WIRELESS HIGH LEVEL SWITCH TRANSMITTER – SIDE MOUNT
Battery-Powered Self-Contained Level Detection Solution


SM-HLS
HIGHLIGHTS
- Side-mounting high level detection system
- High level switch included
- Wiring plug eliminates wiring hassle
- Up to a 10-year battery life
- Self-contained, rugged design
- Installs in minutes
- Transmitter: IP66, -40 °C to 70 °C (-40 ˚F to 158 ˚F)
- Level Switch: -40 °C to 120 °C (-40 ˚F to 248 ˚F)
426.7 PSI - 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






Side-Mount High Level Switch Included
The OleumTech® Wireless High Level Switch Transmitter is a side tank mounting solution for detecting high liquid level conditions. It can also report transition counts. The SM-HLS includes the side mountable switch and float with a welded 2-inch NPT adapter, making it a complete ready-to-deploy solution. The device utilizes an on-delay exception reporting method allowing users to set the debounce filter ranging from 20 ms to 2000 ms to help remove undesired state reporting due to signal noise or hysteresis. As a safety measure, regardless of state change, this device reports to the wireless gateway at a user-defined interval. 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 | ∙ High Level Sensing Wireless Transmitter (Side Mount) |
Embedded Controller | ∙ Ultra-Low Power RISC Microcontroller with Internal FLASH (Field Upgradeable) |
Configuration | ∙ Standard RS232 Serial / BreeZ® Software for PC |
Input | ∙ Single Actuation Point |
Power Source | ∙ Self-Contained, Internal 3.6 Vdc Lithium Battery |
Internal Battery Life | ∙ Up to 10 Years, Based on User Defined Reporting Intervals |
Device Diagnostics | ∙ Health Tags: Battery Voltage, Received Signal Strength Indication (RSSI), RF Refresh, RF Timeout |
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-HLS (900), SM5010-HLS (915), SM5400-HLS (2.4), SM5020-HLS (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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