Multi-Point Sensing
Up to four temperature points plus humidity and optional moisture. Six configurable channels support the monitoring profile required for cold chain, concrete, or environmental applications.
Industrial Wireless Sensors
Open Telematics Sensors
A configurable LTE battery-powered platform for environmental monitoring, with multi-point sensing and long-life operation for industrial asset deployments.
- LTE-M / NB-IoT with global band support
- Up to 10 years battery life
- Precision sensing: ±0.2°C / ±2% RH
- IP67 ruggedized enclosure
Platform Capabilities
Platform Capabilities
One device with configurable channels. Enable temperature, humidity, and optional moisture monitoring to match your deployment without committing to a fixed variant.
Industrial Interfaces
1-Wire and I²C for industry-standard sensors; analog for moisture and battery monitoring. Reliable, proven interfaces for harsh environments and long cable runs.
Cellular and Network KPIs
LTE-M and NB-IoT with direct-to-cloud connectivity. Every reading can include modem signal quality (RSRP/RSRQ) and cell info, so you see both sensor data and link health.
Configurable Per Channel
Enable only the channels you use. Optional moisture depends on hardware, with runtime toggles per channel. One platform supports many configurations without separate product SKUs.
Measurands
Tank level, flow, temperature and environmental measurands
OTS connects the physical signals condition and process monitoring pages target: level, flow, temperature, humidity and runtime context over cellular links.
Tank and level monitoring
Remote tank level and fill monitoring for utilities, chemicals and mobile assets using cellular sensors without on-site Wi-Fi.
Temperature and cold-chain
Multi-point temperature trails for refrigeration, cold-chain and remote temperature monitoring with audit-friendly payloads.
Flow and process context
4-20 mA and digital interfaces for pressure, flow and process variables that feed open gateways and your CMMS.
Open SDK
Programmable wireless sensor architecture with an open SDK
OTS provides an open-source Cat-M sensor architecture with root-level control over device code. Teams can implement custom payload optimization protocols in C/C++ using standard open-source toolchains.
Root-level firmware access
Maintain full control of device logic end to end. The firmware is open and extensible, with no opaque proprietary behavior and no lock-in on the code path.
Standard open toolchains
Build with the C and C++ toolchains your team already uses. No proprietary IDE or licensed compiler is required, only reproducible open-source builds.
Custom payload protocols
Define your own payload structure (JSON or binary), sampling cadence, and uplink triggers to optimize bytes-on-air for your tariff and battery budget.
Power profile
Ultra-low-power telemetry and battery lifecycle
Power efficiency is critical in field deployments. Deep sleep modes and cellular power-saving features extend a single battery across years of autonomous operation.
< 5 µA
5 to 10 yr
eDRX + PSM
eDRX and PSM
Extended Discontinuous Reception (eDRX) and Power Saving Mode (PSM) keep the modem asleep between uplinks while staying reachable on your schedule.
Deep sleep benchmarks
Sub-5 µA deep-sleep current draw means the energy budget is dominated by your reporting interval, not idle overhead.
Li-SOCl2 battery integration
Lithium-thionyl chloride (Li-SOCl2) cells deliver 5 to 10 years of field life in low-duty configurations, and they are field-replaceable.
Industrial enclosure and external sensor support
A rugged, field-serviceable platform with internal telemetry and open interfaces for external payloads.
Internal sensors
- Temperature
- On-board temperature at ±0.2 °C, plus multi-point external probes.
- Humidity
- Relative humidity at ±2% RH for indoor air and process control.
- Accelerometer
- 3-axis accelerometer for shock, tilt, and motion-triggered uplinks.
- Battery level
- Coulomb-counted battery state reported alongside every payload.
External interfaces
- I2C / SPI
- Digital sensor buses for third-party and custom sensing elements.
- Analog 4-20 mA
- Industrial current-loop inputs for pressure, level, and flow transmitters.
- 1-Wire
- Digital temperature and ID sensors over long cable runs.
- Modbus
- Modbus interface for meters and industrial controllers.
Enclosure and environment
- Ingress protection
- IP67 ruggedized enclosure for dust and water immersion.
- Operating range
- -40 °C to +85 °C for outdoor and unconditioned spaces.
- Cellular
- LTE-M and NB-IoT with 2G fallback; eSIM and nano-SIM options.
- Serviceability
- Field-replaceable battery and flexible mounting for retrofit.
Sensor Types
Sensors You Can Connect
The OTS platform supports a range of environmental and condition sensors. Connect the right mix for your application, from temperature and humidity to vibration and air quality.
Temperature
Multi-point temperature for cold chain, curing, and environmental monitoring
Humidity
Relative humidity and dew point for indoor air quality and process control
Moisture
Soil, concrete, or material moisture for leak detection and curing
Vibration
Vibration and shock for equipment health and predictive maintenance
Air quality
Particulates, CO₂, and gases for indoor and outdoor air monitoring
And more
Custom interfaces and expansion for additional sensor types
Why OTS
Industrial Sensors for Demanding Field Conditions
Ultra-Long Battery Life
Up to 10 years of autonomous operation with replaceable Li-SOCl2 batteries and smart power management.
Global Connectivity
LTE-M and NB-IoT with 2G fallback ensures coverage anywhere in the world, even in deep indoor environments.
Industrial Ruggedness
IP67-rated enclosures with wide temperature range (-40°C to +85°C) for harsh operating environments.
Deployment-Ready Configuration
Pre-configured sensors ship ready to connect. Direct cloud connectivity removes the need for an on-site gateway.
What You Get
Industrial Hardware
- IP67-rated ruggedized enclosure
- Wide temperature range: -40°C to +85°C
- Replaceable long-life battery
- Pre-configured cellular connectivity
- Precision calibrated sensing elements
Cloud Integration
- LTE-M / NB-IoT with 2G fallback
- Configurable JSON/Binary payloads
- MQTT or HTTP(S) protocols
- Secure encrypted communications
- Device management portal included
Professional License
Your Hardware. Your Application Logic.
Customize firmware, payloads, and power profiles while keeping your IP secure. The Pro License turns standard OTS devices into white-label hardware for your project.
- Customize firmware, sampling rates, and triggers for your exact use case.
- Integrate additional sensing elements across digital, analog, or bus interfaces.
- Ship solutions with customer-owned IP and white-label hardware options.
- Deploy at scale with predictable licensing and factory-priority support.
What you get
- Access to OTS SDK and Firmware API
- Dedicated engineering support channel
- Custom payload definition tools
- White-label hardware options
- Priority manufacturing slots
"The Pro License allowed us to build a proprietary concrete maturity sensor using off-the-shelf OTS hardware, reducing our development timeline by 18 months."
Applications
Industrial Monitoring Applications
One platform, many configurations. Enable only the channels required for cold chain, concrete, buildings, or agriculture.
Cold chain monitoring
Track perishable goods during transport and storage
Concrete curing
Monitor maturity and strength development in real-time
Smart buildings
Track HVAC performance and indoor air quality
Leak detection
Identify water ingress in roofs and basements
Warehousing
Ensure optimal conditions for sensitive inventory
Agriculture
Greenhouse and soil monitoring for precision farming
Frequently Asked Questions
— 01Is OTS available as a white-label sensor?
Yes. OTS is designed for white-label projects. You can ship it under your own brand (housing, labeling, packaging) and integrate it into your product offering while we provide the underlying hardware platform and engineering support.
— 02Do customers get the source code?
With the Professional License, yes. We share the firmware source code and SDK so your team can own the device logic, payload formats, and integration behavior. This enables long-term maintainability, faster iteration, and customer-owned IP.
— 03What cloud and protocols are supported out of the box?
OTS supports MQTT out of the box and includes ready-to-use connectivity patterns for AWS (e.g., AWS IoT). It can also publish via HTTP(S) depending on the selected firmware profile. We provide reference payload formats and integration examples to accelerate deployment.
— 04Do I need a gateway?
No. OTS connects directly to the cloud over LTE-M or NB-IoT. There is no on-site gateway required. Data is sent directly from the device to your backend or to the Melqart device management portal.
— 05Does OTS support eSIM or nano-SIM?
Yes. OTS supports cellular provisioning with eSIM and/or a nano-SIM, depending on the hardware configuration. We can deliver units pre-provisioned, or align provisioning with your preferred connectivity provider and country coverage.
— 06What sensors are supported by default, and what can be added?
Out of the box, OTS supports temperature (including multi-point), humidity, and optional moisture depending on the hardware variant. Through the available interfaces (1-Wire, I²C, and analog), additional sensors such as vibration, air quality, or custom probes can be integrated as part of a tailored configuration.
— 07How long does the battery last in real deployments?
Battery life depends on reporting interval, enabled channels, signal conditions, and operating temperature. With long intervals and optimized power profiles, deployments can reach multi-year operation, up to 10 years in low-duty configurations.
— 08Can we customize payloads, sampling rates, and triggers?
Yes. You can customize payload structure (JSON or binary), sampling and transmit intervals, thresholds, alerts, and channel enablement. With the Professional License, your team can implement domain logic directly in firmware while keeping full ownership of the resulting IP.
— 09How does device identity and security work?
Each device supports secure provisioning and encrypted communication. For AWS deployments, standard certificate-based authentication patterns are supported. We can align the device identity model with your security requirements and your chosen backend architecture.
— 10What do we receive when starting a white-label project?
You receive a reference firmware baseline, SDK and source access (Professional License), integration examples (MQTT/AWS), and an engineering enablement package covering provisioning, payload formats, and recommended power profiles, so you can move from pilot to scale with minimal friction.
Monitor Your Assets Today.
Our engineering team will help you choose the right OTS sensor and get started with an evaluation kit.