Sensor type | High sensitive electrochemical type sensor, built-in auto-sampling mechanism
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NH3 range | 0..100 ppm (or equivalent 0..285.7 ppm H2S)
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NH3 tolerance limit | 200 ppm
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Repeatability / Resolution / Stability per month | < 3% of reading / 0.1 ppm / < 1% of reading/month
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Zero-point stability | +/- 0.3 ppm
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Ambient pressure | 101.3 Kpa +/- 10%
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Sensor life | 2 years, in clean air
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Working temperature | -10 .. + 50°C
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Working humidity | 15.. 90% RH
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LoRaWAN SPECIFICATION
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SP factors | SF7..SF12 (with internal Antenna 2.67 dbi)
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Battery | 02 x AA size 1.5VDC, battery not included
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RF Frequency and Power | 860..930Mhz, +14 .. +20 dBm, configurable for zones: EU868, IN865, RU864, KR920, AS923, AU915, US915
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Protocol | LoRaWAN, class A, V1.0.3
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Data sending modes | Interval time and when the alarm occurred
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Configuration | via Downlink or Offline cable (software is free)
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RF Module | complies to ETSI EN 300 220, EN 303 204 (Europe) FCC CFR47 Part15 (US), ARIB STD-T108 (Japan)
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Working temperature | -40oC..+60oC (with AA L91 Energizer)
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Case/protection grade | ABS, indoor use, do not spray water directly on the device
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Dimensions/Weight | Diameter 95mm x Height 40mm / < 250g |