MacSync Gas Sensors Technical Specifications
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Technology
General Specifications
- Part Order Number
- MacSync-L-H2S-BS-X1
- Product Brand
- Macnman Technologies Pvt Ltd
Interfaces
- ElectrochemicalH₂S, NH₃ + H₂S, O₂ or C₂H₄ cell
Chips
- STM32WLE5xx (LoRaWAN MCU)

LoRaWAN Range
2KM
2KM
LoRaWAN range varies based on environmental conditions. The claimed estimates are based on our tests and may differ in real-world scenarios due to interference, obstacles, and other factors.
Cloud Platforms
MacSync Gas Sensor Dimensions

What's in the Box?
- MacSync Gas Sensor Node
- Mounting Clip
- Mounting Screws
- User Manual
- Warranty Card
- IP68 Cable Extender (optional)
(*) Accessories need to be purchased separately and are not included in the box.
H₂S Cell (LH2S X1, LODS X2)
- Range / Maximum
- 0 – 100 ppm, 500 ppm maximum detectable
- Resolution
- 0.1 ppm
- Repeatability / Stability
- < 2 % of output, < 2 % per month
- Zero Drift
- ≤ 0.2 ppm
- Sensitivity
- (0.8 ± 0.15) µA/ppm
- Expected Life / Calibration
- 2 years in air, Factory calibrated
NH₃ Cell (LODS X2)
- Range / Maximum
- 0 – 100 ppm, 200 ppm maximum detectable
- Resolution
- 0.5 ppm
- Repeatability / Stability
- < 10 % of output, < 10 % per month
- Zero Drift
- -3 to +10 ppm (-20 °C to +40 °C)
- Sensitivity
- (50 – 100) nA/ppm
- Expected Life / Calibration
- 2 years at 2 ppm NH₃, Factory calibrated
O₂ Cell (LOXGS X1)
- Range
- 0 – 30 % VOL
- Resolution
- 0.1 % VOL
- Response Time (T90)
- ≤ 15 s
- Repeatability / Stability
- < 2 % of output, < 2 % per month
- Output
- Linear
- Expected Life / Calibration
- ~2 years (typical), Factory calibrated
C₂H₄ Cell (LC2H4 X1)
- Range / Maximum
- 0 – 100 ppm, 200 ppm maximum detectable
- Resolution
- 0.5 ppm
- Repeatability
- 1 % of output
- Response Time (T90)
- < 30 s
- Sensitivity / Filter
- 0.04 ± 0.012 µA/ppm, Filters SOₓ / NOₓ and H₂S
- Cell Operating Range / Life
- -20 °C to +50 °C, 3 years in air
Wireless Transmission
- Protocols
- LoRaWAN® v1.0.4, Macnman MacTalk Protocol
- LoRaWAN® Class
- Class A (default), Class C configurable via Maya
- Antenna
- Internal high-efficiency antenna
- Frequency Bands
- IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923
- Tx Power
- 23 dBm @ 865 MHz
- Sensitivity
- -137 dBm @ 300 bps
- Activation
- OTAA
- Supported LNS
- Private LNS, ChirpStack, TTN, MQTT, Orbiwise, Netmore, Direct PLC on-prem
Power Options
- Battery (BO series)
- Li-SOCl₂ 19 Ah industrial-grade cell
- DC (PO series)
- 9–36 V DC
- Power Consumption
- ~100 µA sleep, ~50 mA transmit
- Battery Life (19 Ah, datasheet estimate)
- ~2 years at 5-minute reports, ~4 years at 15-minute reports, ~7+ years at hourly reports
Reporting Modes
- Data Reporting
- Periodic, Event-based, Hybrid
- Threshold Alerts
- Configurable low and high concentration limits per gas for event-triggered transmission
- Sampling Interval
- Configurable, 1 minute to 24 hours
- Transmission Interval
- Independent uplink interval
Device Management
- Configuration
- Macnman Maya Android App
- Local Configuration
- BLE-based via Maya
- Remote Configuration
- Over-the-air downlink commands
- Status LED
- 1 × internal multi-color LED
Physical Characteristics
- Operating Temperature (node)
- -40 °C to +80 °C
- Humidity Range
- 0% to 100% RH (non-condensing)
- Ingress Protection (node)
- IP65 standard, IP67 optional variant
- Housing
- Glass-filled nylon, matte white
- Weight
- ~175 g
- Mounting
- Pole mount, Wall mount
Security & Encryption
- Data Encryption
- AES-128 LoRaWAN® encryption
- Authentication
- OTAA device activation
- Firmware Protection
- Secure boot, Signed OTA updates
Ordering Variants
- LH2S X1 · H₂S
- 8305 battery LoRaWAN®, 8306 DC LoRaWAN®, 8307 / 8308 MacTalk, 8309 BLE
- LODS X2 · NH₃ + H₂S
- 8516 battery LoRaWAN®, 8517 DC LoRaWAN®, 8518 / 8519 MacTalk, 8520 BLE
- LOXGS X1 · O₂
- 8521 battery LoRaWAN®, 8522 DC LoRaWAN®, 8523 / 8524 MacTalk, 8525 BLE
- LC2H4 X1 · C₂H₄
- 8526 battery LoRaWAN®, 8527 DC LoRaWAN®, 8528 / 8529 MacTalk, 8530 BLE
Certifications & Compliance
- WPC
- Compliant
- RoHS
- Conforms to RoHS directive