ALTA Wireless Hydrogen Sulfide H2S Gas Sensor, AA Battery Powered, 900MHZ

This safety sensor tracks the presence of H2S gas, which is toxic and flammable. Use to safeguard workers in oil/gas production, wastewater treatment, utilities & other hazardous areas Monnit MNS2-9-W2-GS-H2S Features1,200+ foot range12+ year battery life80+ wireless sensorsBank-level AES securityUp in 15 easy setupGlobal ready (900, 920, 868 & 433 MHz) H2S Sensor SpecificationsMaximum Overload: 50 PPMMeasuring Principle: Electrochemical reaction of H2SResolution: ± 0.1 PPMResponse Time: (t-90) < 40 seconds typical at 20°CStabilization Time: < 120 secondsLong Term Drift – Zero: Zero Signal = ± 2 PPM / monthLong Term Drift – Span: Output Signal = ± 2% of reading per monthMaximum Zero Shift: < 1 ppm equivalent (-20°C to +40°C)RH Operating Range: 15 to 85% RHMeasuring Range: 0-50 PPMVariation SpecificationsAccuracy: +/- 0.3 ppm + 2% of current readingWeight: 3.6 oz. (102 g)ALTA AA SpecificationsBattery Type: 2 Replaceable AA 1.5 V BatteriesDimension: 4.375 in x 2.470 in x