WIRELESS THERMOCOUPLE TRANSMITTER
Battery-Powered, Self-Contained Temperature Monitoring Solution


SM-TC1
HIGHLIGHTS
- Supports type K thermocouple sensors
- Single temperature input, 24-bit ADC
- Up to a 10-year battery life
- Self-contained, rugged design
- Installs in minutes
- IP66, -40 °C to 70 °C (-40 ˚F to 158 ˚F)
- 900/915 MHz range: Up to 1.4 Miles / 2.3 km with Clear Line of Sight
- 2.4 GHz range: Up to 1.9 Miles / 3.1 km with Clear Line of Sight
- 868 MHz range: Up to 1.5 Miles / 2.4 km with Clear Line of Sight
- Secure AES encryption
- Class I, Division 1 (Zone 0)
- Intrinsically Safe


Supports K Type Thermocouple Sensors
The OleumTech® OTC Wireless Thermocouple Transmitter supports third-party type K thermocouple sensors for monitoring extreme heat process conditions including flares, kilns, and gas turbines. The SM-TC1 features 24-bit analog to digital conversion (ADC) and provides reliable method of measuring temperature. The SM-TC1 provides a junction box and wiring terminal board for accepting a third-party thermocouple sensor. The temperature output can be reported in Fahrenheit, Celsius, or both. This ultra-low-power transmitter is powered by a replaceable battery pack that provides up to a 10-year life.
Reliable, Scalable and Safe
The field-proven wireless transmitter communicates with an assigned wireless gateway within the OTC Wireless Sensor and I/O Network, creating a highly scalable network, accommodating virtually any I/O requirement.
The OleumTech wireless transmitter is certified for use in Class I, Division 1 (Zone 0) hazardous locations. It is Intrinsically Safe, designed not to cause a spark, and can be serviced without being removed from a process.
TECHNICAL SPECIFICATIONS
WIRELESS COMMUNICATIONS | |
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Radio Band | ∙ ISM Band (License-Free) |
900 MHz / 915 MHz | ∙ FHSS, FSK, AES Encryption 256-bit (900 MHz), 128-bit (915 MHz) |
2.4 GHz | ∙ DSSS, AES Encryption 128-bit |
868 MHz | ∙ LBT-AFA, AES Encryption 128-bit |
Bit Rate | ∙ 900/915 MHz: 9600 bps / 115.2 kbps; 2.4 GHz: 250 kbps; 868 MHz: 80 kpbs |
Output Power (Max) | ∙ 900/915 MHz: 10 mW; 2.4 GHz: 63 mW; 868 MHz: 25mW |
Receiving Sensitivity | ∙ 900/915 MHz: -110 dBm @ 9600 bps, -100 dBm @ 115.2 kbps |
∙ 2.4 GHz: -101 dBm @ 250 kbps; 868 MHz: -106 dBm @ 80 kbps | |
RF Range | ∙ 900/915 MHz: Up to 7500 Feet / 1.4 Miles / 2.3 km with Clear Line of Sight |
∙ 2.4 GHz: Up to 1.9 Miles / 3.1 km with Clear Line of Sight | |
∙ 868 MHz: Up to 1.5 Miles / 2.4 km with Clear Line of Sight |
HARDWARE FEATURES | |
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Device Functionality | ∙ Temperature Sensing Wireless Transmitter Using a Thermocouple Sensor |
Embedded Controller | ∙ Ultra-Low Power RISC Microcontroller with Internal FLASH (Field Upgradeable) |
Configuration | ∙ Standard RS232 Serial / BreeZ® Software for PC |
ADCResolution | ∙ 24-bit High-Resolution Delta-Sigma ADC |
Thermocouple Input | ∙ Supports Type K (Temperature Range Depends on Actual Sensor) |
Accuracy | ∙ Accuracy Depends on Thermocouple Sensor |
Power Source | ∙ Self-Contained, Internal 3.6 Vdc Lithium Battery |
Internal Battery Life | ∙ Over 10 Years, Based on User Defined Reporting Intervals |
Device Diagnostics | ∙ Health Tags: Battery Voltage, Received Signal Strength Indication (RSSI), RF Refresh, RF Timeout, Error Codes |
CERTIFICATIONS & COMPLIANCE | |
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EMC/EMI | ∙ FCC Part 15 (USA), IC ICES-003 (Canada), ACMA (Australia) |
∙ AS/NZS CISPR 32 (Australia), EN55032 & EN55024 (EU) | |
Safety | ∙ Class I, Division 1, Groups A, B, C, D T3C; Ex ia IIC T3 |
∙ Class I, Zone 0; AEx ia IIC T3 | |
∙ ATEX: Sira 13ATEX2142X; Ex ia IIC T3 Ga; II 1 G | |
∙ IECEx: SIR 13.0054X; Ex ia IIC T3 Ga |
GENERAL SPECIFICATIONS | |
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Operating Conditions | ∙ Ambient Temperature (Class I, Division 1 / Zone 0): -40 °C to 70 °C (-40 °F to 158 °F) |
∙ Ambient Temperature (Non-Hazardous Applications): -40 °C to 80 °C (-40 °F to 176 °F) | |
∙ Humidity: 0 to 99 %, Non-Condensing | |
Warranty | ∙ 2-Year Parts and Labor |
Country of Origin | ∙ USA |
ORDERING INFORMATION | |
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Model Numbers | ∙ SM5000-TC1 (900), SM5010-TC1 (915), SM5400-TC1 (2.4), SM5020-TC1 (868) |
Wirelessly Connects To | ∙ OTC Wireless Gateway |
Configuration Cable | ∙ SX1000-CC2, 20-ft All-in-One Configuration Cable |
Replacement Battery | ∙ Use OleumTech SX1000-BP3 Only |
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