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SKU 66804 

For technical questions, please call 1-800-444-3353. 

Page 4

SpeciFicationS

Voltage

Ranges: 3-48VDC

Accessories

2 probes, 2 clamps, 

adaptor

note:

 This tool should only be used with 

DC voltage systems less than or 

equal to 48V.

unpacking

When unpacking, check to make 

sure that the item is intact and undam-

aged.  If any parts are missing or broken, 

please call Harbor Freight Tools at the 

number shown on the cover of this manual 

as soon as possible.

operating inStructionS

  read the entire important 

SaFetY inFormation 

section at the beginning of this 

manual including all text under 

subheadings therein before set 

up or use of this product.

tool Set up

 

to preVent 

SeriouS injurY 

From acciDental 

operation: 

electrical Shock can 

cauSe Death or injurY. 

aVoiD touching eXpoSeD 

conDuctorS oF 

electricitY.

Long Needle Probe

Short Needle 

Probe

Negative Charge Clip

Alligator Clamp 

with Rubber 

Sleeve

Alligator Clamp with 

Plastic Frame

Adaptor

Handle

Cord

Figure 1

Choose which attachment is best suited 

for the task and attach it to the brass tube 

on the end of the Handle. Possible con-

figurations are:

Thread either one of the Needle 

• 

Probes into the socket of the 

handle. Remove the protective cap 

from the pointed end of the Probe.
Thread the Long Needle Probe into 

• 

the socket of the handle. Remove 

the protective cap from the pointed 

end of the Probe and insert the 

Probe into the socket of the Alliga-

tor Clamp with the Rubber Sleeve. 

Push it in until it is secure.
Attach the Adaptor to the socket of 

• 

the handle by pushing it all the way 

in. Attach the Alligator Clamp with 

the Plastic Frame to the Adaptor. 

general operating instruction

Do not test voltage on DC circuits 

higher than 48 volts.
Attach the Negative Charge Clip to a 

1. 

good ground.

Summary of Contents for 66804

Page 1: ...nual Copyright 2009 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manual may not be drawn proportionally Due to continuing improvements actual product may differ slightly from the product described herein Tools required for ...

Page 2: ...tes a hazardous situation which if not avoided could result in minor or moderate injury NOTICE is used to address practices not related to personal injury CAUTION without the safety alert symbol is used to address practices not related to personal injury General Safety Rules WARNING Read all safety warnings and instructions Failure to follow the warnings and instructions may result in electric sho...

Page 3: ... repro ductive harm California Health Safety code 25249 5 et seq Store idle equipment When not in 13 use Test Light Voltmeter must be stored in a dry location Lock up the tool and keep out of reach of children Dress properly Protective electrically 14 nonconductive clothes and nonskid footwear are recommended when working Remove any metal items such as jewelry before working with electricity Wear ...

Page 4: ...OSED CONDUCTORS OF ELECTRICITY Long Needle Probe Short Needle Probe Negative Charge Clip Alligator Clamp with Rubber Sleeve Alligator Clamp with Plastic Frame Adaptor Handle Cord Figure 1 Choose which attachment is best suited for the task and attach it to the brass tube on the end of the Handle Possible con figurations are Thread either one of the Needle Probes into the socket of the handle Remov...

Page 5: ...3 on the Handle If the voltage is lower than 3 volts the LCD will light up but no reading will display Procedures not specifically explained in this manual must be performed only by a qualified technician Cleaning Maintenance and Lubrication BEFORE EACH USE 1 inspect the general condition of the Voltmeter Check for cracked or broken parts damaged electrical wiring and any other condition that may ...

Page 6: ...cidental or con sequential damages so the above limitation of exclusion may not apply to you This warranty is expressly in lieu of all other warranties express or implied including the warranties of merchantability and fitness To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint ...

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