1.5 inch 4 digit led clock circuit module with temp & humidity display, low power, easy operation, stable design for diverse app 1.5 inch 4 digit led clock circuit module with temp & humidity displayMaster features,Power supply: DC9~24 VRating consumption::4W;Time format: 24 Hr;Time precision: daily deviation<=3S;Measurement range: -19 degree ~ 70 degree in Celsius;Measurement error: <= 2 Celsius ...