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Overview
Ethylene oxide is one of the most hazardous gases encountered in healthcare and industrial settings — not because it’s commonly handled carelessly, but because its danger profile is deceptively complex. EtO is colourless, has a faintly sweet odour that provides almost no reliable warning at dangerous concentrations, and is both acutely toxic and a confirmed human carcinogen. The OSHA permissible exposure limit is just 1 PPM as an 8-hour TWA — a level at which EtO causes no immediately obvious symptoms but creates serious long-term health risk with repeated exposure. In hospital sterilisation units, medical device manufacturing facilities, and industrial processing plants where ethylene oxide is used routinely, continuous personal monitoring is the only way to reliably protect workers at these low but hazardous concentrations.
The IGD BELLMINI ETO Portable Single Gas Detector is a personal clip-on monitor built specifically for ethylene oxide detection. It continuously tracks EtO concentration and delivers an immediate triple alarm when levels approach configured thresholds — providing protection wherever the worker is, not just where a fixed monitor happens to be installed.
Built by International Gas Detectors (IGD), a UK-based company whose entire engineering focus is industrial gas detection, the BELLMINI ETO combines ATEX Zone 0 certification, a 2-year battery life with no charging required, and the BELLCONNECT Bluetooth app in a 105g wearable unit. For healthcare facilities and medical device manufacturers operating under strict EtO regulatory frameworks, that combination — continuous personal protection, automatic compliance documentation, and remote fleet management — addresses the full compliance requirement, not just the detection piece.
Key Features
Dedicated EtO Detection — Low-Level Sensitivity
The BELLMINI ETO is calibrated for ethylene oxide detection at occupationally relevant concentrations. Given OSHA’s 1 PPM action level and 5 PPM excursion limit for EtO, accurate detection at low PPM levels is what makes personal monitoring meaningful in sterilisation environments. In medical device sterilisation facilities, where workers may be exposed to residual EtO during aeration, loading, and unloading operations, low-level sensitivity is the specification that actually matters for health protection.
Triple Alarm System — Audible, Visual and Vibration
When EtO levels breach configured thresholds, all three alarm channels activate simultaneously: a 100dB audible buzzer, multi-LED visual alerts, and a vibrating alarm. In hospital sterilisation units and cleanroom environments where background noise levels vary and workers may be focused on sterile processing tasks, a single-channel alarm is not sufficient. The triple system ensures the alert is received immediately regardless of conditions. Alarm levels cover Low, High, TWA, and STEL — matching the specific regulatory exposure parameters for EtO.
2-Year Battery Life — No Charging Required
A 3.6V lithium battery powers the BELLMINI ETO for 24 months without recharging. In healthcare settings where clinical operations run continuously and personal safety equipment must be reliably available across every shift, the 2-year battery life removes one of the most common personal monitor failure points entirely. A built-in confidence beep periodically confirms the unit is live and operational without a screen check.
IP68 Weatherproof and Dustproof
Full dust ingress protection and water submersion rating. Industrial sterilisation environments often involve cleaning processes, steam, and humidity. The BELLMINI’s IP68 housing ensures the detector continues to operate reliably in those conditions without needing protective cases or special handling between uses.
BELLCONNECT Bluetooth App
Via Bluetooth Low Energy or NFC tap within 10 metres, the BELLCONNECT app provides complete remote device management: calibration, bump testing, alarm setpoint adjustment, device-to-worker assignment, and access to up to 200 event logs and 5,000 data records from a smartphone. Calibration certificates are generated automatically. For healthcare facilities operating EtO sterilisation programmes under OSHA or EPA regulatory oversight, this automatic documentation capability significantly reduces compliance administration burden.
SAFE Mode Display
When no EtO is detected above alarm thresholds, the LCD displays “SAFE” — an immediate visual confirmation before entering a sterilisation chamber, aeration room, or storage area. In medical device processing workflows, pre-entry atmospheric confirmation is both a procedural requirement and a practical safety step that SAFE mode supports directly.
One-Button Operation
All primary device functions operate through a single button — no menus, no sequences to remember. Operable with gloves on and in sterile processing environments where simplicity and speed of operation are practical requirements. The less a worker has to think about operating a safety device, the more reliably it gets used correctly.
Replaceable Sensor and Battery
Both the EtO sensor and the battery are field-replaceable on-site without returning the unit. When the sensor reaches end-of-life, a replacement is installed directly. This extends the device body lifespan across multiple sensor cycles and keeps per-unit costs predictable across the full deployment period — particularly relevant for healthcare facilities managing equipment budgets over multi-year cycles.
Technical Specifications
Model: BELLMINI
Target Gas: Ethylene Oxide (EtO / ETO)
Weight: 105g (with belt clip)
Display: FSTN LCD (1.6 inch)
Battery Life: 24 months (3.6V Lithium, size 2/3 AA)
IP Rating: IP68
Alarm Types: Visual (LED), Audible (100dB@10cm), Vibration — Low, High, TWA, STEL
Wireless: Bluetooth Low Energy (BLE), NFC
Response Time: 20 seconds (Toxic Gas)
Data Logging: Up to 200 alarm events, 5,000 data logs
Humidity Range: 5% to 95% RH (non-condensing)
Safety Approvals: ATEX, IECEx, KCs
App: BELLCONNECT (iOS and Android)
Benefits
Continuous personal protection at the concentrations that matter for EtO. Because EtO causes harm at chronic low-level exposures rather than through acute high-level incidents, a personal monitor that is continuously operational across every shift — without a charging requirement — is the only approach that provides genuine occupational health protection for sterilisation workers.
Compliance documentation that matches regulatory requirements. OSHA’s EtO standard requires employers to maintain air monitoring records and document worker exposures. The BELLCONNECT app generates timestamped calibration certificates, bump test records, and exposure event logs automatically — giving compliance officers exactly the documentation framework the regulation requires without manual record-keeping.
No charging cycle to manage in a clinical or shift-based operation. A 24-month battery life removes the need for a charging infrastructure, a rotation schedule, and the daily verification that each device was charged before the shift. In healthcare settings where clinical operations cannot be interrupted for equipment management, this is a meaningful operational simplification.
Named worker exposure records for regulatory and health surveillance purposes. Device-to-worker assignment through the BELLCONNECT app links EtO exposure data to a named individual. For healthcare employers required to maintain long-term health surveillance records for EtO-exposed workers, this individual attribution is a direct compliance requirement, not just a convenience feature.
Lower long-term cost for facilities managing equipment over multi-year cycles. Field-replaceable sensors extend the device body lifespan across multiple sensor lifetimes. For healthcare procurement teams managing capital equipment budgets over 5–7 year cycles, the difference in total cost of ownership versus full-unit-replacement alternatives is significant across a fleet of 20–50 monitors.
Who It’s For
The Sterile Processing Manager at a Hospital or Surgical Centre
You’re responsible for EtO sterilisation operations and the health protection of the technicians who load, unload, and manage aeration of sterilised devices. You need personal monitors that are always operational across rotating shifts, generate the exposure documentation your occupational health programme requires, and can be managed across your team without adding to your administrative workload. The BELLMINI ETO and BELLCONNECT platform are designed for that specific requirement.
The HSE Officer at a Medical Device Sterilisation Facility
Your facility runs industrial-scale EtO sterilisation for medical device manufacturers and operates under both OSHA EtO standard requirements and EPA air emission regulations. You need personal monitors that provide individual worker exposure records, support your industrial hygiene monitoring programme, and generate the documentation your regulatory reporting requires. The BELLMINI ETO’s automatic calibration certificates and named worker assignment through the BELLCONNECT app directly support that compliance framework.
The Procurement Manager Specifying EtO Monitoring Equipment for a Healthcare Group
You’re standardising personal EtO detection across multiple hospital sterilisation departments or contract sterilisation facilities. You need ATEX certification, IP68 durability, maintenance-free battery life, replaceable sensor design, and app-based compliance documentation — all in a single device specification that works across a fleet. The BELLMINI ETO addresses all of those requirements with the added assurance of IGD’s specialist gas detection background.
Possible Applications
- Hospital central sterile services departments — Personal protection for technicians operating EtO sterilisers, managing aeration cycles, and handling sterilised loads
- Contract medical device sterilisation facilities — Industrial-scale EtO sterilisation operations for medical device manufacturers requiring continuous personal monitoring
- Medical device manufacturing — EtO sterilisation of finished medical devices in enclosed sterilisation chambers and aeration rooms
- Pharmaceutical sterilisation — EtO used for sterilisation of pharmaceutical packaging, components, and raw materials in enclosed processing environments
- Veterinary and dental instrument sterilisation — Smaller-scale EtO sterilisation operations in veterinary clinics and dental laboratories
- Chemical manufacturing — EtO as a chemical intermediate in ethylene glycol, surfactant, and ethoxylate production
- Fumigation of cultural heritage materials — EtO used for insect control in museum archives and library collections in enclosed treatment chambers
- Industrial cold sterilisation — EtO sterilisation of heat-sensitive components, electronics, and materials in manufacturing environments
Trust and Certifications
ATEX: Ex II 1G Ex ia IIC T4 Ga
ATEX is the European standard for equipment used in explosive atmospheres. Zone 0 classification — the most stringent level — confirms the BELLMINI ETO is approved for continuous use in locations where explosive gas is present. EtO is both toxic and flammable, making ATEX certification particularly relevant for industrial sterilisation environments where both hazard types are present simultaneously.
IECEx: Ex ia IIC T4 Ga
The globally accepted equivalent of ATEX, recognised in over 50 countries including Australia, the Middle East, and Asia-Pacific. For healthcare groups and medical device manufacturers with international operations, IECEx removes the need for separate national certifications in most jurisdictions.
KCs Certified
Korean industrial safety certification required for deployment in South Korean facilities. Accepted across a number of other Asian markets — relevant for medical device manufacturing and healthcare operations across the Asia-Pacific region.
2-Year Manufacturer Warranty
Standard device warranty for 24 months from purchase. Sensor warranty terms are subject to individual sensor data. For a device deployed in daily EtO environments, a 2-year warranty provides meaningful procurement assurance and supports long-term equipment planning.
IGD — International Gas Detectors
Based in Stockport, UK, IGD’s entire engineering focus is gas detection — fixed and portable systems for industrial and healthcare clients worldwide. The BELLMINI is not a general instrumentation product; it is the result of decades of specialist development by a company for whom industrial gas detection is the complete business focus.
Accessories and Variants
BELLCONNECT App (Free — iOS and Android)
Essential for healthcare and industrial teams managing EtO personal monitors — calibration, bump testing, alarm configuration, exposure data logging, compliance reporting, and individual worker assignment from one smartphone interface.
Alligator/Belt Clip (Included)
Positions the sensor correctly in the breathing zone during sterilisation and aeration operations. Attaches securely to scrubs, work clothing, PPE, or equipment straps without restricting movement.
Replacement EtO Sensor Modules
Field-swappable when the ethylene oxide sensor reaches end-of-life. Keeps the device body in continuous service and avoids full unit replacement costs — particularly relevant for healthcare facilities managing equipment budgets over extended cycles.
Calibration Gas Kits
Available separately for on-site bump testing and full calibration. The BELLCONNECT app guides the process and generates a dated calibration certificate automatically on completion — supporting your industrial hygiene monitoring programme documentation.
Available BELLMINI Variants
POR-GDIS-ETO — Ethylene Oxide (EtO) | Low-level PPM range
POR-GDIS-CO — Carbon Monoxide (CO) | 1–1000 PPM
POR-GDIS-H2S — Hydrogen Sulfide (H2S) | 0.1–100 PPM
POR-GDIS-O2 — Oxygen (O2) | 0.1–30% VOL
POR-GDIS-NH3 — Ammonia (NH3) | 1–100 PPM
POR-GDIS-HCN — Hydrogen Cyanide (HCN) | 0–100 PPM
POR-GDIS-SO2 — Sulfur Dioxide (SO2) | 0.1–20 PPM
POR-GDIS-HCL — Hydrogen Chloride (HCl) | 0–15 PPM
POR-GDIS-NO — Nitric Oxide (NO) | 0–250 PPM
POR-GDIS-PH3 — Phosphine (PH3) | 0–20 PPM
Get in Touch
If ethylene oxide monitoring is part of your facility’s safety or compliance programme — whether for a hospital sterilisation department, medical device manufacturer, or industrial EtO processing operation — the BELLMINI ETO is worth a detailed evaluation against your current personal protection setup.
Contact Alright Engineering Solutions to request a formal quote, arrange a product demonstration, or discuss volume pricing for healthcare or industrial fleet deployments.
📍 3791 Jalan Bukit Merah #06-01, E-Centre @ Redhill, Singapore 159471
