Inovonics EN1235DF EchoStream Double-Button Fixed Position Hold-up Transmitter, 902-928 MHz

Double-button fixed position hold-up transmitter with rugged design to help prevent false alarms. Features back tamper for secure alarm signaling and LED indicator that flashes with each transmission for visual confirmation of operation. Operates on 902-928 MHz frequency hopping spread spectrum with 3-minute check-in intervals. Powered by Panasonic CR2 battery. Compact dimensions: 3.0" x 1.6" x 0.72". UL listed for reliability and safety compliance. Includes transmitter and battery. Ideal for emergency signaling and hold-up alarm applications requiring dependable, tamper-resistant operation.