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| Brand | AUCMA |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | AKMS-03 (Standard Temp/Humidity Logger), AKMB-03D (Cryogenic Sensor Module), AKMB (Wireless Gateway) |
| Instrument Type | Multi-Channel |
| IP Rating | AKMS-03: IP67 |
| AKMB-03D & AKMB | IP54 |
| Operating Frequency | 433 MHz |
| Temperature Range | AKMS-03 (Standard Battery): –20 °C to +60 °C |
| AKMS-03 (Low-Temp Battery) | –40 °C to +70 °C |
| AKMB-03D | –200 °C to +150 °C |
| Temperature Accuracy | AKMS-03: ±0.5 °C |
| AKMB-03D | ±(0.3 + 0.005t) °C |
| Temperature Resolution | 0.1 °C |
| Humidity Range | 0–99% RH |
| Humidity Accuracy | ±3% RH (typical, 20–80% RH) |
| Memory Capacity | AKMS-03: 4 Mbit (≈100,000 records) |
| AKMB | ≥100,000 records (expandable) |
| Battery | AKMS-03: 2 × CR2450 (non-rechargeable, 2–5 yr life) |
| AKMB-03D & AKMB | 2 × 18650 Li-ion (rechargeable) |
| Communication | interBow® proprietary LPWAN protocol (433 MHz), GPRS/2G (mobile & Unicom networks) |
| Transmission Distance | ≥650 m (line-of-sight) |
| Data Security | End-to-end encrypted transmission |
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