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Ohm-Stat CM-1702 - Guardian Pro Constant Monitor

Ohm-Stat CM-1702 - Guardian Pro Constant Monitor

$130.30
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SKU:
CM-1702
Availability:
7 - 10 Business Days
Shipping:
Calculated at Checkout
Quantity Option (Each):
1 Monitor
Ohm-Stat CM-1702 Guardian PRO™ Constant Monitor — Dual-Operator Continuous Wrist Strap Ground Monitor (Single-Wire), LED + Audible Alarm, NIST Calibration Included
Dual Operator (2 Channels) Continuous Monitoring Single-Wire Wrist Straps LED + Buzzer Alarm NIST Calibration Included 110VAC (9VDC Adapter)
Overview

The Ohm-Stat CM-1702 Guardian PRO™ is a dual-channel constant monitor built to continuously verify the operator-to-ground path for two people wearing single-wire (one-conductor) wrist straps. In ESD-controlled workstations, intermittent strap/cord failures can occur between entry tests; constant monitoring is designed to make loss-of-ground conditions immediately visible and actionable.

SOSCleanroom supports ESD Protected Areas (EPAs) with best-in-class static control brands and practical, audit-friendly workstation solutions—so you can protect sensitive electronics, reduce rework, and improve process confidence.

Why constant monitoring matters
  • Detects failures as they happen: LED status and an audible alarm notify you if an operator’s ground path is compromised.
  • Two-operator efficiency: One device supports two people at one workstation or shared bench tasks.
  • Works with standard single-wire wrist straps: Designed for one-conductor wrist strap systems commonly used in electronics manufacturing and lab environments.
  • Supports consistent EPA execution: Helps reinforce correct behavior at the point of work—where ESD events actually happen.
Typical applications
  • Electronics assembly, test, and rework benches (ESD Protected Areas)
  • Cleanroom or controlled environments where electronics are present (low humidity + synthetic materials can increase static risk)
  • Device build/repair, calibration labs, and QC/inspection stations
  • Any dual-operator workstation where continuous grounding verification is preferred over periodic-only checks
Key specifications (published)
Monitoring channels 2 operators / 2 wrist straps (dual channel)
Wrist strap type Single-wire (one-conductor) wrist strap systems
Alarm type LED status + audible buzzer (visual pass/fail)
Power 110VAC supply via 9VDC adapter
Calibration NIST calibration included (certificate validity published by distributors may vary)
Connection interface Banana plug compatibility (as listed by distributors)
Impedance setpoint Preset impedance is adjustable (per published documentation)
Standards listing CE marked; listed as meeting EOS/ESD S20.20-2007 specifications
Each unit contains 1 monitor

Note: Always validate alarm thresholds and monitor behavior under your ESD Control Program Plan and workstation configuration (strap, cord, docking, and ground path).

Practical setup tips (workstation)
  • Verify the building ground first: Use an outlet/ground checker before you rely on the workstation ground path.
  • Use firm-fitting connections: Banana plug jacks and designated ground points reduce “mystery resistance” and intermittent contact.
  • Train “dock + disconnect” behavior: When operators leave the bench, ensure wrist strap cords are handled consistently (per your SOP).
  • Document the configuration: Strap model, cord type, ground point, and monitor settings should be controlled under change management for repeatability.
If you have any questions please email us at Sales@SOSsupply.com or give us a call at (214)340-8574. OR check out the AI ChatBot powered by SOSCleanroom data libraries - give it a try! THIS IS NEW FOR 2026! © 2026 SOSCleanroom. All rights reserved.
The Technical Vault By SOSCleanroom
ESD Education Electronics + Cleanrooms Workstation Grounding Continuous Monitoring
Why ESD control is a process discipline (not just a product)

Electrostatic discharge (ESD) is a leading hidden cause of yield loss in electronics: some events cause immediate failure, while others create latent damage that passes inspection but fails later in the field. Cleanrooms can intensify static risk when humidity is managed for product or microbial reasons, and when synthetic garments, plastics, and constant motion are part of normal operations. The result: your grounding strategy must work reliably at the bench—every hour of every shift.

What ESD programs expect at the operator interface

In an ESD Protected Area (EPA), the most important control is personnel grounding. Industry guidance emphasizes that when handling ESD-sensitive items, personnel should be bonded to the grounding / equipotential bonding system—typically via a wrist strap system at seated workstations.

  • Ground point quality matters: Your “green wire” equipment ground must be verified; do not assume an outlet is correctly wired.
  • Avoid daisy-chaining grounds: Each workstation should be individually grounded to prevent unpredictable resistance-to-ground.
  • Use reliable connectors: Firm-fitting connections (often banana jacks at designated points) reduce intermittent contact.
Why constant monitors are used (and when they’re worth it)

A daily wrist strap test (at the doorway) confirms performance at a single point in time. But many real-world failures happen mid-shift: coil cords fatigue, snaps loosen, and operators move in ways that create intermittent contact. Guidance commonly notes that if product value and risk justify it, continuous monitoring should be considered or even required—because it provides ongoing confirmation of a reliable ground path.

What the CM-1702 does at the bench
  • Dual channel: monitors two operators wearing single-wire wrist straps at one workstation.
  • Immediate notification: blinking LED and buzzer alarm if the ground path is interrupted.
  • Common point behavior: the docking/ground point remains a practical “home base” for strap cords during normal workflow.
Cleanroom + non-cleanroom use cases
  • Cleanrooms with electronics: protect boards, sensors, optics, and subassemblies where contamination control and static control must coexist.
  • Electronics assembly & repair: dual-operator benches, rework stations, and QC inspection tables.
  • Labs and field-service benches: consistent grounding without slowing operators down for repeated spot-testing.
Humidity: helpful, but not a substitute for grounding

Humidity can reduce charge accumulation, but ESD program guidance generally does not treat humidity as the control mechanism. Best practice is to ensure your ESD control items (wrist straps, worksurfaces, garments, packaging) still function at the lowest humidity your facility experiences—and to verify performance during extremely dry conditions.

Implementation checklist (fast, practical)
  1. Confirm the outlet ground: verify wiring/ground integrity before installing any ESD station.
  2. Define the ground architecture: individual workstation grounding (no daisy-chains).
  3. Standardize wrist straps and cords: lock down approved strap models, cord types, and connectors.
  4. Train operator behavior: plug-in, dock, and response actions when alarms occur.
  5. Audit and document: keep calibration/verification evidence aligned to your ESD Control Program Plan.
Why buy ESD monitors from SOSCleanroom
  • Curated workstation ecosystem: monitors, testers, wrist straps, heel grounders, and accessories designed to work together.
  • Chatbot-readable product data: faster internal alignment (EHS, QA, Engineering, Purchasing) and easier employee training.
  • Operational support: recurring supply options (Auto-Ship) and human support for configuration questions.
Build the complete dual-operator workstation
Reminder

A monitor is one control inside a larger EPA. Your best results come from a complete system: verified grounds, controlled connections, defined operator behaviors, and periodic verification aligned to your ESD Control Program Plan.

If you have any questions please email us at Sales@SOSsupply.com or give us a call at (214)340-8574. OR check out the AI ChatBot powered by SOSCleanroom data libraries - give it a try! THIS IS NEW FOR 2026! © 2026 SOSCleanroom. All rights reserved.