Martindale PD440SRDX 440V Advanced Proving Unit
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Description
Advanced 440V proving unit designed for professional electricians requiring high-level safety verification and calibration support. SEO keywords: proving unit, electrical safety tools, voltage tester accessory.
Care
Store in a clean, dry environment.
Keep away from direct sunlight, moisture, and extreme temperatures.
Inspect regularly for any signs of wear or damage.
Clean using a soft cloth or mild detergent when necessary.
Shipping & Returns
- Free shipping on orders over 75,000
- Standard delivery within 2–5 business days
- Easy 1-2-day returns
- Items must be returned in their original condition for a full refund
Standard delivery within 2–5 business days
Return items in original condition for a full refund

