["Highlights Based on Zigbee 3.0 protocol High precision and sensitive electrochemical sensor Low battery alarm Easy battery replacement Plug and play Award-winning design Specification Operating voltage: DC3V (CR123A lithium battery) Battery life: 3 years Static current: ≤20uA Alarm current: ≤60mA Noise level: ≥85dB/1m Alarm sensitivity: 30ppm 120mins alarm; 50ppm 60-90mins alarm; 100ppm 10-40mins Alarm Networks: Zigbee Wireless Networking Distance: ≥70m (in open area) Working Environment: -10? ~ +50? Humidity at work: ≤95%RH Dimensions: 60×60×49.2mm", "Based on the Zigbee 3.0 protocol", "Highly precise and sensitive electrochemical sensor", "Low battery alarm", "Easy battery change", "Plug and play", "Award-winning design", "Operating voltage: DC3V (CR123A lithium battery)", "Battery life: 3 years", "Static current: ≤20uA", "Alarm current: ≤60mA", "Noise level: ≥85dB/1m", "Alarm sensitivity: 30ppm 120mins alarm; 50ppm 60-90mins alarm; 100ppm 10-40mins alarm", "Networking: Zigbee", "Wireless networking distance: ≥70m (in open area)", "Working environment: -10? ~ +50?", "Humidity at work: ≤95%RH", "Dimensions: 60×60×49.2mm"]