Intermatic RC939 Handheld 3 Channel Radio Transmitter ESP LXD Spring loaded cover rises ½" to Spring loaded cover rises ½" to discharge excess water in system 60 Hz Mounting Options DIN Rail Mechanical Movement Synchronous Warranty Period 1 Year limited Wiring Option Combination 1 4" spade and screw clamp Category Hour MeterWeb Digits Coloring (Hours) White on Black Digits Coloring (Tenths) Yellow on Black Environmental Rating IP20 Hour Meter Material Plastic RoHS Certification Yes Operating Temperature Max (°C) 72 Operating Temperature Max (°F) 160 Operating Temperature Min (°C) 40 Operating Temperature Min (°F) 40 Product Depth (in) 2 8 Unit Carton Height (in) 3 Range 100 ft