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Qty: 1 $1073.80
Qty: 1 $1181.19

In-stock orders will ship in 3 business days or less after receipt of order.

45 Available.

75 Available on 2024-09-21

Other Quantities - Contact Us.

Sold Per: EA

Gross Weight2: 8.80 lb

2The weight listed is gross product weight including standard packaging, actual shipment weight may vary.

Stock Location: CHINO, CA, 3661 WALNUT AVENUE

Country Of Origin: USA



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  • Tests Operator’s Path-To-Ground; Wrist Strap Limits 750 kilohms to 10 megohms, Footwear Limits 750 kilohms to 35 megohms1
    Determines that operator’s personnel grounding devices (wrist straps2, foot grounders, ESD shoes, smocks3) are functioning correctly.
  • Compatible with Single-Wire and Dual-Wire Wrist Straps
    See SCS Single-Wire Wrist Straps and Dual-Wire Wrist Straps
  • Simultaneous Testing of Wrist Strap and Footwear in Less Than 3 Seconds
    Reduces time spent testing personal grounding devices used in ESD Control Plans
  • Solid-State Test Switch with No Moving Parts
    Maintains accuracy of tests and extends the lifetime of the tester
  • Split Foot Plate for Testing Foot Grounders (or ESD Shoes)
    Tests both foot grounders independently at the same time
  • 30 Volt Test Signal
    Provides accurate tests that are not humidity dependent
  • Relay for Use with Automatic Doors or Other Locking Systems
    Controls access to ESD Protected Areas
  • Optional Stand
    Use the SCS 770759 stand as an alternate installation method for the Dual Combination Tester
  • Calibration Verification
    Use the SCS 770769 Limit Comparator to check the test limits of the Dual Combination Tester without removing it from the workplace
  • NIST Calibrated – Original Calibration Certificate can be Downloaded Here
    Calibrated with accepted procedures and standards traceable to the National Institute of Standards and Technology. For more information on the calibration of SCS products, see Calibration.
  • 100-240VAC Power Adapter with Interchangeable Plugs
    Works with standard electrical systems in North America, United Kingdom, Japan, Asia and Europe
  • Made in the United States of America
    This item is made and stocked in Chino, CA



  1. Default test limits listed. Additional test settings are noted in the user guide.
  2. The Dual Combination Tester can verify both single-wire and dual-wire wrist straps.
  3. The Dual Combination Tester will also test a Groundable Static Control Garment System. The Groundable Static Control Garment System must have an RTG of < 3.5 x 107ohms to meet the required limit of ANSI/ESD S20.20-2007 tested per ANSI/ESD STM2.1 and ESD TR53.
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  • TB-9094 - Dual Combination Tester - Installation, Operation and Maintenance

SCS Dual Combination Tester & 770769 Limit Comparator - Calibration Tutorial

Are your Product Qualification Methods compliant with ANSI/ESD S20.20? Find out here.

The 770758 - Dual Combination Tester is Essential for your High Reliability ESD Program.

Download Calibration Certificate

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Calibration Price

$100 - 1 Week - See full price list here

Calibration Request Form

Request calibration or repair here