The Teltonika RUT955 is a versatile, feature‑rich LTE router offering dual‑SIM failover, integrated I/O and GPS that makes it a practical, budget‑friendly hub for telemetry expansion modules in industrial sites. It offers a better price‑to‑feature ratio than enterprise‑grade options and simpler configuration than open gateway projects, but it is less rugged than the MultiTech IP67 base station and lacks the managed service ecosystem of Sierra Wireless.
I/O-packed maestro
Dual-SIM guardian
I/O-packed maestro
Dual-SIM guardian
Review Summary
"Feature-rich and stable LTE router with numerous I/O options and strong community support; users value reliability and value for money though some mention power draw and terse documentation."
Remote reboot hero
Full‑featured LTE router with dual SIM, Wi‑Fi and multiple I/O for telemetry expansion.
Remote reboot hero
Full‑featured LTE router with dual SIM, Wi‑Fi and multiple I/O for telemetry expansion.
Increased Safety & Security
Time-Saving Convenience
Skill Development & Mastery
The Teltonika RUT955 is a versatile, feature‑rich LTE router offering dual‑SIM failover, integrated I/O and GPS that makes it a practical, budget‑friendly hub for telemetry expansion modules in industrial sites. It offers a better price‑to‑feature ratio than enterprise‑grade options and simpler configuration than open gateway projects, but it is less rugged than the MultiTech IP67 base station and lacks the managed service ecosystem of Sierra Wireless.
I/O-packed maestro
Dual-SIM guardian
Remote reboot hero
Full‑featured LTE router with dual SIM, Wi‑Fi and multiple I/O for telemetry expansion.
Robust routing, firewall, VPN and advanced security suitable for industrial networks.
I/O-packed maestro
Dual-SIM guardian
Remote reboot hero
Full‑featured LTE router with dual SIM, Wi‑Fi and multiple I/O for telemetry expansion.
Robust routing, firewall, VPN and advanced security suitable for industrial networks.
$300-450 USD
The ESP32-S3-DevKitC-1 delivers best-in-class on-device compute and WiFi/BLE connectivity at a very competitive price, making it the top choice for custom telemetry expansion modules that demand raw performance, low BOM cost, and optional ML acceleration. Compared with cloud-first boards like the Particle or plug-in WisBlock modules, the ESP32-S3 offers greater hardware control and cost efficiency but requires more firmware and integration effort.
AI-capable core
Dual-core performance
AI-capable core
Dual-core performance
Review Summary
"Users praise its strong performance, rich peripheral support and excellent value for money, with minor complaints about inconsistent documentation and occasional toolchain/setup complexity."
GPIO playground
ESP32‑S3 MCU offering Wi‑Fi 802.11 b/g/n and Bluetooth 5 with ML/AI acceleration cores
GPIO playground
ESP32‑S3 MCU offering Wi‑Fi 802.11 b/g/n and Bluetooth 5 with ML/AI acceleration cores
Skill Development & Mastery
Recreational Enjoyment
Self-Improvement & Personal Growth
The ESP32-S3-DevKitC-1 delivers best-in-class on-device compute and WiFi/BLE connectivity at a very competitive price, making it the top choice for custom telemetry expansion modules that demand raw performance, low BOM cost, and optional ML acceleration. Compared with cloud-first boards like the Particle or plug-in WisBlock modules, the ESP32-S3 offers greater hardware control and cost efficiency but requires more firmware and integration effort.
AI-capable core
Dual-core performance
GPIO playground
ESP32‑S3 MCU offering Wi‑Fi 802.11 b/g/n and Bluetooth 5 with ML/AI acceleration cores
USB‑native connectivity and a rich set of I/O (SPI, I2C, UART, ADC) for diverse sensors
AI-capable core
Dual-core performance
GPIO playground
ESP32‑S3 MCU offering Wi‑Fi 802.11 b/g/n and Bluetooth 5 with ML/AI acceleration cores
USB‑native connectivity and a rich set of I/O (SPI, I2C, UART, ADC) for diverse sensors
$15-40 USD
Sierra Wireless HL7812 is a market-leading cellular modem module optimized for reliable LTE-M/NB-IoT connectivity and broad global carrier certifications, making it a strong choice for production-scale cloud-connected devices that require carrier-grade stability. Compared with lower-cost modules like the Quectel BG96 or cloud-first hardware like the Blues Notecard, the HL7812 trades some simplicity for proven certification, predictable cellular performance, and mature vendor support that reduce deployment and roaming risks.
Certified cellular muscle
Low-power ninja
Certified cellular muscle
Low-power ninja
Review Summary
"The Sierra Wireless HL7812 is viewed as a reliable, power-efficient LTE Cat-M/NB module with strong carrier certifications, though reviewers note occasional firmware/documentation gaps and some integration quirks."
Field-proven steadiness
LTE Cat-M1 and NB-IoT support with power-saving features (eDRX, PSM) optimized for battery-powered IoT devices.
Field-proven steadiness
LTE Cat-M1 and NB-IoT support with power-saving features (eDRX, PSM) optimized for battery-powered IoT devices.
Time-Saving Convenience
Increased Safety & Security
Sierra Wireless HL7812 is a market-leading cellular modem module optimized for reliable LTE-M/NB-IoT connectivity and broad global carrier certifications, making it a strong choice for production-scale cloud-connected devices that require carrier-grade stability. Compared with lower-cost modules like the Quectel BG96 or cloud-first hardware like the Blues Notecard, the HL7812 trades some simplicity for proven certification, predictable cellular performance, and mature vendor support that reduce deployment and roaming risks.
Certified cellular muscle
Low-power ninja
Field-proven steadiness
LTE Cat-M1 and NB-IoT support with power-saving features (eDRX, PSM) optimized for battery-powered IoT devices.
Compact LGA form factor with standard AT command interface and integrated TCP/IP stack for easy integration.
Certified cellular muscle
Low-power ninja
Field-proven steadiness
LTE Cat-M1 and NB-IoT support with power-saving features (eDRX, PSM) optimized for battery-powered IoT devices.
Compact LGA form factor with standard AT command interface and integrated TCP/IP stack for easy integration.
$45-90 USD
OnPage focuses on secure, audit-ready alerting tailored for healthcare and regulated industries, providing HIPAA-compliant push, SMS and voice integrations that prioritize guaranteed delivery and traceable acknowledgment. Its vertical specialization often results in simpler pricing and faster deployment for clinical alerting use cases compared with generalist platforms, and its emphasis on compliance and secure message trails makes it uniquely suitable where regulatory risk is a deciding factor. For Alert Notification Communication Modules in sensitive environments, OnPage pairs targeted functionality with compliance assurances that general-purpose platforms do not provide out of the box.
Secure clinical paging
Delivery & audit trail
Secure clinical paging
Delivery & audit trail
Review Summary
"OnPage is appreciated in healthcare and critical-alert environments for HIPAA-compliant, reliable urgent notifications and audit capabilities; some customers find the interface dated but effective."
Beats pagers by miles
Focused on secure, HIPAA-compliant escalation for clinical and critical alerts.
Beats pagers by miles
Focused on secure, HIPAA-compliant escalation for clinical and critical alerts.
Increased Safety & Security
Time-Saving Convenience
OnPage focuses on secure, audit-ready alerting tailored for healthcare and regulated industries, providing HIPAA-compliant push, SMS and voice integrations that prioritize guaranteed delivery and traceable acknowledgment. Its vertical specialization often results in simpler pricing and faster deployment for clinical alerting use cases compared with generalist platforms, and its emphasis on compliance and secure message trails makes it uniquely suitable where regulatory risk is a deciding factor. For Alert Notification Communication Modules in sensitive environments, OnPage pairs targeted functionality with compliance assurances that general-purpose platforms do not provide out of the box.
Secure clinical paging
Delivery & audit trail
Beats pagers by miles
Focused on secure, HIPAA-compliant escalation for clinical and critical alerts.
Persistent alerting with acknowledgement, escalation and delivery guarantees.
Secure clinical paging
Delivery & audit trail
Beats pagers by miles
Focused on secure, HIPAA-compliant escalation for clinical and critical alerts.
Persistent alerting with acknowledgement, escalation and delivery guarantees.
$60-720 USD
Campbell Scientific CDM-A116
The CDM-A116 extension module is positioned as a best-in-class remote expansion option because it delivers high-channel-density, low-noise analog inputs and proven field ruggedness that integrate seamlessly with Campbell Scientific dataloggers. Compared with the other products on this list it offers superior long-term support and deterministic timing for complex environmental monitoring networks, making it technically advantaged for precision field deployments while often costing less over the product lifecycle than high-end industrial systems.
Expanded channels — lab superhero
Rugged build — field tough
Expanded channels — lab superhero
Rugged build — field tough
Review Summary
"Users report the Campbell Scientific CDM-A116 is extremely reliable and rugged in remote deployments, with strong documentation and technical support; common criticisms are its high cost and limited future-proofing as cellular standards evolve. Overall it's regarded as a dependable communications expansion for Campbell loggers once configured correctly."
Precision timing — sync-savvy
Provides a compact, field-proven option to add many analog/digital channels to Campbell Scientific systems.
Precision timing — sync-savvy
Provides a compact, field-proven option to add many analog/digital channels to Campbell Scientific systems.
Time-Saving Convenience
Skill Development & Mastery
Increased Safety & Security
The CDM-A116 extension module is positioned as a best-in-class remote expansion option because it delivers high-channel-density, low-noise analog inputs and proven field ruggedness that integrate seamlessly with Campbell Scientific dataloggers. Compared with the other products on this list it offers superior long-term support and deterministic timing for complex environmental monitoring networks, making it technically advantaged for precision field deployments while often costing less over the product lifecycle than high-end industrial systems.
Expanded channels — lab superhero
Rugged build — field tough
Precision timing — sync-savvy
Provides a compact, field-proven option to add many analog/digital channels to Campbell Scientific systems.
Designed for seamless integration with Campbell dataloggers and supports precise sensor excitation and low-noise measurements.
Expanded channels — lab superhero
Rugged build — field tough
Precision timing — sync-savvy
Provides a compact, field-proven option to add many analog/digital channels to Campbell Scientific systems.
Designed for seamless integration with Campbell dataloggers and supports precise sensor excitation and low-noise measurements.
$900-1,400 USD
Cradlepoint COR IBR900 is the market leader thanks to enterprise-grade cellular routing, cloud-managed failover and integrated power-fail handling that make it straightforward to pair with battery backup modules for mission-critical sites. While it typically carries higher subscription and acquisition costs than the other units, its advanced security, scalable management and predictable support reduce operational risk and total cost of ownership for large, distributed battery-backed deployments.
Carrier-agnostic backup
Cloud-managed simplicity
Carrier-agnostic backup
Cloud-managed simplicity
Review Summary
"Users praise the COR IBR900 for reliable cellular connectivity, robust industrial hardware and enterprise-grade management, though many find it relatively expensive and report occasional firmware quirks."
Tank-grade ruggedness
5G and LTE multi-carrier support for high-throughput, low-latency primary or failover links
Tank-grade ruggedness
5G and LTE multi-carrier support for high-throughput, low-latency primary or failover links
Increased Safety & Security
Time-Saving Convenience
Skill Development & Mastery
Cradlepoint COR IBR900 is the market leader thanks to enterprise-grade cellular routing, cloud-managed failover and integrated power-fail handling that make it straightforward to pair with battery backup modules for mission-critical sites. While it typically carries higher subscription and acquisition costs than the other units, its advanced security, scalable management and predictable support reduce operational risk and total cost of ownership for large, distributed battery-backed deployments.
Carrier-agnostic backup
Cloud-managed simplicity
Tank-grade ruggedness
5G and LTE multi-carrier support for high-throughput, low-latency primary or failover links
Integrates with external battery/UPS solutions to maintain connectivity during power loss
Carrier-agnostic backup
Cloud-managed simplicity
Tank-grade ruggedness
5G and LTE multi-carrier support for high-throughput, low-latency primary or failover links
Integrates with external battery/UPS solutions to maintain connectivity during power loss
$800-1,200 USD