audio Level Indicator Light

100% brand new and high qualityFeatures:S2 is used to select the display pattern in the normal display mode, and it is also cyclic to press one to change one, and the first one will be returned automatically after the last one. S2 is used to lower the brightness by one level until the lowest in the brightness adjustment mode. Long press S2 in normal display mode will enter brightness adjustment mode, and long press S2 in brightness adjustment mode will save brightness and return to normal display mode.light only,other accessories demo in the picture are not included!Notice: 1. can not use ac power supply, do not take over the high voltage2. The position of the corresponding lines on the three boards of the audio signal is marked with R, L and G, which respectively represent the right channel signal, the left channel signal and the signal ground (that is, the negative pole of the circuit board power supply).3. The signal strength should not be too high. The signal strength provided on the general headphone jack is ok.Specification:Type: Electric Level Indicator/16 LED Dual ChannelColor: Red,Green,Blue(optional)Max.Current: app.70mAPower Voltage: DC 8V-12VSignal Input Range: Min 300mV,Max 5V(Attention can not connect to the power amplifier, if the signal is too strong, can not conn...

  • Color: Green
  • Brand: DDlong
  • UPC: 784304107169

Extech EC505 ExStik Replacement pH Electrode/Conductivity Cell Module For Extech EC500

Extech EC505 ExStik Replacement pH Electrode/Conductivity Cell Module

' Replacement Electrode, Features Flat pH Electrode, For Use With G1877942 pH/Conductivity/Temperature Meter '

  • Brand: Extech
  • ASIN: B004WN6EDI
  • UPC: 793950055052

Echo Meter Touch Bat Detector: Listen to, record and identify bats using the Echo Meter Touch hardware module

Echo Meter Touch Bat Detector: Listen to, record

  • Brand: Wildlife Acoustics Inc.
  • ASIN: B0751LRLCD

AC Current Voltage Power Energy Frequency Power Factor Communication Module Meter 100A Ammeter Voltmeter Multimeter with RS485 USB interface and Split Core Current

AC Current Voltage Power Energy Frequency Power Factor

Overview This document describes the specification of the PZEM-014/016 AC communication module, the module is mainly used for measuring AC voltage, current, active power, frequency, power factor and active energy, the module is without display function, the data is read through the RS485 interface. 1.Function description 1.1 Voltage 1.1.1 Measuring range:80~260V 1.1.2 Resolution: 0.1V 1.1.3 Measurement accuracy: 0.5% 1.2 Current 1.2.1 Measuring range: 0~10A(PZEM-014); 0~100A(PZEM-016) 1.2.2 Starting measure current: 0.01A(PZEM-014); 0.02A(PZEM-016) 1.2.3 Resolution: 0.001A 1.3 Active power 1.3.1 Measuring range: 0~2.3kW(PZEM-014); 0~23kW(PZEM-016) 1.3.2 Starting measure power: 0.4W 1.3.3 Resolution: 0.1W 1.3.4 Display format: <1000W, it display one decimal, such as: 999.9W ≥1000W, it display only integer, such as: 1000W 1.4 Power factor 1.4.1 Measuring range: 0.00~1.00 1.4.2 Resolution: 0.01 5 Frequency 1.5.1 Measuring range: 45Hz~65Hz 1.5.2 Resolution: 0.1Hz 6 Active energy 1.6.1 Measuring range: 0~9999.99kWh 1.6.2 Resolution: 1Wh 1.6.4 Display format: <10kWh, the display unit is Wh(1kWh=1000Wh), such as: 9999Wh ≥10kWh, the display unit is kWh, such as: 9999.99kWh 1.6.5 Reset energy: use software to reset

  • UPC: 741722874813

Parts Express 7A DC 60V Adjustable Step Down Regulator NC Power Supply Current Voltage Meter Buck Module

Parts Express 7A DC 60V Adjustable Step Down

Drop your voltage from up to 60 VDC down to 5 VDC with this DC to DC buck converter with voltage and current backlit display. Use it with an AC adapter for a standalone DC variable 5A power supply or add it to a project where two different output voltages are required from one power supply.

  • Brand: Parts Express
  • UPC: 848864057675

Analog pH Sensor Meter Pro Kit Arduino of Raspberry Water Quality Tester Kit Ph Sensor Module PH Meter Measuring Element Water Quality Detection in Aquariums Arduino Controller

Analog pH Sensor Meter Pro Kit Arduino of

Need to measure water quality and other parameters but haven't got any low cost pH meter? Find it difficult to use with Arduino? Here comes an analog pH meter, specially designed for Arduino controllers and has built-in simple, convenient and practical connection and features. It has an LED which works as the Power Indicator, a BNC connector and PH2.0 sensor interface. To use it, just connect the pH sensor with BNC connector, and plug the PH2.0 interface into the analog input port of any Arduino controller. If pre-programmed, you will get the pH value easily. Comes in compact plastic box with foams for better mobile storage. Attention:In order to ensure the accuracy of the pH probe, you need to use the standard solution to calibrate it regularly.Generally, the period is about half a year. If you meaure the dirty aqueous solution, you need to increase the frequency of calibration. Applications Water quality testing Aquaculture Specification Module Power : 5.00V Module Size : 43mm×32mm Measuring Range:0-14PH Measuring Temperature :0-60 ℃ Accuracy : ± 0.1pH (25 ℃) Response Time : ≤ 1min pH Sensor with BNC Connector PH2.0 Interface ( 3 foot patch ) Gain Adjustment Potentiometer Power Indicator LED Cable Length from sensor to BNC connector:660mm

  • Color: 161
  • Brand: Swvzwy
  • UPC: 667176036747

Extech PH115 ExStik Replacement Refillable pH Electrode Module For Extech PH100/PH110 Meter

Extech PH115 ExStik Replacement Refillable pH Electrode Module

Extech PH115 ExStik Replacement Refillable pH Electrode Module, Interchangeable with ExStik Chlorine or ORP Meters, Provides an Economical way to Refill your Electrode Key Features Easy to clean, rugged flat surface Refillable pH electrode Interchangeable with ExStik Chlorine or ORP meters Provides an economical way to refill your electrode Eliminates the problem of limited electrode shelf life, contamination, and usage life Complete with protective connector cap ATC via built-in Pt-100Ohm sensor

  • Brand: Extech
  • ASIN: B004WN6SH0
  • UPC: 793950051153

PZEM-004T Current Voltage Power Energy Multimeter Module AC 80-260V 100A with Current Transformer

PZEM-004T Current Voltage Power Energy Multimeter Module AC

This is an electric monitoring test module with a current transformer. The module can be used to test power, energy, voltage as well as current, and then display on a PC or other terminals. Designed with one key reset button, you can reset energy data by simply pressing one button. Moreover, it can store data when power off, and store the accumulated energy data before power off, so it is very convenient to use it. It can be widely used with power distribution box, distribution cabinet, voltage regulators, teaching aids and household small distribution box.   Specifications: Working Voltage: 80~260VAC Test Voltage: 80~260VAC Rated Power: 100A/22000W Working Frequency: 45-65Hz Measurement Accuracy: ±1.0% Board Size: 7.3×3×2.3cm / 2.87×1.18×0.9"   Package Includes: 1×Multimeter Module(USB adapter is not included) 1×Current Transformer(random color)   Note: 1.This is an indoor module and can not be used outdoors. 2.Load can be over rated power. 3.Wiring can not be wrong.

  • Color: popular
  • Brand: Walfront
  • UPC: 736691419295

Fluke A3002 FC Wireless AC/DC Current Module Multimeter

Fluke A3002 FC Wireless AC/DC Current Module

Clamp on meters are designed with jaws that open and close to fit around a conductor to measure AC or DC currents.

  • Brand: Fluke
  • ASIN: B00JJQ49MQ
  • UPC: 095969723572

LM317 Adjustable Voltage Regulator Step-down Power Supply Module LED Meter

LM317 Adjustable Voltage Regulator Step-down Power Supply Module

LM317 Adjustable Voltage Regulator Step-down Power Supply Module LED Meter Features: ◆ Board core components: adjustable regulator ASIC LM317, 2A or less can be loaded, AC or DC voltage input, the output voltage is 1.25V-28V DC continuously adjustable, versatile DC board. ◆ Using double adjustment potentiometer: when using LM317T for adjustable power supply, often lead to output voltage increases and burned the load due to potentiometer poor contact. We designed this regulator board using double potentiometer to ensure good contact, effectively protect the load. Specifications: Input: DC:0-30v / AC:0-22V Output: DC 1.25-28V Output current: 2A(Max) The minimum differential between input and output: 3 volts; input must be higher than the output voltage above 3V to be regulated. Buck, not boost, when input 5V output 1.25-2V, not 6V. Circuit board size: approx. 69 x 50 x 27mm (L x W x H) Note: Due to the digital voltage display module operating voltage is 3V, only when the voltage is higher than 3V to display properly Package Included: 1 x LM317 Adjustable Voltage Regulator Step-down Power Supply Module with LED Meter

  • Color: NA
  • Brand: BephaMart
  • ASIN: B01M1P6FYU
  • UPC: 644766932238

UCEC MB102 3.3V/5V Breadboard Power Supply Module for Arduino Board Solderless Breadboard (Pack of 6)

UCEC MB102 3.3V/5V Breadboard Power Supply Module for

Features1.Apply to MB102 breadboard.2.Input voltage: 6.5-12 V (DC) or USB power supply. 3.Output voltage: 3.3V/5V can switch over.4.Fluctuation two road independent control, can switch over to 0 V, 3.3 V, 5 V. 5.Maximum output current:

  • Color: 6 Pack
  • Brand: UCEC
  • UPC: 746856459271

Digital Psychrometer Thermo-Hygrometer,Preciva LCD Mini Temperature and Humidity Meter with Dew Point and Wet Bulb Temperature Hygrometer for Industry, Agriculture, Meteorology (Thermo-Hygrometer)

Digital Psychrometer Thermo-Hygrometer,Preciva LCD Mini Temperature and Humidity

Specifications: ● Display: Large 4-1/2 dual digital LCD display ● Sensor Type: A single chip relative humidity and temperature muti sensor module comprising a calibrated digital output. ● Response Time: %RH: 10S (90% at +25 °C still air) ● Accuracy Note: Accuracy is specified for the following ambient temperature range: 64°F to 82°F (18°C to 28°C) ● Sampling Rate: 2.5 samples per second ● Polarity: Automatic, (-) negative polarity indication ● Dewpoint Temperature: -20 °C~80 °C (-4 °F~176 °F) ● Wet Bulb Temperature: 0 °C~80 °C (32 °F~176 °F) ● Operating Conditions: 32°F to 104°F (0°C to 40°C); < 80% RH non-condensing. ● Storage Conditions: 14°F to 140°F (-10°C to 60°C); < 80% RH non-condensing. ● Power: One standard 9V, NEDA 1604 or 6F22 battery ● Dimensions: 175 x 58 x 35 mm ● Weight: 143g ● Humidity/ Temperature Measurement Range: ● ● Humidity: 0%~100%RH ● ● Temperature: -20 °C~80 °C (-4 °F~176 °F) ● ● Resolution: 0.01%RH, 0.01°C/0.01°F ● ● Humidity Accuracy: ±3%RH (at 25°C, 20%~80% RH); ±3.5%RH (At other ranges) ● ● Air Temperature Accuracy: ±0.5°C/±0.9°F (at 25°C); 0.8°C/±1.5°F (all other ranges) Notice: ● Do not put the sensor in the liquid or expose the sensor to sunl...

  • Color: Thermo-Hygrometer
  • Brand: Preciva
  • ASIN: B071WLDY82
  • UPC: 602191689035

bayite DC 6.5-100V 0-20A LCD Display Digital Ammeter Voltmeter Multimeter Current Voltage Power Energy Battery Monitor Amperage Meter Gauge with Built-in Shunt

bayite DC 6.5-100V 0-20A LCD Display Digital Ammeter

Main Specifications: Working voltage: DC 6.5 ~ 100V Measuring Accuracy: 1% Power Consumption: 0.2W Measurement speed: 2 times/s Store Energy data when power off. Can be reset to 0. The blue backlight can be turned on/off manually Test Range and Display format: 1.Active Power test range: 0~2kW 2.Energy test range: 0~9999kWh 3.Voltage test range: DC 6.5~100V 4.Current test range: 0~ 20A Precautions 1. This module is only suitable for 6.5~100V DC power. 2. Applied load should not exceed the rated power. 3. Wiring order cannot be wrong. 4. This module is suitable for indoor, please do not use outdoor. Packing including: 1x DC 6.5-100V 20A Power Multimeter

  • Brand: bayite
  • ASIN: B013PKYAV6
  • UPC: 711463670234

2 Pcs VU Panel Meter Warm Back Light Recording+Durable Driver Board Module+Cables

2 Pcs VU Panel Meter Warm Back Light

Features:VU Meter:Stable and reliable performance.Easy to use.Driver Board:The fourth generation driver board, further sharpen the edge of the size.The fourth generation of driver board drive board instead of perfect Toshiba 7318IC, improved drive 7318 2 disadvantages: small swing pointer plate; adjust small sensitivity.Small space, easy to install.Well done and durable.Instructions:1. In AC/ DC 12-15V Power Supply for Transmission Plate. (recommended independent power transformer, or a separate winding power supply plate when not in use 45MA current backlight).2. L, GND, R: This is the driver board The low-level signal input terminals for connections are CD players, computer sound cards, the first stage, and other audio source signal device, L, GND wiring , RW respectively: To the left, the right channel can be.3. R1 and R2 are two adjustable resistors board driver can control the size of the swing hands.4. The backlight DC12V power meter is used after the driver board backlight used for voltage regulator.5. Note that the positive and negative head interfaces.To extend bulb backlight life, you can use the following method:1. Backlight brightness according to the conditions to meet the requirements to reduce the operating voltage, can be considerably longer lasting.2. AC Power 10...

  • Brand: LOLOVI
  • ASIN: B07SX7SF4T

Fundamentals of Flow Measurement (An Independent learning module from the Instrument Society of America)

Fundamentals of Flow Measurement (An Independent learning module

Book by Decarlo, Joseph

  • Brand: Brand: Instrumentation Systems
  • ASIN: 0876646275

Rachio Smart Sprinkler Controller, 8 Zone 2nd Generation, Works with Amazon Alexa

Rachio Smart Sprinkler Controller, 8 Zone 2nd Generation,

Take the guesswork out of watering with a Rachio Smart Sprinkler Controller. The easy-to-use mobile app lets you manage your sprinklers without running back and forth to the controller, while automatic weather adjustments mean no more watering in the rain. Get peace of mind - Rachio knows just how much water your yard needs. Control your sprinklers using a smartphone or with category-leading smart home integrations, including Amazon Alexa and more. Master Valve-Compatible with master valve, pump relay, or indexing valve. Wi-Fi Connection - Wi-Fi (2.4GHz) required. Supports dedicated 2.4GHz and dual-band networks. Cannot operate on 5 GHz only networks. Sensors Rain Sensor - Wired & Wireless Normally Closed (NC) sensors, Soil Sensor - Wired & Wireless Normally Closed (NC) sensors, Wired Flow Sensors

  • Color: Whiter
  • Brand: Rachio
  • UPC: 680140538825

LEGO Ideas NASA Apollo Saturn V 21309 Outer Space Model Rocket for Kids and Adults, Science Building Kit (1900 pieces)

LEGO Ideas NASA Apollo Saturn V 21309 Outer

The meter-high LEGO NASA Apollo Saturn V is the perfect model rocket to both display and role play with. Packed with authentic details, it features 3 removable rocket stages (first, s-ii second, and s-ivb third) a launch escape system, a command and service module along with the Lunar Lander and Lunar Orbiter to recreate a rocket launch and splashdown landing. There are also 2 new-for-june-2017 Astronaut minifigures and 1 microfigure for role-play recreations of the Moon landings. This building toy includes an informational booklet about the manned Apollo missions and the fan designers who created this educational LEGO Ideas set. Builders have the option to horizontally display the Saturn V model with the 3 stands.

  • Brand: LEGO
  • ASIN: B071G3QMS2
  • UPC: 673419292177

Gowoops 2 PCS DHT22 Temperature Humidity Sensor Module Digital Measurement for Arduino Raspberry Pi 2 3

Gowoops 2 PCS DHT22 Temperature Humidity Sensor Module

User Manual: DHT22 temperature and humidity sensorOperate Voltage: DC 3~5.5VSignal Output Type: DigitalTemperature Range: -40 ℃ ~ 80 ℃Temperature Measurement Accuracy: ± 0.5 ℃Humidity Range: 0~100%RHHumidity Measurement Accuracy: ± 2%RH Dimensions:Size: 40 x 15 x 9 mm (L / W / H)Screw hole diameter: 2.6mmWeight: 6gPackage included:2 x DHT22 Sensor Module2 x Cable

  • Color: Dht22*2
  • Brand: Gowoops
  • ASIN: B073F472JL
  • UPC: 705586405750


  • Brand: Ecm
  • ASIN: B07B5Y6PL4
  • UPC: 602567358671
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