Handheld Particle Counters 3888 / 3889
Handheld 2.83 L/min particle counters for cleanroom spot checks and investigations: Model 3888 displays three particle sizes and Model 3889 displays six, both with 0.3 µm minimum sensitivity and ISO 21501-4 calibration compliance.
Products
| Model | Group | Positioning | Core fit |
|---|---|---|---|
| 3888 / 3889 | Handheld OPC | 3-channel (3888) or 6-channel (3889) handheld optical particle counter | Cleanroom certification, pharmaceutical monitoring, IAQ survey |
Key Features
ISO 21501-4 compliant — 0.3 µm minimum
The optical sensor meets ISO 21501-4 single-particle optical sizing requirements. manufacturer calibration certificate supplied as standard — satisfying regulatory requirements for calibrated instruments used in pharmaceutical, medical device and semiconductor cleanroom classification.
Model-specific channels at 2.83 L/min
Model 3888 displays 0.3, 0.5 and 5.0 µm; Model 3889 displays 0.3, 0.5, 1.0, 3.0, 5.0 and 10.0 µm. Sampling time and applicability must be checked against the required sample volume and procedure.
Optional stand for network connectivity
The optional stand provides RS485, Ethernet and WiFi connection points in the base for remote operation and data transfer. Confirm the required interface and accessory configuration before ordering.
Temperature and humidity option on the 3889
The 6-channel Model 3889 can be ordered with temperature and humidity measurement (±0.5 °C, ±3.0% RH between 30 and 85% RH), recording environmental conditions alongside particle counts. This function is an option and is not available on the 3-channel Model 3888.
Up to 10,000 CSV records on internal memory
Internal memory stores time-stamped sample records. Multiple sampling locations, sample IDs and dates can be managed on-device for cleanroom classification campaigns across multiple rooms. Records export in CSV format over USB for PC analysis.
Replaceable rechargeable battery
The replaceable lithium-ion battery supports approximately five hours of single-measurement operation according to current manufacturer specifications.
Technical Specifications
Model comparison — 3888 vs 3889
| Parameter | Model 3888 | Model 3889 |
|---|---|---|
| Particle size channels | 3 channels | 6 channels |
| Channel sizes | 0.3 / 0.5 / 5.0 µm | 0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0 µm |
| Temperature & humidity measurement | Not available | Available as an option (6-channel model only) |
| Sample flow rate | 0.1 CFM (2.83 L/min) | 0.1 CFM (2.83 L/min) |
| Display | 4.3 in colour LCD, resistive touch | 4.3 in colour LCD, resistive touch |
Common specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| OPTICAL SENSOR | ||
| Light source | — | Semiconductor laser diode |
| Detection principle | — | Single-particle optical scattering (OPS) |
| Min. detectable particle size | µm | 0.3 |
| Counting efficiency | % | 50 ± 20 for PSL particles near the minimum measurable size; 100 ± 10 for larger PSL particles |
| False count | particles | ≤ 1 per 5 minutes (JIS B9921, ISO 21501-4) |
| Size resolution | % | ≤ 15 for PSL particles near 0.3 µm (JIS B9921, ISO 21501-4) |
| Counting channels | — | 3888: 0.3 / 0.5 / 5.0 µm; 3889: 0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0 µm |
| Max. measurable concentration | particles/CF | 2,000,000 at 10% coincidence loss (JIS B9921, ISO 21501-4) |
| FLOW SYSTEM | ||
| Sample flow rate | L/min / CFM | 2.83 L/min / 0.1 CFM |
| Flow accuracy | % | ±5 (JIS B9921, ISO 21501-4) |
| TEMPERATURE & HUMIDITY — OPTION ON THE 6-CHANNEL MODEL (3889) | ||
| Temperature accuracy | °C | ±0.5 |
| Humidity accuracy | % RH | ±3.0 (30 – 85% RH); ±5 over the remainder of the range |
| Display resolution | °C / % RH | 0.1 / 0.1 |
| Response time | s | Approximately 60 or less (90% response) |
| USER INTERFACE | ||
| Display | — | 4.3 in colour LCD with resistive touch panel |
| Internal memory | records | Up to 10,000 records in CSV format |
| Operating languages | — | English, Japanese, Chinese, Spanish |
| COMMUNICATION | ||
| Standard | — | USB — host for printer and USB flash memory; device for PC |
| Optional stand | — | RS485, Ethernet and WiFi connection points provided in the base/stand |
| POWER | ||
| Battery type | — | Li-ion rechargeable, replaceable |
| Battery runtime | h | Approximately 5 hours in single-measurement operation |
| External supply | V | AC adapter, input 100 to 240 |
| OPERATING ENVIRONMENT | ||
| Main body | °C / % RH | 10 to 40 / 0 to 85, non-condensing |
| Probe | °C / % RH | 0 to 50 / 2 to 98, non-condensing |
| PHYSICAL | ||
| Dimensions W×H×D | mm | 213 × 100 × 55 |
| Weight | g | 650 |
| CALIBRATION | ||
| Calibration standard | — | manufacturer calibration certificate to ISO 21501-4 |
| Recommended interval | — | Annual manufacturer recommendation; site procedures may specify a different interval |
Specifications follow the current manufacturer product data (Kanomax Models 3888 / 3889, verified 29 August 2026). Values are summarized for page-level selection. Confirm final model configuration, accessories and calibration certificate before order placement.
Used in these solutions
Applications
EU GMP Annex 1 Grade A–D classification
Pharmaceutical cleanroom ISO Class 5–8 classification and EU GMP Annex 1 Grade A/B/C/D monitoring. 0.5 µm channel for Grade A primary compliance data; 5.0 µm for macroparticle tracking per EU GMP requirements.
ISO Class 3–6 spot checks
Semiconductor fab cleanroom spot checks and trending at ISO Class 3–6. 0.3 µm sensitivity enables Class 4–5 classification; the optional stand adds Ethernet for integration into fab monitoring.
ISO 14644-1 cleanroom certification
ISO Class 7–8 cleanroom certification for medical device manufacturing under ISO 13485 and EU MDR controlled environment requirements.
Operating theatre and pharmacy monitoring
Hospital operating theatre and pharmacy cleanroom airborne particle checks per HTM 03-01 (UK) and EN 15224.
ESD-controlled environment checks
IPC-A-610 Class 3 clean assembly environment verification and excursion investigation.
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