Reference: RBD-1066

Mini Metal Detector Module

6 reviews

Operating voltage: 5V DC. Detector distance: 1CM. Adjust the potentiometer, let the modules work normally. Small and easy to use module. It comes with a Buzzer for metal detection indication.The Mini Metal Detector Module arrives disassembled, requiring assembly using a soldering iron and soldering accessories. Moderate knowledge of soldering and...

Reference: RBD-1675

PZEM-004T V3.0 AC Digital Multifunction Meter Watt Power Volt Amp With Coil 100A

1 review

Model: PZEM-004T Operating Voltage: 80-260VAC Test Voltage: 80-260VAC Rated Current: 100A Rated power: 100A / 22000W Operating frequency: 45-65Hz Measurement accuracy: 1.0

Reference: RBD-1168

Digital TDS Meter Monitor TEMP PPM Tester

1 review

Item Name: TDS meter Meter Material: Plastic Display: LCD Digital Accuracy: +/- 2% Range: 0-9990 ppm

Reference: RBD-1835

Non-invasive AC current Sensor Split Core Current Transformer SCT-013-050 50A

1 review

Input current (RMS): 50A. Work temperature: -25℃～+70℃. Storage temperature: -30℃～+90℃. Work voltage: 660V. Frequency range: 50Hz-1KHz.

Reference: RBD-1405

Turbidity Sensor Suspended Turbidity Value Detection Module Kit

3 reviews

Working voltage: 5.00V DC Working current: 40mA (MAX) Response time: <500ms Insulation resistance: 100MΩ (Min) Analogue output: 0~4.5V; Digital output: high/low-level signal (the corresponding threshold can be selected by adjusting the potentiometer) Operating temperature: -20℃~90℃

Reference: RBD-1836

Non-invasive AC current Sensor Split Core Current Transformer SCT-013-000 30A

2 reviews

Input Current : 0-30A Output Mode: 0-1V @ 30mA Frequency: 50HZ-150KHZ Opening Size: 13 x 13mm/ 0.5″ x 0.5″(L*W) Output Plug 3.5mm Dielectric Strength 6000V AC/1min Suitable for lighting equipment, AC motors, air compressors, monitoring, current measurement, and protection Meet UL94-V0 flame retardant properties

Reference: RBD-1671

ESP32 DHT11 WIFI Bluetooth Temperature Humidity Soil Moisture Sensor Module for Arduino

2 reviews

ESP32 Bluetooth Wi-Fi development board, support NodeMCU / Arduino DHT11 temperature and humidity sensor CP2104 communication chip USB TO TTL Micro USB port Soil probe (long) soil temperature and humidity detection module 18650 Lithium Battery Holder Powered (Battery is not included)

Reference: RBD-1677

52mm PP Liquid Water Level Sensor Horizontal Float Switch Down

Contact Rating: 10 W. Switching Voltage: 220 V. Switching Current: 0.5 A. Breakdown Voltage: 220 VDC. Carry Current: 1 A. Contact Resistance: 100 mΩ.

Reference: RBD-2071

SS49E Linear Hall Effect Sensor Module

1 review

Type: Magnetic Sensor Module Mainly Compatible with: Ardunio

Reference: RBD-1717

TDS Meter V1.0 Module Water Quality Sensor for Arduino

4 reviews

Wide voltage operation: 3.3~5.5V 0~2.3V analog signal output, compatible with 5V, 3.3V two control systems The excitation source is an AC signal, effectively preventing probe polarization Waterproof probe for long-term immersion in water

Reference: RBD-2072

Linear Magnetic Hall sensor

1 review

Operating Voltage: 3.3V-5V Features wide range voltage comparator LM393 Adjustable sensitivity Signal output indicator with the retaining bolt hole, convenient installation Output form digital switch output (0 and 1 high and low level) The output effective signal is low level When there is sound, outputs low level and the signal light

Reference: RBD-1719

Envitec OOM202 Medical Ventilator Oxygen Sensor

Envitec Honeywell OOM202 Medical Ventilator Oxygen Sensor Made in GermanyManufacture Date: 2023 December

Reference: RBD-2073

A3144 Hall Effect Sensor Module

Digital Output Hall-effect sensor. Operating voltage: typically 5V. Output Current: 25mA. It can be used to detect both the poles of a magnet.

Reference: RBD-1833

Soil NPK Sensor Agricultural

NEW TYPE AVAILABLE CLICK HERE Measurement range: 0-199 mg/KG Measurement accuracy: +-2%F.s Resolution: 1mg/KG (mg/L) Response time (T90, s): less than 10 Communication port: RS485 Power supply: 5V-24v DC 

Reference: RBD-2120

HW670 5A Current Sensor

1 review

Onboard precision microcurrent transformer. Onboard sampling resistor. The module can measure AC currents less than 5A, the corresponding analog output 5A/5mA.

Reference: RBD-1931

Soil NPK Sensor Agricultural RS485/Modbus

Easy to Measure High Precision Low measurement cost Resolution up to 1mg/kg (mg/l)

Reference: RBD-2224

Active Single Phase Voltage Transformer AC Voltage Sensor Module ZMPT101B

3 reviews

Voltage – 250V Easy PCB mounting Good consistency Widely acclaimed

Reference: RBD-1935

Water Level Sensor Gold Coating

2 reviews

Water-level sensor indicates the level of water in an overhead tank Gold coated Long life time Simple working procedure

Reference: RBD-2342

I2C SMBUS INA3221 Triple-Channel Shunt Current Power Supply Voltage Monitor Sensor Board

INA3221 3 Channel Shunt Current Voltage Monitor Sensor, high-side current and bus voltage monitor with an I2C- and SMBUS-compatible interface

Reference: RBD-2361

CJMCU-758 ACS758LCB-050B- PFF-T Hall Current Sensor Module

Working voltage: 3V-5V (MAN SV) Static output voltage: VCCi2 Working current: 135m2A (MAX) Small in size, with easy mounting capability. Monolithic Hall IC for high reliability

Reference: RBD-2148

XKC-DS1603L V1 Ultrasonic Level Sensor Non-contact Sensing

Non-contact detection Suitable for liquids of various densities and forms Easy installation for all kinds of detection occasions Compatible with containers of various materials and thicknesses Reliable performance with anti-interference ability

Reference: RBD-2653

2.8V-5.5V to ±12V DC Conversion Step Up Power Supply Module

2.8V-5.5V to ±12V DC Conversion Step Up Power Supply  Module is straightforward. There is a 2.8 to 5.5 V DC input and the module outputs +12 V and -12 V DC dual power supply voltage with a current rating of a maximum 30 mA. Off course the current output is low but sometimes it suits in many situations where one is looking forward for a small boost...

Reference: RBD-2211

Soil Moisture Hygrometer Detection Humidity Sensor Module Corrosion Resistance Probe

Soil moisture sensor module Digital and analog output Adjustable threshold Waterproof and corrosion-resistant probe

Reference: RBD-2675

Voltage Detection Sensor Module 25V

You can also use the IICLCD1602 LCD to display voltage. By 3P connector, connect this module with the expansion of board Arduino Voltage input range: DC 0-25 V Voltage detection range: DC 0.02445 V  to 25 V Voltage analog resolution : 0.00489 V

Reference: RBD-2677

0.28" LED Digital Voltmeter Ammeter with 100V/10A Measurement With 100A Shunt

Operating on a 5V DC power supply with a current consumption of less than 60mA, this 0.28-inch Digital Voltmeter Ammeter is a versatile tool for measuring voltage and current. With a testing range of 0-100V for voltage and 1-100A for current, this meter offers precise measurements with easy readability, even in dim light conditions.

Reference: RBD-2324

Brand: DFRobot

Gravity Analog ORP Sensor Meter for Arduino

In the ever-increasing need and awareness for health and safety, water has become a focus point for proper disinfection treatment as aftereffects of industrialization can become a danger for contamination of water via direct contact. Water is a critical control point of contact where proper treatment can greatly reduce these microbes, thereby reducing the...

Reference: RBD-2686

DC 0-100V 100A Voltage and Current Dual LED Display Panel Meter

Operating current: 20mA Operating voltage: DC 4.5 ~ 30V Minimum resolution(V): 0.1V Minimum resolution(A): 0.01A Display color: Red and Blue (two-color display) Measure accuracy: 1% Dual Led 0.28 ” Display for DC0-100V 100A Voltage and Current Test Digital Instrument, Digital Meter Panel Amplifier Red Blue 100A

Reference: RBD-2325

Brand: DFRobot

Gravity Analog Dissolved Oxygen Sensor / Meter Kit for Arduino

This is a dissolved oxygen sensor kit. A dissolved oxygen meter is used to measure the dissolved oxygen in water, to reflect the water quality. It is widely applied in many water quality applications, such as aquaculture, environment monitoring, natural science, etc.  There’s an old saying regarding keeping fish, “Good fish deserves good water”. Good...

Reference: RBD-2704

Voltage To Current Module 0-5V to 4-20MA Conversion Sensor Module

Convert voltage signals (0-5V) to industry-standard current signals (4-20mA) for control systems. Isolated design ensures safe operation and minimizes electrical noise interference. Wide operating voltage range (12-24V) for compatibility with various power supplies. Easy to use with clear LED indicators and simple connections.

Reference: RBD-2493

Gravity Analog Electrical Conductivity Sensor V2 K1

Brand: DFRobot Product: Gravity Lab Grade Analog Electrical Conductivity Sensor Supply Voltage: 3.0~5.0V Output Voltage: 0~3.4V Support Detection Range: 0~20ms/cm

Reference: RBD-2735

INA219 DC Current Measurement Module

Measures high-side current and voltage up to 3.2A @ 26VDC.

Reference: RBD-2748

Reset / Enable Controller - KA75330 3.3V Voltage Detector

A voltage detector is handy for projects where you want to make sure your microcontroller doesn't run at a low voltage. For example, say you have a Feather Huzzah running on a lipoly battery every few minutes. Eventually, the battery runs down and goes below 3.3V, so the voltage to the ESP8266 core is too low, and could cause a lockup or corrupted data....