Our wireless open/closed sensors provide information on the status of doors, windows, cabinets, etc. Know if a building or area is being accessed when it should not be, or if a door or window has been left open. Alerts can be setup to notify a user by SMS text, email or voice call if a door or window has been opened or left open.
| Contact Rating | SPST, gold under -plating with Deactivated Rhodium outer-plating | 
| Switch Cycles | 50 million | 
| Operation Gap | Up to 3/4 inch | 
| Wire Leads | 22 gauge / 13.5 in length (± 1.5 in) | 
| Magnet | Alnico | 
| Magnet Case Construction | Weatherproof, high-impact ABS plastic with self-adhesive backing | 
| Magnet Temperature Range | -15°F to 160°F (-25°C to 70°C) | 
| Weight | 3.8 oz. | 
| Security | Encrypt-RF® (256-bit key exchange and AES-128 CTR) | 
| Battery Type | 2 Replaceable AA 1.5 V Batteries | 
| Dimension | 4.375 in x 2.470 in x 1.12 in | 
| Supply Voltage | 2.0 – 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply) | 
| Battery Life | At 1 hour heartbeat setting, included AA batteries will typically last 6-8 Years. ** | 
| Max Operating Temperature Using AA Alkaline | -18°C to 55°C (0°F to 130°F) | 
| Max Operating Temperature Using AA Lithium | -40°C to 60°C (-40°F to 140°F) | 
| Optimal Battery Operating Temperature | +10°C to +50°C (+50°F to +122°F) | 
| Enclosure Material | ABS | 
| Operating Frequency | 900 MHz Operating Frequency | 
| Certifications | Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1) Complies with Industry Canada standards. (IC: 9794A-G2SC1) | 
| Device Range | Device Range Up to 1,200 ft. non-line-of-sight, wireless device range* | 
| Security | Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC) |