Product overview

Door & Window Sensor SA-7903

SigmaCasa · SKU: SA-7903

Wireless contact sensor for doors, windows, cabinets and drawers, with a replaceable lithium battery.

Key specifications

Product type

Contact / opening

Connectivity

Matter over Thread

Market / region

Taiwan

Power battery

ER14250,3.6 V,1/2AA primary lithium

Battery

Size: 1/2 AA; Type: ER14250; Voltage V: 3.6; Chemistry: Lithium; Replaceable: Yes; Rechargeable: No

Magnet Dimensions Mm

33; 15; 17

Main Unit Dimensions Mm

62.6; 21.4; 26.8

Operating Temperature C

Max: 40; Min: 0

Price & availability

Orderable · stock not confirmedAvailability refers to the listed seller, region and variant at the stated check time. Destination delivery and allocated stock are not confirmed.

Availability checked Nov 3, 2026 · Taiwan · SKU SA-7903