Ports
1x terminal block for door sensor (EA1440/EA1441/EA1442) / capacitive leakage sensor (EA1540)
1x RJ-11 Port for temperature sensors (EA1140/EA1240/EA1340)

Measurement
• Range Temperature: –10 to +75 °C
• Humidity: 0 to 100%
• Temperature Accuracy: ±1°C (max), 10 to 40 °C; ±1.5°C (max), –10 to 10 °C, 40 to 75 °C
• Humidity Accuracy: ±7.5% RH, 30–70% RH; ±15% RH, 15–40% RH, 70–90% RH

LEDs
• LED Indicator [Solid]: EA1640 is in working mode
• [Fast Blinking (for 2 minutes)]: EA1640 receives the command "FindMe"
• [Slow Blinking (for 10 seconds)]: Over-current protection (OCP) is triggered, and the sensor(s) connected to EA1640 is going to power off
• [Slow Blinking]: Firmware upgrade of EA1640 is in progress

Environmental/Power
• Humidity (Operating & Storage): 0 – 80% RH, Non-Condensing
• Temperature (Operating / Storage): -10 to 75 °C / -20 – 70℃
• Power Consumption DC12V:0.273W:1BTU/h
• EMC Verification EMC/FCC, Class A
• Safety Verification By Request

Physical
• Dimensions (L x W x H): 4.11 x 1.41 x 0.84 in. (10.44 x 3.57 x 2.14 cm)
• Weight: 0.11 lb (0.05 kg)
• Cable Length:  1.5 m (RJ45+RJ45) round cable
• Housing: Black Polycarbonate