Navien NaviLink User Manual page 41

Environment
Operating: 32 ℉–104 ℉ (0 ℃–40 ℃)
Temperature
Storage: -40 ℉–158 ℉ (-40 ℃–70 ℃)
Operating: 10 %–90 % RH, Non-condensing
Humidity
Storage: 5 %–90 % RH, Non-condensing
Physical specifications
Dimensions 6.9 in X 1.17 in X 4.3 in
(W X H X D) (175.8 mm X 29.9 mm X 109.8 mm)
Weight Approx. 7.76 oz (220 g)
Smartphone
Android OS 4.0 or later
OS version
iOS 8.0 or later (iPhone 5S or later)
41