Recessed Steel Door Reed Switch, Flush Mount, 19mm White‍‌​​‌‌‌‌​‌‌‌‌​‌​‌​‍

Technical specifications
Electrical
Current (standby/alarm): 10 mA at 12 VDC
Voltage (operating): 9 VDC to 15 VDC

Environmental
Pet Immunity: One or two pets up to 45 kg (100 lb) or numerous rodents.
Relative Humidity: 0 to 95%, non-condensing
For UL Listed product installations, 0 to 85%, non-condensing
Temperature (operating): -30°C to +55°C (-20°F to +130°F)
For UL Listed product installations, 0°C to +49°C (+32°F to +120°F)

Mechanical
Color: white
Dimensions: 105 mm x 61 mm x 44 mm
(4.2 in. x 2.4 in. x 1.7 in.)
Material: High-impact ABS plastic

Radio Frequency
Interference (RFI) Immunity
No alarm or setup on critical frequencies in the range from 150 kHz to 2 GHz at field strengths less than 30 V/m.

Outputs
Relay: Solid state, supervised, Form A normally-closed (NC) contacts rated for ≤100 mA, 25 VDC, 2.5 W, <20 Ω closed
Tamper: Normally-closed (NC) contacts (with cover on) rated for ≤100 mA, 25 VDC, 2.5 W
Connect tamper circuit to 24-hour protection circuit