TR-3704, Ultra Radio Voltage Data Logger, 0 to 25 VDC

Item number: TR-3704

  • measuring range: standard voltage 0 -25V
  • 200m typical range (line of sight)
  • high accuracy and reading resolution
  • 12 month battery life
  • low battery monitor
  • user-replaceable battery
  • Category: Gemini Tinytag Ultra Radio Loggers

    264,18 €

    including 19% VAT.

    Exp. shipping time: ca. 2-3 weeks

    : 7 workdays



    TR-3704, Ultra Radio Voltage Data Logger, 0 to 25 VDC

    The TR-3704 monitors voltage from 0 to 25V DC and can be connected to a variety of sensors enabling the logging of a wide range of processes.
    The logger's design makes it ideal for discreet indoor monitoring in a variety of buildings.
    This logger is a component part of the Tinytag Radio data logging system, which automatically sends data from multiple loggers via a receiver for viewing on a PC.

    This unit is supplied with an input lead (CAB-3239).
    Alternatively you can buy our 5-pin connector plug (ACS-9703) to connect to your own probe/sensor.

    This logger is part of a system that requires a receiver and Tinytag Explorer software (ACSR-3030-PK) as optional accessories.

    The logger can also be powered from the mains using an optional plug-in power supply (ACS-0005).
    If the power supply is interrupted, the logger?s batteries will power the logger and continue recording until the supply is restored.

    Please note: this product is only for sale in the EU.

    Please note: This article is only one component of the Tinytag Radio Logger System.
    For proper operation minimum one radio data logger and one Tinytag radio receiver with accompanying software are necessary!


    • Low (standard) voltage monitoring
    • Robust data network
    • Easy to install
    • Alarm e-mails
    • 200m typical range (line of sight)
    • High accuracy and reading resolution
    • 12 month battery life
    • Low battery monitor
    • User-replaceable battery

    Popular applications:
    For custom sensor monitoring, including:

    • Pressure
    • Flow Rate
    • Light

    Technical data:
    Reading range: 0 to 25V DC
    Logger accuracy: ±0.2% of reading ±0.02V
    Logger resolution: better than 1mV
    Maximum input: 26V
    Input impedance: 1MOhm
    Radio frequency: 869.88MHz (EU version, AUS versions upon request )
    Radio power: <5mW
    Radio range: 200m, typical (line of sight).
    Radio licence: no licence required (SRD)
    Offline memory capacity: 2 weeks typical, at a 10 minute logging interval
    Memory type: non volatile
    Logging interval: 2 minutes to 10 days
    Alarms: 2 programmable latching alarms (upper and lower) per channel
    Alarm delay: 1 second to 10 days
    Low battery monitor: software warning
    Battery type: Duracell Procell MN1500 LR6 AA 1.5V (supplied)
    Battery life: typically 12 months
    IP Rating: IP20
    Operational Range: -20°C to +55°C
    Case Dimensions: 121 x 79 x 24mm³ (L x W x D, excluding antenna)
    Weight: 180g

    Optional accessories:
                  Power supply for Ultra Radio dataloggers
    ACSR-3030-PK    Pack: Ultra Radio receiver, software, 5m USB cable, power supply
    ACS-9703             5-pin plug for user's own voltage connection


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