FNIRSI 0-10V 4-20mA Adjustable PWM Signal Generator 3000mAh Large Lithium Battery Current Voltage Simulator Sources Calibrator Chargable


  Availability: In Stock
  Shipping: Free Airmail 
  Ship From: China Warehouse
  Estimated Delivery: 
  •   Shipping Methods

    Handling Time

    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

    Shipping Methods

    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

    Delivery Time

    Airmail and Airmail Registered Area Estimated Delivery Time
    United States, Canada 7-25 business days
    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
    Italy, Brazil, Russia, South Africa 10-45 business days
    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022


    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.


    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.


    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.


    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888



Active current output
Range: 0-24mA Resolution: 0.01 mA Maximum load: 750Ω Accuracy:±(0.1% + 0.005)
Passive current output
Range: 0-24 mA Resolution: 0.01 mA External power supply up to 30V Accuracy: ± (0.1% + 0.005)
Voltage output
Range: 0-12 V Resolution: 0.01v Maximum current 30mA  Accuracy: ± (0.1% + 0.005)
24V voltage output
Drive current: 24mA Resolution: 0.01 mA / Accuracy: ±(0.1% + 0.005)
Current input measurement
Range: 0-24 mA Resolution: 0.01 mA Input impedance: 100Ω Accuracy: ±(0.1% + 0.05)
Voltage input measurement
Range: 0-30 V Resolution: 0.01 V Input impedance: 2MΩ Accuracy: ± (0.1% + 0.05)
PWM output (frequency)
Range: 0-20K, 45K, 90K, 180K Resolution: 1Hz / Accuracy: ±2%
PWM output (duty cycle)
Range: 0-100 Resolution: 1% / Accuracy: ±2%
Working environment


FNIRSI SG-003A signal generator is mainly used for the debugging of industrial field PLC, process instrumentation, electric valve, etc. The friendly operation interface is easy to use
FNIRSI SG-003A signal generator is small in size, light in weight, but has long standby time, high precision, and is easy to carry when going out to work. Adjustable button backlight and high-definition TFT color LCD screen make user operation more convenient at night and during the day


1. With the conventional signal input and output functions
2. Voltage and current have automatic output function, and you can choose three modes of single rise, single fall and cycle
3. With input to output conversion, voltage conversion active current mode, passive mode and current conversion voltage mode
4. The output has a self-defining function, and the upper and lower limits of the output can be set arbitrarily
6. Voltage input diagram, current input diagram, frame rate is 10 frames
7. The frequency and duty cycle of PWM output can be set separately
8. Real-time curve: Real-time observation of voltage and current changes
9. It is powered by a large-capacity lithium battery and has a Type-c interface (5V) for charging. Lithium battery capacity is 3000mHA, long working time
10. High-definition TFT color LCD screen, the reading is more eye-catching. The resolution is 240 x 320. Low power consumption, maximum power consumption: 0.32W

11. Internal reverse and overcurrent protection. Protection voltage: 30V

12. Power supply: A 3.7V 3000mAh lithium battery. Standby time is 26 hours. According to the usage, the use time will be different (continuous output 20mA may be 8-10 hours)

13. Size: 92 x 72 x 30mm

Package Included:

1 x FNIRSI SG-003A Signal Generator (Other products are not included)
1 x Black Storage Bag
4 x Test Clip
1 x FNIRSI SG-003A Silicone Protective Cover
1 x USB Charging Cable
1 x EU Charger

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