Wireless turnkey with a big button to facilitate the pulsation of the sign of panic route I remove 433 MHz. Supervised unit that sends from time to time transmissions to the recipient to indicate the condition of functionality and the level of battery, if a sign does not come to the recipient, the keyboard will indicate I trump it in the equipment. Supplied with a strap of neck and an anchorage for of belt. Ergonomic design resistant to the water. Warning Led of the transmission of the sign of the turnkey. Delay of 2 seconds in the activation of the sign of panic to avoid false alarms. 2 batteries supplied with lithium type CR025 of 3V. Dimensions: 57 × 32 × 13 mm.