Compare

Compare MacSync Gas Sensor Versions

The same node and radio; the versions differ in the cell and in power. Every gas also ships as DC, MacTalk and BLE variants.

Where the models differ
Criterion	8305 · LH2S X1 battery H₂S 0–100 ppm · 19 Ah	8516 · L Odor X2 battery NH₃ + H₂S 0–100 ppm · 19 Ah	8521 · LOXGS X1 battery O₂ 0–30 % vol · 19 Ah	8526 · LC2H4 X1 battery Ethylene 0–100 ppm · 19 Ah
Where they differ
Model	MacSync-L-H2S-BS-X1	MacSync-L-Odor-BS-X2	MacSync-L-O2-BS-X2	MacSync-L-C2H4-BS-X2
Gas and range	H₂S 0–100 ppm (500 max)	NH₃ 0–100 ppm (200 max) · H₂S 0–100 ppm (500 max)	O₂ 0–30 % vol	C₂H₄ 0–100 ppm (200 max)
Resolution and repeatability	0.1 ppm · <2 %	0.5 / 0.1 ppm · <10 % / <2 %	0.1 % vol · <2 %	0.5 ppm · 1 %
Drift and life	≤0.2 ppm zero drift · 2 years	NH₃ −3 to +10 ppm · H₂S ≤0.2 ppm · 2 years	<2 % per month · ~2 years	Not stated · 3 years in air
Also available	8306 DC · 8307/8308 MacTalk · 8309 BLE	8517 DC · 8518/8519 MacTalk · 8520 BLE	8522 DC · 8523/8524 MacTalk · 8525 BLE	8527 DC · 8528/8529 MacTalk · 8530 BLE
Choose it when	Sewers, STPs, biogas, oil and gas	Odour at a fence line, composting, livestock sheds	Confined spaces, cylinder stores, inert-gas lines	Ripening rooms and produce stores

Shared by every model
Shared by every model
Power source	19 Ah Li-SOCl₂ cell
Runtime	~2 years at 5-minute reports · ~4 years at 15-minute reports · ~7+ years at hourly reports
Connectivity	LoRaWAN v1.0.4 · Class A, Class C via Maya · OTAA
Bands	IN865 · RU864 · EU868 · US915 · AU915 · KR920 · AS923
Data route	ChirpStack · The Things Network · Orbiwise · Netmore · private LNS · SCADA
Reporting	Periodic, event-based or hybrid; sampling 1 min to 24 h
Threshold alerts	Low and high limits per gas
Configuration	Maya app over BLE · downlink
Enclosure	Glass-filled nylon · IP65, IP67 optional · −40 to +80 °C · ~175 g
Mounting	Pole or wall, at the height the gas collects
Compliance	WPC compliant · RoHS