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    Inovonics EN1722 & EN1723 — Temperature/Humidity Transmitter Datasheet

    September 08, 2026 2 min read

    Specifications for the Inovonics EN1722 external temperature/humidity transmitter (with ACC710 sensor) and the EN1723 dual input temperature transmitter, for use on the EchoStream Commercial Mesh Network.

    💾 Download Original PDF
    Full text manual (for reference)

    Overview

    This datasheet covers two Inovonics EchoStream wireless temperature/humidity transmitters designed for the Inovonics Commercial Mesh Network:

    • EN1722 — external temperature/humidity transmitter, used together with the remote ACC710 sensor. Designed for harsh environments where condensation, frost, or temperature/humidity fluctuations are a concern. The EN1722 requires the ACC710 sensor to operate.
    • EN1723 — dual input temperature transmitter with both an internal onboard sensor (for monitoring ambient indoor temperature) and a user-selectable external thermistor input to match the application.

    Why Inovonics EchoStream Wireless

    • Reliability — the EchoStream 900MHz radio uses frequency hopping, spread spectrum technology to operate reliably even in cluttered wireless environments.
    • Flexibility — the self-configuring Commercial Mesh Network adapts to changing floor plans; new sensors can be added to the network as fast as they can be mounted.
    • Scalability — an intelligent repeater backbone can extend coverage to thousands of sensors across entire commercial campuses.

    EN1722 Transmitter & ACC710 Sensor Specifications

    Parameter Spec
    Temperature Range -4° to 140°F, Fahrenheit or Celsius units
    Temperature Resolution / Accuracy Typical resolution 0.018°F; typical accuracy ±0.5°F at 77°F
    Humidity Range 0–100% RH
    Humidity Resolution / Accuracy 0.03% RH resolution; typical accuracy ±2.0% RH from 10–90% RH
    Transmitter Configuration Measurement intervals of 0.5, 1, 5, or 30 seconds, or 1, 5, 15 minutes; transmission intervals of 10/30 seconds or 1, 2, 5, 10, 15, 30 minutes; Delta T threshold of 0.5, 1, 5, or 10 degrees/%RH (can be disabled)
    Battery 3.0V lithium, 1.4Ah (BAT604); typical 8 year life at 5-minute transmit interval
    Transmitter Dimensions 3.5 x 1.7 x 0.9"
    Transmitter Operating Environment -4° to 140°F, up to 90% humidity non-condensing
    ACC710 Sensor Dimensions 1.7 x 0.5 x 0.3", 60" cable length
    ACC710 Sensor Operating Environment -4° to 140°F, water resistant
    System Requirement Requires the EN4000 serial receiver and an application supporting advanced functionality

    EN1723 Dual Input Temperature Transmitter Specifications

    Parameter Spec
    Internal Measurement Range -13° to 140°F; typical accuracy 0.8°F at room temperature; Fahrenheit or Celsius
    External Measurement Transmitted as temperature or resistance; external thermistor temp range -22° to 212°F; external thermistor resistance range 100 to 250,000 ohms
    External Resistance Accuracy ±1% from 100–500 ohms, ±0.5% from 500 to 250K ohms
    Configuration Options Same measurement/transmission intervals and Delta T options as EN1722
    Battery 3.0V lithium, 1.4Ah (BAT604); typical 8 year life at 5-minute transmit interval
    Physical Characteristics 3.5 x 1.7 x 0.9"
    Operating Environment -4° to 140°F
    System Requirement Requires the EN4000 serial receiver and an application supporting advanced functionality

    Compliance

    RoHS compliant. Product performance depends on the structure and environment in which it operates; specifications subject to change without notice.

    Inovonics, 315 CTC Boulevard, Louisville, CO 80027 — Phone: 303.939.9336 — Toll-Free: 800.782.2709 — sales@inovonics.com — www.inovonics.com