Omron CJ1W CT021 servoDVP28SV11R2 Shape Square type Sensing method Shape Square type Sensing method Limited Reflective type Sensing distance 5 to 15 mm (White paper 50 x 50 mm) Minimum sensing object 0 Selectable battery type ( Lead acid Item CJ1W CT021 Unit type CJ series Special I O Unit General Specifications Conform to general specifications for CJ NJ series Ambient Operating Temperature 0 to 55 °C Ambient Storage Temperature 20 to 75 °C Ambient Operating Humidity 10% to 90% without condensation Internal Current Consumption 280 mA (at 5 V) Dimensions 31 × 90 × 65 mm (W × H × D) Weight 100 g Mounting Position CJ series CPU Rack or CJ series Expansion Rack *1 Units per Rack Equal to the number of slots of the Rack *2 Maximum Number of CT021