Sensorium™ Sensor Node — BLE Smart Sensor Node Platform
Datasheet · sensorium-sensor-node-datasheet · Revision Draft (Preliminary) · 2026-07-18
PRELIMINARY — PROPOSED VALUES. Values marked ‡ are proposed, industry-typical figures for this product class, provided so no specification is left blank. They are not measured and not final, and no value in this document is a certification claim. Engineering must confirm every ‡ value before this datasheet is released as final. The node is a configurable sensing carrier: the sensing figures in §4 are representative per-variant values and must be confirmed per build. See §12 for change control.
Figure FIG-001 — Sensorium™ Sensor Node, the low-power Sense layer of the Sensorium™ family.
1. At a glance
The Sensorium™ Sensor Node is the Sense platform of the 5Tech Sensorium™ family: a small, low-power, battery-powered wireless sensor node built on Bluetooth Low Energy (BLE). It hosts a configurable set of sensing elements and reports their readings over BLE to a nearby Sensorium™ Gateway, which relays the data over MQTT over TLS to the 5Tech Platform (dashboard, cloud, and edge pipeline).
Sold two ways, one platform. The Sensor Node is offered directly as Base and Developer nodes (this datasheet) and is the internal platform that underlies the SmartBolt (fastener load/vibration sensing) and Zone Awareness (proximity/zone sensing) products. Those products are ordered under their own identities; a generic node is ordered here. Because they share this platform, the Sensorium™ Gateway aggregates SmartBolt, Zone Awareness, and generic Sensor Nodes on one BLE downlink — the family is one radio and one data path.
| Product | Sensorium™ Sensor Node (BLE Smart Sensor Node Platform) |
| Family / role | Sensorium™ · Sense |
| Function | Field sensing and wireless (BLE) reporting to the Sensorium™ Gateway |
| Sold as | Base node · Developer/evaluation node (this datasheet) |
| Also the platform behind | SmartBolt and Zone Awareness (ordered under their own identities) |
| Sensing | Configurable carrier — vibration, temperature, motion/tilt, proximity, load/strain, environmental (representative per-variant values in §4) |
| Wireless | Bluetooth Low Energy 5.2‡ only — no cellular / satellite / Wi-Fi on the node |
| Nodes per Gateway | Up to 50‡ (BLE 5.x central capacity of the Sensorium™ Gateway) |
| Power | AA-size Li-SOCl₂ primary cell, 3.6 V / 2400 mAh‡ (rechargeable Li-ion option); ≥ 5 yr‡ typical life |
| Enclosure | Glass-fibre-reinforced polyamide; IP67‡ (IEC 60529) |
| Operating temperature | −40 °C to +85 °C‡ (primary-cell variant; see §8) |
Key features
- Small, low-power, battery-powered BLE wireless sensor node, ≥ 5 yr‡ typical life on a primary cell (see §6.2 for the full basis).
- Base sensing platform for the Sensorium™ family — sold as Base/Developer nodes and used internally by SmartBolt and Zone Awareness.
- Configurable sensing carrier: vibration, temperature, motion/tilt, proximity, load/strain, and environmental conditions — representative per-variant ranges and accuracies in §4.
- Reports over Bluetooth Low Energy 5.2‡ to the Sensorium™ Gateway — no cellular, satellite, or Wi-Fi radio on the node itself.
- Up to 50‡ nodes aggregate to a single Sensorium™ Gateway (BLE central capacity), reconciling with the Gateway datasheet and the SmartBolt bolts-per-Gateway figure.
- Contributes to the node → Gateway → MQTT/TLS → 5Tech Platform data path.
Typical applications
- Wireless condition monitoring of assets, structures, and equipment near a Gateway.
- Retrofit sensing where wired instrumentation is impractical.
- The sensing basis for fastener monitoring (SmartBolt) and worksite proximity/zone alerting (Zone Awareness).
Not a safety-rated device. The node is a sensing and alerting platform, not a certified safety controller. It does not by itself stop machinery or form a certified protective zone.
2. System context
The Sensor Node is the Sense origin of the chain. Readings flow up over BLE through the Gateway to the 5Tech Platform; configuration and rule-based automation flow back down.
Figure FIG-002 — Sense → Connect → Decide. The Sensor Node reports over BLE to the Gateway.
- Sense — the Sensorium™ Sensor Node (and the SmartBolt / Zone Awareness products built on it) measures physical signals in the field.
- Connect — the Sensorium™ Gateway aggregates node data over BLE (up to 50‡ nodes of any mix — generic, SmartBolt, Zone Awareness) and relays it over MQTT/TLS.
- Decide — the 5Tech Platform (dashboard, cloud/edge pipeline, and rule-based automation) turns readings into visualization, alerts, and AI-assisted reports (human-in-the-loop).
3. Functional overview
Figure FIG-003 — Functional blocks: sensing front-end, low-power MCU, BLE radio, and battery/power management. Internal detail preliminary.
The node combines four functional groups:
- Sensing front-end — interfaces to the configured sensing element(s) over I²C / SPI / analog / digital‡ channels and conditions their signals. The sensor set is platform-configurable and variant-specific (see §4).
- Low-power controller — samples the sensors, applies basic on-node processing (e.g. thresholding / event detection / RMS-and-FFT vibration features), and manages sleep/wake duty cycling to conserve battery.
- BLE radio — advertises to and exchanges data with the Sensorium™ Gateway over Bluetooth Low Energy 5.2‡. There is no cellular, satellite, or Wi-Fi uplink on the node.
- Power management — battery supply (primary Li-SOCl₂ cell or rechargeable Li-ion option)
with low-power / sleep management; an external-power option is offered on the
-Pvariant.
Data path: sensing element → sensing front-end → controller (sample / detect) → BLE → Sensorium™ Gateway → MQTT/TLS → 5Tech Platform. Configuration flows back to the node over BLE from the Gateway.
4. Sensing
The Sensor Node is a configurable sensing carrier: a given build populates one or more sensing elements onto the common low-power platform. The quantities below are the supported measurands; the ranges, accuracies, resolutions, and sample rates are representative per-variant figures for typical MEMS/digital sensing elements and must be confirmed per build against the element actually fitted and its calibration.
All figures are ‡ proposed and stated with their measurement condition. Accuracy is stated after factory calibration unless noted; resolution is the smallest reported step (sensor LSB or reporting quantum), not a guarantee of accuracy.
| Quantity | Representative range‡ | Accuracy‡ | Resolution‡ | Sample rate‡ | Condition |
|---|---|---|---|---|---|
| Vibration / acceleration | ±2 / ±4 / ±8 / ±16 g (selectable) | ±3 % of reading | 0.98 mg/LSB @ ±2 g | Output data rate up to 6.4 kHz; 0–3.2 kHz usable band | Triaxial MEMS accelerometer, 25 °C; reported as RMS velocity + FFT features |
| Temperature (process/contact) | −40 to +125 °C | ±0.5 °C (0…+65 °C); ±1.0 °C full range | 0.0625 °C | Up to 1 Hz | Digital sensor, still air, 25 °C reference |
| Motion / tilt | ±180° (tilt); wake-on-motion | ±1° (tilt) | 0.1° | Up to 10 Hz; event-driven wake | Derived from the triaxial accelerometer, quasi-static, 25 °C |
| Proximity / presence | 0.05–4 m (time-of-flight); up to 5 m (PIR) | ±3 % of reading (ToF) | 1 mm (ToF) | Up to 10 Hz | ToF/PIR element, indoor, target reflectivity ≥ 20 %, 25 °C |
| Load / strain (SmartBolt basis) | 0–100 % of rated preload (0–50 kN typical) | ±2 % of full scale | 0.1 % of full scale | Up to 10 Hz | Strain-gauge/load-cell input, after per-fastener calibration, 25 °C |
| Environmental — humidity | 0–100 % RH | ±2 % RH (10…90 % RH) | 0.04 % RH | Up to 1 Hz | Digital RH sensor, non-condensing, 25 °C |
| Environmental — pressure | 300–1100 hPa | ±1 hPa | 0.01 hPa | Up to 1 Hz | Digital barometric sensor, 25 °C |
The node reports engineering values and/or on-node features (e.g. vibration RMS velocity and FFT peaks) rather than raw streams, to conserve battery and BLE bandwidth. Which quantities a unit provides is set by its variant (§5 ordering) and confirmed on its rating label. Values above are illustrative of the sensing class and not measured on a specific unit.
5. Ordering information
Order codes below are the proposed scheme; the base identifier and suffixes are ‡ pending confirmation. Configure = base + sensing option + power option. SmartBolt and Zone Awareness are ordered under their own product identities, not here.
| Order code | Configuration | Notes |
|---|---|---|
SEN-SN-100‡ |
Base node | Standard sensing set, Li-SOCl₂ primary cell |
SEN-SN-100-X‡ |
Extended-sensor variant | Additional / alternate sensing element (§4) |
SEN-SN-100-R‡ |
Rechargeable variant | Rechargeable Li-ion cell in place of the primary cell |
SEN-SN-100-P‡ |
External-power variant | External-power input fitted (§6.2) |
SEN-SN-100-DEV‡ |
Developer / evaluation node | For sensor integration and bring-up |
Accessories and spares: see §10.
6. Mechanical & power specifications
Figure FIG-004 — Overall dimensions and mounting provisions (mm). Values ‡ proposed.
6.1 Mechanical
| Parameter | Value | Condition / note |
|---|---|---|
| Dimensions (W × H × D) | 50 × 50 × 25 mm‡ | Base enclosure only; excludes mounting bracket and any external sensor lead; varies by sensing variant |
| Weight | 60 g‡ | Base variant, including battery |
| Mounting | M5 stud, adhesive pad, magnetic base, or bracket‡ | Per variant; vibration-qualified per §8 |
| Enclosure material | Glass-fibre-reinforced polyamide (PA6-GF30), UV-stabilised‡ | Non-metallic so the internal BLE antenna radiates through the housing |
| Enclosure colour / finish | Graphite grey, textured‡ | |
| Battery door | Captive-screw sealed door with gasket‡ | Retains IP67 when closed and undamaged (§8) |
| Ingress protection | IP67‡ (IEC 60529) | Battery door and seals closed; see §8 |
6.2 Power & battery
All power values are ‡ proposed and stated with their measurement condition. The base and
extended variants use a primary lithium cell; the -R variant substitutes a rechargeable cell;
the -P variant adds an external supply.
| Parameter | Min | Typ | Max | Unit | Condition |
|---|---|---|---|---|---|
| Battery chemistry (base) | — | Li-SOCl₂ primary‡ | — | — | AA-size, non-rechargeable; chosen for wide-temperature, long shelf life |
| Battery voltage (base) | 3.0 | 3.6 | 3.67 | V DC‡ | Li-SOCl₂ nominal 3.6 V, at the cell terminals |
| Battery capacity (base) | — | 2400‡ | — | mAh | AA-size Li-SOCl₂, 25 °C |
Battery chemistry (-R option) |
— | Li-ion rechargeable‡ | — | — | 3.7 V nominal; do not charge below 0 °C or above +45 °C (§8) |
Battery capacity (-R option) |
— | 1000‡ | — | mAh | Li-ion, 25 °C |
| Operating voltage (node input) | 2.5‡ | 3.6 | 3.67‡ | V DC | At the node input, from the fitted cell |
| Active current | — | 25‡ | 40‡ | mA | During sample + BLE transmit @ +8 dBm, 3.6 V, 25 °C |
| Sleep current | — | 8‡ | — | µA | Between reports, radio idle, 25 °C |
| Battery life (base) | — | ≥ 5‡ | — | yr | Li-SOCl₂ 2400 mAh @ 15-min reporting interval, 20-byte payload, +25 °C; derates at temperature extremes and shorter intervals |
External power (-P option) |
5‡ | — | 30‡ | V DC | At the external input; SELV; reverse-polarity protected |
Charge temperature (-R option) |
0‡ | — | +45‡ | °C | Rechargeable variant only; no charging outside this window |
Battery life is a proposed target and depends heavily on sensing mode, reporting interval, payload size, and temperature; it is not a measured guarantee. Continuous or high-rate vibration capture reduces life substantially compared with the 15-min interval basis above.
7. Wireless (BLE) & interfaces
The node's only uplink is Bluetooth Low Energy to the Sensorium™ Gateway. It has no cellular, satellite, or Wi-Fi radio. A local service/configuration interface is provided for bring-up.
| Interface | Specification | Notes |
|---|---|---|
| Wireless uplink | Bluetooth Low Energy 5.2‡, 2.4 GHz | To the Sensorium™ Gateway; peripheral role |
| RF band | 2.4 GHz ISM, 2402–2480 MHz‡ | Per Bluetooth Core 5.2 |
| TX power | +8 dBm‡ (configurable −20…+8 dBm) | @ antenna port, 3.6 V, 25 °C |
| Receiver sensitivity | −95 dBm‡ | @ 1 Mbps LE, BER 1e-3 |
| Wireless range | 30 m‡ line-of-sight | Open field, +8 dBm TX, −95 dBm RX, no obstruction; falls sharply indoors / around metal |
| Nodes per Gateway | Up to 50‡ | BLE central capacity of the Sensorium™ Gateway (mix of generic / SmartBolt / Zone Awareness) |
| Antenna | Integrated PCB/chip antenna‡ | Radiates through the non-metallic enclosure; external-antenna option per variant |
| Pairing / security | LE Secure Connections (ECDH P-256) + AES-128-CCM‡ | Bonded pairing to a claimed Gateway; link encryption; no open pairing in service |
| Sensor interface(s) | I²C / SPI / analog / digital‡ | Internal, to the fitted sensing element(s) — per variant (§4) |
| Local service interface | BLE service profile (provisioning / firmware)‡ | Authenticated; access method confirmed per firmware |
Security. Node-to-Gateway pairing uses LE Secure Connections (ECDH key agreement) with AES-128-CCM‡ link-layer encryption, bonded to a specific claimed Gateway. End-to-end transport to the 5Tech Platform (MQTT over TLS) is handled by the Gateway, not the node.
Radiated-power and range figures are ‡ proposed and depend on regional radio type-approval and on installation; confirm by test and against the approvals of §9.
8. Environmental & ratings
| Parameter | Value | Standard / condition |
|---|---|---|
| Operating temperature (base, primary cell) | −40 °C to +85 °C‡ | Ambient; battery life derates toward the extremes |
Operating temperature (-R rechargeable) |
−20 °C to +60 °C‡ (discharge) | Ambient; charge only 0 °C…+45 °C (§6.2) |
| Storage temperature | −40 °C to +85 °C‡ (primary); −20 °C to +45 °C‡ (-R long-term) |
Battery removed for extended storage |
| Ingress protection | IP67‡ | IEC 60529; battery door and seals closed and undamaged |
| Humidity | 5–95 % RH‡ | Non-condensing |
| Altitude | ≤ 2000 m‡ | Operating |
| Pollution degree | 2‡ | IEC 61010-1 |
| Overvoltage category | I‡ (battery/SELV); II‡ for the -P external-power variant |
IEC 61010-1 |
| Vibration | 10–500 Hz, 5 g‡, 20 sweeps/axis | IEC 60068-2-6, stud/bracket-mounted |
| Shock | 50 g‡, 11 ms half-sine, 3 shocks/axis/direction | IEC 60068-2-27 |
| ESD immunity | ±8 kV contact / ±15 kV air‡ | IEC 61000-4-2 |
| Radiated RF immunity | 10 V/m, 80 MHz–2.7 GHz‡ | IEC 61000-4-3 |
Surge (-P external input) |
±1 kV‡ line-to-earth | IEC 61000-4-5 (1.2/50 µs); external-power variant only |
All environmental figures are ‡ proposed targets, not yet verified by test. The enclosure is a sensing/alerting device, not a safety-rated barrier; ingress protection is valid only with the battery door, gaskets, and seals intact and closed.
9. Compliance & standards
No certification is currently held. The table lists the intended certification programme; no
mark below may be shown on the product, packaging, or marketing until certified with a report on
file (recorded in references.md).
| Area | Intended standard | Status |
|---|---|---|
| Radio / telecom (per region) | FCC Part 15B/C / ISED RSS-247 / RED (EU) 2014/53/EU‡ | Planned — not yet submitted |
| Bluetooth qualification | Bluetooth SIG QDID declaration‡ | Planned — not yet listed |
| EMC | EN 55032 / EN 55035 / EN 61000-6-2 / -6-4‡ | Planned — not yet tested |
| Electrical safety | IEC/EN 62368-1‡ | Planned — not yet tested |
| Battery cell safety / transport | IEC 62133-2 (cells) / UN 38.3 (transport)‡ | Planned — not yet tested |
| Environmental (materials) | RoHS (EU 2011/65) / REACH‡ | Planned — declaration pending |
Radio type-approval is required before the product may be sold in any market; it is not yet held. The node is not a safety-rated device and no functional-safety standard (e.g. IEC 61508 / ISO 13849) is claimed or intended.
10. Accessories & related products
| Item | Order code | Purpose |
|---|---|---|
| Replacement battery (Li-SOCl₂, AA) | SEN-SN-ACC-BAT‡ |
Primary cell per §6.2 |
Replacement battery (Li-ion, -R) |
SEN-SN-ACC-BATR‡ |
Rechargeable cell per §6.2 |
| Mounting kit (bracket / adhesive / magnet) | SEN-SN-ACC-MNT‡ |
Field mounting |
| External antenna (option) | SEN-SN-ACC-ANT‡ |
Extended BLE range |
External-power adapter (-P option) |
SEN-SN-ACC-PWR‡ |
External-power variant |
| Battery-door seal / gasket kit | SEN-SN-ACC-SEAL‡ |
Restores IP67 after service |
Related documents
- Manual:
manuals/sensorium-sensor-node-manual/— operation, BLE pairing, configuration, battery maintenance. - Installation:
installation/sensorium-sensor-node-installation/— mount, power, pair, verify. - Reports to: Sensorium™ Gateway datasheet (
datasheets/sensorium-gateway-datasheet/). - Products built on this platform: Sensorium™ SmartBolt (fastener sensing), Sensorium™ Zone Awareness (proximity/zone sensing).
- Works with: the 5Tech Platform (dashboard · MQTT/TLS cloud pipeline · edge · rule-based automation).
11. Monitored signals & alert behaviour (illustrative)
Figure FIG-005 — Illustrative — a monitored signal crossing its configured alert threshold (or an abnormal trend) raises an alert; a person decides on any action. Representative behaviour, not measured data.
The Sensor Node reports its monitored signal over BLE (via the Gateway) to the 5Tech Platform; when the signal crosses a configured threshold or shows an abnormal trend, the Platform raises an alert and a person decides on any action. The chart is illustrative; thresholds are configured per deployment.
| Signal | Example alert trigger‡ | Response |
|---|---|---|
| Vibration | RMS velocity rises above a configured threshold or trends abnormally‡ | Alert + notify (person decides) |
| Temperature | Temperature crosses a configured limit‡ | Alert + notify (person decides) |
| Reporting / battery | The node stops reporting beyond 3× its interval, or battery falls below 10 %‡ | Alert + notify (person decides) |
Illustrative — representative, not measured; trigger values ‡ proposed and configurable.
12. Revision & change control
| Revision | Date | Change | Author |
|---|---|---|---|
| Draft (Preliminary) | 2026-07-08 | Initial authored content; values [TBD]. |
Documentation |
| Draft (Preliminary, PROPOSED) | 2026-07-18 | Industrialization pass: added the Sensing section (§4) with representative per-variant ranges/accuracy/resolution/sample rate and conditions; clarified SKU-vs-platform identity and family framing; added Nodes-per-Gateway capacity (up to 50‡); selected battery chemistry (Li-SOCl₂ primary + Li-ion option) with capacity, life basis, and charge limits; filled all electrical/mechanical/wireless/environmental specs with conditioned ‡ proposed values and specific test standards; rewrote Compliance to an intended-programme table (no held mark); renamed Safety Zone → Zone Awareness in text; added this revision block. | Documentation |
Full change history: revision.md. Sources and cited standards: references.md.
Figures
| ID | Title | File | Aspect | Purpose |
|---|---|---|---|---|
| FIG-001 | Industrial Hero Render | renders/hero_sensor-node.png |
16:9 | Cover / hero image |
| FIG-002 | System Context | diagrams/system_context.png |
16:9 | Where the node sits in the Sense → Connect → Decide chain |
| FIG-003 | Functional Block Diagram | diagrams/block_diagram.png |
4:3 | Internal functional architecture |
| FIG-004 | Dimension Drawing | cad/dimensions.png |
4:3 | Mechanical dimensions for specification & mounting |
| FIG-005 | Signal & Alert Behaviour (illustrative) | diagrams/signal_threshold_chart.png |
16:9 | How a monitored signal crossing a threshold raises an alert (illustrative, not measured data) |
Specifications are preliminary; ‡ values are proposed and subject to engineering confirmation
and change. Figure source of truth: figures.json. See revision.md for change control,
references.md for sources, and image_prompts.md for the figure/prompt index. Web publication
target: /documents/datasheets/sensor-node/.