Biometric switch operating temp. 23 Degrees to 122 degrees f mounting hole size 22 mm housing material polyamide operation type momentary connection 2m 3 wire cable nema rating 12 ip rating ip20 ip65 voltage 24v dc width 2.73 In height 2.13 In depth 1.53 In max. Current 200 ma circuit type pnp response time less than 1 second storage capacity 200 records standards csa rohs ul listed