Parameters a.Input:110-240V AC;max.0.02A; b.Output:max.9.8V DC;max.180mA; c.IP rating:IP55, in door use only; d.Ambient temperature: 0-70¡æ; e. Used only for: stainless steel tank (SUS304) of less than 300 Liter volume; f. Function Warning LED: Red = wrong, Green = good.