This reference lists the specifications for all five DOOR Smart Home Sensors, drawn from the 2025 spec sheets. Use it to confirm battery type, environmental limits, detection method, and dimensions before ordering or installing. All five connect through the DOOR Hub over the DOOR wireless network — none connect to WiFi directly.
Shared specifications
These values are identical across all five sensors:
Specification
Value
Connectivity
Through the DOOR Hub (no direct WiFi)
Wireless range
>300 m (open-air)
Frequency (US version)
LoRa 910.3 MHz / 923.3 MHz
Operating humidity
≤95% RH, non-condensing (Leak Detector: ≤100%)
Storage temperature
41 °F – 86 °F (5 °C – 30 °C)
Power and detection by sensor
Sensor
Batteries
Rated battery life
Detection method
Range / threshold
Open and Close Monitor
2 × AAA alkaline (3 V)
5 years
Magnetic reed switch
Gap detection 18–22 mm (~¾")
Motion Detector
2 × AAA alkaline (3 V)
5 years
PIR infrared
Up to 20 ft (6 m); 360° below, 120° side
Leak Detector
2 × AAA alkaline (3 V)
5 years
Electrode resistance (top + bottom)
Water depth >0.01"
Leak Lasso
2 × AAA alkaline (3 V)
5 years
Water-sensing rope (resistance)
3.93 ft (1.2 m) cable; +11 ft (3.5 m) optional extension
Temperature and Humidity Sensor
2 × AA lithium (3 V)
Up to ~18 months
Ambient temp + humidity
−22 °F to 140 °F; 0–100% RH
Battery life note: the Temperature and Humidity Sensor runs for up to ~18 months on its 2 × AA lithium cells, depending on settings and conditions. Use ~18 months as the practical replacement interval.
Dimensions
Sensor
Dimensions (imperial)
Dimensions (metric)
Open and Close Monitor — sensor
3.27" × 1.22" × 0.61"
83 × 31 × 15.5 mm
Open and Close Monitor — magnet
2.48" × 0.45" × 0.53"
63 × 11.5 × 13.5 mm
Motion Detector
2.44" dia × 1.10" (plate 1.97" dia)
62.0 × 27.8 mm (plate 50 mm)
Leak Detector
2.44" × 2.44" × 0.93"
62 × 62 × 23.5 mm
Leak Lasso
2.44" × 2.44" × 0.86"
62 × 62 × 22 mm
Temperature and Humidity Sensor
3.54" × 2.95" × 1.06"
90 × 75 × 27 mm
Environmental and ingress protection
Sensor
Operating temperature
Ingress rating
Notes
Open and Close Monitor
−4 °F to 122 °F (optimal 32–104 °F)
—
Indoor only
Motion Detector
−4 °F to 122 °F (optimal 32–122 °F)
—
Indoor; lithium AAA extends low-temp range to −4 °F
Leak Detector
−4 °F to 122 °F (optimal 32–122 °F)
IP68 (submersible 1 m / 30 min)
Not for permanent submersion
Leak Lasso
−4 °F to 122 °F (optimal 32–122 °F)
—
Indoor; sounder 95–105 dB @ 10 cm
Temperature and Humidity Sensor
−22 °F to 140 °F
IP63
Dust + light rain; shaded/semi-exposed outdoor OK
Accuracy — Temperature and Humidity Sensor
Measurement
Typical accuracy
Temperature (32 °F – 140 °F)
±0.36 °F (±0.2 °C)
Temperature (−4 °F – 32 °F)
±0.72 °F (±0.4 °C)
Temperature (−22 °F – −4 °F)
±0.9 °F (±0.5 °C)
Humidity (10% – 90%)
±2%
Humidity (0–10% / 90–100%)
±3%
Display resolution is 0.1 °F and 0.1%. The sensor can be calibrated ±9 °F and ±10% in the DOOR App.