Usage: Multifunctional Theory: Counter Model Number: B2E-2R-220 Digital Timer Certification: CE Origin: Mainland China Front Panel Dimension: DIN 48mm(W) x 48mm(L) Power Supply Voltage: AC 100-240V 50/60Hz Time Range: 0.01s - 99h99m with twin time set value, individual Up or Down Mode, Output for A, B Period Character (PV): 4-digit 9.9mm height Red LED display Character (SV): 4-digit 8mm height Green LED display Contact Output: AC250V 3A (Resistive Load), A: NO/NC, B: NO Relay Mechanical Life: 10,000,000 operations Relay Electrical Life: 10,000,000 operations Accuracy: 1.1% 0.05s Control Signals: >=5ms (Reset, Gate) Control/Input Type: Contact / No-voltage input (NPN) / Voltage input (PNP) External Power: DC12V / 50mA (Max.) for sensor use only Reset Method: Power on / External / Manual Cutout Size: 45x45mm Mounting Method: Flush mounting with screw terminals Weight: Approx. 130g Environmental Conditions: -10C to 55C (no icing or condensation) Storage Temperature: -25C to 65C (no icing or condensation) Storage Humidity: 35-85% RH