Skip to main content
Home / Electronic Components / Maker DIY / F509 AC Smart Digital Display Ammeter Upper Limit Overload Alarm Detection Relay Controller Instrument

Attributes

Brand -
Category Root / Electronic Components / Maker DIY
Origin -
Material Selected Electronic Components / Maker DIY grade material with balanced durability.
Build Quality Stable structure designed for regular daily usage.
Finish Clean surface treatment with consistent color tone.
Weight Moderate weight profile for easier handling and storage.
Compatibility Works well with most common Electronic Components / Maker DIY setups.
Packaging Comes with basic protective packaging for shipping.
Care Guide Wipe with a dry cloth and keep away from direct heat.
Use Case Suitable for everyday Electronic Components / Maker DIY requirements.
Design Focus Practical details to support the core function of F509 AC Smart Digital Display Ammeter Upper Limit Overload Alarm Detection Relay Controller Instrument.
Overall Value Balanced option for budget and performance.

6 reviews

A

Anonymous

Mar 28, 2026

Rating: 5/5

Exactly what I expected

The F509 AC Smart Digital Display Ammeter Upper Limit Overload Alarm Detection Relay Controller Instrument arrived in good condition and matches the listing details.

A

Anonymous

Mar 24, 2026

Rating: 4/5

Works as described

No major issues. The finish and fit are both acceptable for this range.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Solid everyday option

Simple, reliable, and easy to integrate with my existing setup.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Will buy again

Helpful product page and smooth experience overall.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Reliable and practical

After a few days of use, it feels dependable and consistent for routine tasks.

A

Anonymous

Mar 01, 2026

Rating: 4/5

Good quality for the price

I use it regularly and the performance has been stable so far.

5 FAQ

Q: Can this be used with standard Electronic Components / Maker DIY accessories?

A: It is generally compatible with common accessory formats in this category.

Q: How should I maintain this item?

A: Keep it dry, store it properly, and clean it with a soft cloth when needed.

Q: Is the item easy to install or start using?

A: Most customers can get started quickly with basic setup steps.

Q: Is F509 AC Smart Digital Display Ammeter Upper Limit Overload Alarm Detection Relay Controller Instrument suitable for daily use?

A: Yes, it is designed to support regular day-to-day usage.

Q: What is the main advantage of this product?

A: The key benefit is balanced performance and practical value for routine use.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Fengkong AC Current Transmitter, Power & Voltage DC Current Sensor, Power Frequency Isolation Detection Module

Fengkong AC Current Transmitter, Power & Voltage DC Current Sensor, Power Frequency Isolation Detection Module

$261.00

Power Sensor DC Current Detection Module 0-5A 2Adc/4-20mA 10V Voltage Transmitter SDA-T2

Power Sensor DC Current Detection Module 0-5A 2Adc/4-20mA 10V Voltage Transmitter SDA-T2

$290.00

Through-Hole AC Current Transmitter Sensor - DC Voltage Detection Module with Isolation (Model SAA-T5)

Through-Hole AC Current Transmitter Sensor - DC Voltage Detection Module with Isolation (Model SAA-T5)

$305.00

Ammonia Concentration Sensor Transmitter with 4-20mA Analog Output for Livestock Farms

Ammonia Concentration Sensor Transmitter with 4-20mA Analog Output for Livestock Farms

$905.00

Power Transmitter AC Current/Voltage Sensor, Three-Phase Power Meter, Switchgear Temperature & Humidity Controller

Power Transmitter AC Current/Voltage Sensor, Three-Phase Power Meter, Switchgear Temperature & Humidity Controller

$565.40

Single-Phase Power Transmitter HAP-D1 Hall Sensor for Power, Current, Voltage, Frequency, and Temperature Detection (100V 5A)

Single-Phase Power Transmitter HAP-D1 Hall Sensor for Power, Current, Voltage, Frequency, and Temperature Detection (100V 5A)

$701.00

Automotive Sensor Signal Simulator & Tester - Multimeter for Voltage and Current Simulation

Automotive Sensor Signal Simulator & Tester - Multimeter for Voltage and Current Simulation

$399.00

Shanshui Power S80 Gen 3 New Oscilloscope Multimeter, High-Precision Current and Voltage Detection Oscilloscope Sensor

Shanshui Power S80 Gen 3 New Oscilloscope Multimeter, High-Precision Current and Voltage Detection Oscilloscope Sensor

$860.00

Shanshui Power S80h Gen 3 Oscilloscope Multimeter - High-Precision Current & Voltage Detection

Shanshui Power S80h Gen 3 Oscilloscope Multimeter - High-Precision Current & Voltage Detection

$1,295.00

AC/DC Current Transmitter 4-20mA Power 485 Hall Sensor Three-Phase Voltage Detection Acquisition Module

AC/DC Current Transmitter 4-20mA Power 485 Hall Sensor Three-Phase Voltage Detection Acquisition Module

$74.80

Shanshui Power S80 3rd Gen New Oscilloscope Multimeter High-Precision Current Voltage Detection Oscilloscope Sensor

Shanshui Power S80 3rd Gen New Oscilloscope Multimeter High-Precision Current Voltage Detection Oscilloscope Sensor

$485.00

SNDWAY Laser Rangefinder Module High-Precision Industrial Sensor Programming Networking Sw-LDS50A

SNDWAY Laser Rangefinder Module High-Precision Industrial Sensor Programming Networking Sw-LDS50A

$1,562.68

MyAntenna Laser Distance Sensor Module High-Precision Industrial TTL/RS485/RS232 Analog Output

MyAntenna Laser Distance Sensor Module High-Precision Industrial TTL/RS485/RS232 Analog Output

$444.00

High-Precision Laser Distance Sensor Module with 20Hz Displacement Sensing, Programmable Networking, Digital and Analog Outputs

High-Precision Laser Distance Sensor Module with 20Hz Displacement Sensing, Programmable Networking, Digital and Analog Outputs

$989.80

Laser Rangefinder Module Sensor with Dual Optical Path, Millimeter-Level Precision, Custom UART Laser Rangefinder

Laser Rangefinder Module Sensor with Dual Optical Path, Millimeter-Level Precision, Custom UART Laser Rangefinder

$377.80

5km Range 570nm Laser Rangefinder Module, 2km-4km Measurement Capability for Outdoor and Drone Applications

5km Range 570nm Laser Rangefinder Module, 2km-4km Measurement Capability for Outdoor and Drone Applications

$172,800.00

Ultra-Thin Laser Rangefinder Module, 905nm Long-Range Distance Sensor MINI-12

Ultra-Thin Laser Rangefinder Module, 905nm Long-Range Distance Sensor MINI-12

$628.60

YwRobot Sensor IO Expansion Board Compatible with Arduino Uno R4

YwRobot Sensor IO Expansion Board Compatible with Arduino Uno R4

$20.00

STEVAL-HARVEST1 Energy Harvesting Expansion Board NUCLEO-WL55JC1 STTS22H Sensor

STEVAL-HARVEST1 Energy Harvesting Expansion Board NUCLEO-WL55JC1 STTS22H Sensor

$721.00

Makeblock mBot2 Dedicated Servo Motor MS-1.5A - Metal 9g Micro Servo, mBot2 Expansion Board, MAKEX Competition Parts, 4-Channel Color & Ultrasonic Sensor

Makeblock mBot2 Dedicated Servo Motor MS-1.5A - Metal 9g Micro Servo, mBot2 Expansion Board, MAKEX Competition Parts, 4-Channel Color & Ultrasonic Sensor

$71.10

Kittenblock micro:bit Electronic Expansion Board Sensor Kit for MakeCode Programming

Kittenblock micro:bit Electronic Expansion Board Sensor Kit for MakeCode Programming

$914.10

High-Precision RS485 Laser Displacement and Distance Sensor Module with Radar Material Shift and Modbus Protocol Interface

High-Precision RS485 Laser Displacement and Distance Sensor Module with Radar Material Shift and Modbus Protocol Interface

$60.80

[Youxin Electronics] Laser Distance Sensor Module, Infrared Ranging/Measurement Range 0.05-40m

[Youxin Electronics] Laser Distance Sensor Module, Infrared Ranging/Measurement Range 0.05-40m

$413.00

TRIMBLE GEO7X Handheld RTK Precision GPS Receiver with GEO7 Laser Rangefinder Module

TRIMBLE GEO7X Handheld RTK Precision GPS Receiver with GEO7 Laser Rangefinder Module

$21,850.00

TOF050C 200C 400C Laser Distance Sensor Module ToF Time-of-Flight IIC Output

TOF050C 200C 400C Laser Distance Sensor Module ToF Time-of-Flight IIC Output

$11.80

Disdrometer for Rain, Snow, and Hail Observation; Weather Phenomenon Instrument and Rainfall Monitoring Station with Meteorological Sensors

Disdrometer for Rain, Snow, and Hail Observation; Weather Phenomenon Instrument and Rainfall Monitoring Station with Meteorological Sensors

$25,999.00

ATK-VL53L0X Laser Distance Module - ToF Time-of-Flight Ranging Sensor

ATK-VL53L0X Laser Distance Module - ToF Time-of-Flight Ranging Sensor

$53.60

Weikong MT-06 Anti-Strong Light 6-Meter Laser Distance Module, UAV Altitude Hold, Obstacle Avoidance, and Landing Assist Sensor

Weikong MT-06 Anti-Strong Light 6-Meter Laser Distance Module, UAV Altitude Hold, Obstacle Avoidance, and Landing Assist Sensor

$74.00

Laser Distance Measurement Module Sensor for Industrial Security Monitoring and Early Warning, 100Hz, 10m Range, TTL Serial and RS485 Output

Laser Distance Measurement Module Sensor for Industrial Security Monitoring and Early Warning, 100Hz, 10m Range, TTL Serial and RS485 Output

$232.20

High-Speed 100M Laser Distance Sensor Module - TTL Level Output with RS232/485 Serial Interface

High-Speed 100M Laser Distance Sensor Module - TTL Level Output with RS232/485 Serial Interface

$291.20

Free Shipping

Enjoy free shipping on all orders

Product Replace

Easy Product Replacement Available!

Emi Available

No cost EMI available on all major credit cards

24/7 Support

Dedicated 24/7 support via chat and email