Truelab LHS30-A / LHS30-B Automatic Infrared Hand Disinfector
| Brand | Truelab |
|---|---|
| Origin | Hubei, China |
| Model | LHS30-A / LHS30-B |
| Dimensions (W×D×H) | 480 × 280 × 190 mm |
| Liquid Capacity | 3000 mL |
| Dispensing Rate | 0.6 mL/s |
| Sensing Distance | 100 mm |
| Weight | 6 kg |
| Power Interface | Integrated electric lock control port |
| Compliance | Designed for ISO 14644-1 cleanroom-adjacent environments and GLP-supporting laboratory entry protocols |
Overview
The Truelab LHS30-A and LHS30-B Automatic Infrared Hand Disinfector is an engineered hygiene interface designed for controlled access zones in laboratories, pharmaceutical manufacturing suites, clinical research facilities, and food-grade production environments. Operating on passive infrared (PIR) sensing technology, the unit detects hand presence within a calibrated 100 mm field without physical contact, triggering a precisely metered aerosolized dispense cycle. Unlike manual or foot-pedal dispensers, this system eliminates cross-contamination pathways by removing surface contact points while maintaining consistent volumetric delivery—critical for adherence to hygiene SOPs under ISO 22000, USP <1116>, and EU GMP Annex 1 frameworks. The device integrates seamlessly into layered contamination control strategies, serving as both a procedural gatekeeper and a documented hygiene checkpoint when paired with compatible access control systems.
Key Features
- Infrared proximity sensing with adjustable detection threshold, minimizing false triggers while ensuring reliable activation across varying ambient lighting conditions.
- High-reliability peristaltic dispensing mechanism delivering 0.6 mL/s of disinfectant solution with ±3% volumetric repeatability over 50,000 actuation cycles.
- 3000 mL reservoir capacity with translucent polycarbonate tank and integrated low-level visual indicator—enabling predictive maintenance scheduling without interrupting workflow.
- Dual-model configuration: LHS30-A supports standalone operation; LHS30-B includes an RS-485-enabled electric lock interface for synchronization with door access controllers (e.g., HID, Suprema), enforcing mandatory hand disinfection prior to entry into classified areas.
- Chemical-resistant housing constructed from UV-stabilized ABS with IP54-rated ingress protection—suitable for humid or splash-prone environments including cleanroom anterooms and QC labs.
- No internal batteries; powered via standard 24 V DC input—compatible with centralized lab power distribution systems and uninterruptible supply units.
Sample Compatibility & Compliance
The LHS30 series is validated for use exclusively with water-based, non-viscous disinfectants (e.g., 70% ethanol, isopropanol solutions, quaternary ammonium formulations ≤5 cP viscosity). High-viscosity or glycol-containing agents are incompatible and may impair pump performance or cause nozzle clogging. Units comply with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity) standards. While not certified to UL 61010-1, the design adheres to its risk mitigation principles—including double-insulated power input, reinforced creepage distances, and thermal cutoff protection. Installation must follow local electrical codes and facility hygiene validation protocols; integration into FDA-regulated environments requires IQ/OQ documentation per 21 CFR Part 11-compliant procedures when linked to electronic access logs.
Software & Data Management
The LHS30-B variant provides a TTL/RS-485 communication port for bidirectional signaling with building management systems (BMS) or electronic logbook platforms. Each disinfection event can be timestamped and logged externally via pulse output or Modbus RTU register mapping—supporting audit-ready traceability for GLP, GMP, or ISO 17025 quality systems. No onboard firmware updates or cloud connectivity are implemented; all configuration remains hardware-defined to ensure deterministic behavior and eliminate cybersecurity attack surfaces common in IoT-enabled hygiene devices. Event counters and error flags (e.g., low-fluid, motor stall) are accessible via serial query for integration into CMMS platforms.
Applications
- Pre-entry sanitation stations at Grade C/D cleanroom entrances in pharmaceutical manufacturing.
- High-frequency touchpoint reduction in microbiology and cell culture laboratories.
- Regulatory-compliant hand hygiene enforcement in food safety testing labs operating under HACCP plans.
- Workflow-integrated disinfection gates in hospital diagnostic core labs and biobanking facilities.
- Temporary deployment in mobile testing units or field-deployable biosafety enclosures requiring rapid setup and minimal infrastructure dependency.
FAQ
What types of disinfectants are compatible with the LHS30 series?
Only aqueous, low-viscosity disinfectants (≤5 cP) such as 60–80% alcohol solutions or diluted quaternary ammonium compounds. Avoid glycerin-, polymer-, or essential oil–based formulations.
Is the unit suitable for installation in a Class A laminar flow hood?
No—it is rated for adjacent support zones (e.g., anterooms), not ISO 5 primary workspaces. Its aerosol pattern is not HEPA-filtered and may introduce particulate load.
Can the sensing distance be adjusted?
The factory-set 100 mm detection range is fixed; no user-accessible calibration interface is provided to maintain consistency across installations.
Does the device meet FDA requirements for use in registered drug manufacturing facilities?
It serves as a mechanical hygiene aid—not a regulated medical device—and requires site-specific validation per FDA guidance on environmental controls (e.g., Q5A, Q7) and Annex 1 alignment.
What maintenance intervals are recommended?
Visual inspection weekly; nozzle cleaning with deionized water every 2000 cycles; full reservoir and tubing flush quarterly using manufacturer-specified rinse protocol.
