PREMIER 1/4” HEX DRIVE DIGITAL TORQUE
SCREWDRIVER 0.05-5Nm
MODEL NO: STS103
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these
instructions, and properly maintained, give you years of trouble free performance.
1. SAFETY
9 Ensure all workshop safety rules, regulations and conditions are complied with when using this tool.
9 Maintain the screwdriver in good condition.
8 The screwdriver is a precision tool, DO NOT drop it or abuse it.
9 Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
9 Keep children and unauthorised persons away from the working area.
WARNING! DO NOT use the screwdriver if damaged or thought to be faulty.
9 After use, clean and store in a safe, dry, childproof location.
2. INTRODUCTION
Suitable for automotive, workshop and factory use. LCD read-out with LED, audible alarm and vibration indicating achieved and target
torque levels. Preset track, peak or desired torque levels using simple push-button menu. Clockwise and anticlockwise operation. Selecta-
ble read-out in Nm or lb.ft. Accurate to ±1% of stated capacity. Textured, contoured handle for added grip and comfort. Supplied with test
certicate.
3. SPECIFICATION
4. PREPARATION
4.1. INSERTING THE BATTERIES
4.1.1. Remove batteries from outer plastic packaging.
4.1.2. Unscrew the 2 screws at location ‘B’. See (g.2). Carefully remove end cap from screwdriver handle.
4.1.3. Insert both batteries ensuring the polarity of the battery is the correct orientation in the battery compartment. See (g.2).
4.1.4. Replace cap and re-tighten both screws at location ‘B’.
5. OPERATION
5.1. TURNING THE TOOL ON / OFF (SEE FIGS 1 & 2)
5.1.1. Press button to turn on. The buzzer sounds and on
the display shows all the readouts simultaneously. After 3
seconds the display shows “ 0000 ” on the screen.
5.1.2. Under torque measuring mode, press button again to
turn the electronic system off.
5.1.3. The screwdriver will turn off automatically without any
buttons being pressed, or inactivity over 2 minutes.
5.2. CHECK BATTERY CHARGE LEVEL INDICATOR:
If the battery is empty, the indicator on the display will
show , an entirely white battery symbol. The batteries
must be replaced in order to guarantee full function and
accuracy. See g.2.
5.3. ACTIVATING THE TRACK MODE:
5.3.1. After turning on the display, the default is in “Peak” mode,
the maximum value reached will be saved additionally and
the value is shown on the display for approx. 2 seconds.
After that, this value ashes and then you can continue to
the next application or press button to zero.
STS103 Issue 3 (H 2,3,4) 04/04/24
Original Language Version
© Jack Sealey Limited
Refer to
instructions
Model No: STS103
Batteries: 2 x AAA (supplied)
Drive: 1/4”Hex
Length: 155mm
Nett Weight: 0.14Kg
Range: 0.05-5Nm
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE
THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
g.1
5.3.2. During the “Track” mode, the real-time torque reached
during operation will be displayed.
5.3.3. To select either “Track” or “Peak” mode, rst press: and,
within 3 seconds: .
5.4. UNIT SELECTION:
With the unit switched on, press and hold for 5 seconds
to switch between Nm and lb/ft.
5.5. PROGRAMMING THE PRE-SET TORQUE VALUE.
5.5.1. Press and hold the button for 3 seconds to enter the
setting mode. Release the button when “Set” is shown on the
screen.
5.5.2. Press button to increase the pre-set torque. Note: In the
setting mode, the display will NOT show peak on the left side
of the screen.
5.5.3. To increase the value, keep the button pressed to increase
the rate of increase.
5.5.4. To decrease the value, press to zero the display, then
press to increase to the required value.
5.5.5. Once the target torque has been selected, the screwdriver will
memorise that torque after 3 seconds.
5.5.6. If a target torque of more than 100% maximum torque
value(5Nm)is selected, the display will zero and no setting will
be entered.
5.6. USING THE TORQUE SCREWDRIVER
5.6.1. After applied force, the maximum value reached will be saved
additionally and the value is shown on the display for approx.
2 seconds. If the target torque is reached,the buzzer will
sound, the LED indicator will light and the handle will vibrate
for approx. 2 seconds.
5.6.2. This value will continue ashing allowing the reading to be
used for the next application. Alternatively, the button may
be pressed to zero the reading before the next application.
5.6.3. When force is applied in an anticlockwise direction, the display will show a minus (-) sign on the left side of screen. The following
reading will be positive when clockwise torque is applied.
5.6.4. The meter will switch off automatically after approx. 2 minutes of inactivity.
WARNING: DO NOT use the screwdriver when the battery level is low. An inaccurate reading is possible in this condition.
6. MAINTENANCE
8 DO NOT apply force when the power is turned off.
8 DO NOT expose the unit to strong magnetic elds, corrosive agents, excessive heat or humidity.
9 Clean only with a damp cloth, do not use proprietary cleaners or solvents to clean this product.
9 If it is anticipated that the screwdriver will be out of use for a time, the batteries should be removed (g.2).
9 When not in use, store in a cool, dry location away from direct sunlight and out of the reach of children.
STS103 Issue 3 (H 2,3,4) 04/04/24
Original Language Version
© Jack Sealey Limited
Loosen the 2 screws at location ‘‘B’’
then remove the cap to change the
batteries.
:Press to enter SETTING mode and press to increase the value to
programme pre-set torque.
FUNCTION KEYS
PREPARATION:
Battery Installation & Removal
KEYPAD
:Press to turn the screwdriver on/Press and hold the button for 5 seconds
to alter the display units/ in measurement mode, press to zero.
g.2
BATTERY REMOVAL: SEE FIG.2.
Under the Waste Batteries and Accumulators Regulations 2009, Jack Sealey Ltd are required to inform potential purchasers of products
containing batteries (as defined within these regulations), that they are registered with Valpak’s registered compliance scheme. Jack
Sealey Ltd Batteries Producer Registration Number (BPRN) is BPRN00705.
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice.
Important: No Liability is accepted for incorrect use of this product.
Warranty: This product comes with a lifetime guarantee against manufacturing defects.
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 sales@sealey.co.uk www.sealey.co.uk
WEEE REGULATIONS
Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic
Equipment (WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact
your local solid waste authority for recycling information.
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be
sorted, taken to a recycling centre and disposed of in a manner which is compatible with the environment. When
the product becomes completely unserviceable and requires disposal, drain any uids (if applicable) into approved
containers and dispose of the product and uids according to local regulations.
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