UNI-T UT18D Voltage Continuity Tester Waterproof IP65 Built-in Lighting RCD Test Phase Rotation Test Voltage Indication On-off Test


  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




UT18 Series voltage and continuity testers are designed for testing AC DC voltage, 3-Phase voltage and phase array, Continuity,and more.This series is categorized as CAT IV 600V and meets IP65 standard.

Application fields for UT18 includes smelting, electronics ,manufacturing, and electrical. These voltage testers are perfect tools for electricians ,to quickly measure voltage levels in andy harsh environment.

This series should NOT be used in 110V electrical systems

Specifications Range Best Accuracy
Model    UT18A UT18B UT18C UT18D
LED AC/DC Voltage Indication (V) 12V 8V±2V 8V±2V 8V±2V 8V±2V
24V 18V±2V 18V±2V 18V±2V 18V±2V
50V 38V±4V 38V±4V 38V±4V 38V±4V
120V 92V±6V 92V±6V 92V±6V 92V±6V
230V 174V±8V 174V±8V 174V±8V 174V±8V
400V 320V±10V 320V±10V 320V±10V 320V±10V
690V 550V±15V 550V±15V 550V±15V 550V±15V
Phase Rotation Test Operating Voltage: 100V~690V √  √  √  √ 
Frequency: 50Hz~ 60Hz
Single Lead (L2) Voltage Detection Operating Voltage: 100V~690V √  √  √  √ 
Frequency: 50Hz~ 400Hz
Continuity Test Resistance: 0~100kΩ √  √  √  √ 
Beeper and LED light Indicator
RCD Test Operating Voltage: 230V (50Hz~400Hz)    √  √  √ 
Polarity Detection Positive & Negative √  √  √  √ 
self-inspection All LED or LCD indicator √  √  √  √ 
No power Test Operating Voltage: 50VAC/120VDC~690VDC/AC √  √  √    
IP65    √  √  √  √ 
Auto Range All Range √  √  √  √ 
Work Light All Range √  √  √  √ 
Low Battery Indication Voltage Range: 2.2V~2.4V √  √  √  √ 
Exceed Voltage Voltage Range: 713V~788V √  √  √  √ 
Auto standby Standby Current <10uA √  √  √  √ 
Silent mode All Range √  √  √  √ 
LCD Backlight All Range          √ 
LCD Display (Voltage+Frequency) 6V~690V (40Hz~400Hz)       ±(1.5%+5)  ±(1.5%+5)
General Characteristics 
Power 1.5V Batteries (R03) × 2 
LCD Size UT18C-31×20mm; UT18D-73.5×35.5mm
Product Color Red and Grey
Product Net Weight UT18A/B=260g、UT18C/D=280g
Product Size 272mm×85mm×31mm 
Standard Individual Packing Blister, English Manual

Package included:

1 x UT18D Voltage Continuity Tester (Battery not included)

1 x Blister

1 x English Manual

Details picture:

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