The ALTA wireless Hydrogen Sulfide (H2S) sensor has a measuring Rrange of 0-50 PPM. The measuring principle is electrochemical reaction and the sensor has a resolution of ± 0.1 PPM.
Features of All ALTA Series Sensors
Frequency Hopping Spread Spectrum (FHSS).
Improved interference immunity .
Improved power management for longer battery life (8-10 years).
Encrypt-RF™ Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages).
Over-the-air updates (future proof).
Available in 915 MHz for USA Canada or 868 MHz for Europe
Free iMonnit basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email.