ESD and Antistatic Products

Wrist Strap Tester

The Wrist Strap Tester checks the resistance path through a worn ESD wrist strap and cord, then displays a high, pass or low result for routine personnel grounding verification.

Three-state indication distinguishes high, acceptable and low resistance conditions.
Large stainless touch plate supports a direct operator test routine.
Compact sloped housing keeps the connection and result lamps easy to see.

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Product Introduction

This compact tester combines a stainless contact plate, a dedicated wrist-cord jack and three vertically arranged result lamps on a sloped front panel. The molded charcoal enclosure can sit on a counter or be adapted for a fixed entry-point position. During a test, the operator connects the worn strap cord and touches the metal plate to complete the measurement path through the skin, band and cord. The separated high, pass and low indications help supervisors identify an open/high-resistance condition or an unexpectedly low-resistance path without interpreting a numerical display.

Key Features

High, pass and low lamps provide an immediate qualitative result.

Brushed-stainless touch plate offers a durable operator contact surface.

Dedicated wrist-strap jack prevents confusion with footwear interfaces.

Sloped front panel improves visibility at counter height.

Compact molded enclosure supports portable or fixed-point use.

Side power connection keeps supply routing away from the touch surface.

Customer Product Concerns

A wrist strap checker must be simple enough for repeated daily use while distinguishing both high-resistance failures and unsafe low-resistance paths.

An operator enters the protected area with an open cord or poor skin contact.The high-result channel identifies a resistance path above the selected acceptance window.

A missing or bypassed current-limiting resistor is overlooked.The low-result channel identifies an unexpectedly low measured path for follow-up inspection.

Personnel misread a complicated numerical display.Three separated lamps communicate high, pass and low outcomes directly.

Inconsistent hand pressure makes testing awkward.The large metal plate provides a generous, stable contact area for the fingertip or palm.

The tester is difficult to see or reach at an entry station.A sloped face and compact footprint suit counter-level or wall-adjacent installation.

Typical Applications

ESD-protected area entry checkpoints.Electronics production shift-start verification.PCB assembly and repair departments.Static-sensitive laboratories and inspection rooms.Supervisor spot checks of wrist strap assemblies.

Technical Parameters

The representative construction below describes a single-circuit touch tester. Pass limits, cord connector, power arrangement and mounting method should be selected to match the established ESD compliance-verification plan.

Core Material	Flame-retardant ABS enclosure with electronic resistance-comparison circuit and metal contacts
Panel Thickness	2.0–4.0 mm molded housing and front-panel thickness
Effective Width	95–160 mm enclosure width
Maximum Length	Up to 220 mm overall enclosure depth
Steel Facing Thickness	1.0–1.5 mm brushed-stainless touch-plate thickness
Core Density	1030–1080 kg/m³ ABS resin density
Thermal Conductivity	0.17–0.22 W/(m·K)
Surface Finish	Textured charcoal housing with black sloped panel, silver contact plate and red/green indicator lenses
Joint Type	Single wrist-cord jack and stainless touch plate connected to a three-state resistance comparator
Customization	Available based on the intended application and operating environment.

Available Options

Fixed or selectable upper resistance limit.Battery, regulated DC or regional adapter input.Banana, snap or application-specific wrist-cord jack.Visual indication with optional audible signal.Bench-top or wall-mount arrangement.Test-result relay or access-control output where required.

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