Ajax Wireless Security Transmitter "MultiTransmitter", Black, NC,NO, EOL contact type; 18 zones//https://ajax.systems/products/multitransmitter/Number of alarm/tamper zones: 18Supported detector contact types: NO, NC (without R), EOL (NC with R), EOL (NO with R)Resistance of the EOL resistor: 1 k? to 7.5 k?Alarm signals processing mode: Pulsed or bistableMain power supply: 110–255 V, 50/60 HzBackup power: 12 V DCSupported battery type: Battery with 4 or 7 A?h capacity (not included), dimensions 150 ? 64 ? 94 mmDetector power supply: 12 V DC, up to 1 A for all detector power supply outputsProtection against dismantling: TamperRadio signal frequency band: 868.0–868.6 MHz or 868.7–869.2 MHz, depending on the sales regionCompatibility: Operates with all Ajax hubs, and range extendersMaximum radio signal power: Up to 7.29 mW (25 mW limit)Radio signal range: Up to 2,000 m in the line of sightOperating temperature range: From -10°С to +40°СOperating humidity: Up to 75%Dimensions: 196 ? 238 ? 100 mmWeight: 805 g