Inovonics EN1233S EchoStream Single-Button Necklace Pendant Transmitter, 902-928 MHz

Single-button necklace pendant transmitter with rugged, wearable design. Features easy one-touch activation with LED confirmation on every transmission. Wear around the neck or mount in a fixed location for flexible deployment. Includes neck cord and operates on Panasonic CR2 battery. Frequency hopping spread spectrum technology across 902-928 MHz band with 3-minute check-in intervals. Compact dimensions: 3.0" x 1.6" x 0.72". Ideal for personal alert and emergency signaling applications.