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Product Details

Portable, pocket-sized, battery-powered proving unit.
• Able to source stable AC and DC voltages for both LoZ and HiZ instruments.
• Reduces the risk of shock and arc flash by validating the functionality of test tools using a single LED
• Compatible with high and low impedance multi meters, clamp meters and two pole testers


A simple-to-use solution for complying with TBT verification. Voltage is sourced through recessed contacts that are activated when tested probes are inserted to avoid accidental contact. Long battery life of 5,000 tests per set of 4 x AA batteries. Includes TPAK magnetic hanging strip.

Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free


Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

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If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 8pm Mon-Sat (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
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