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Hydro Services WLT420 Wireless Level Receiver

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The Wireless Level Transmitter’s primary purpose is to periodically measure a 4-20mA transducer, and to wirelessly transmit the measurement to a different location and reproduce the 4-20mA signal. This is done with a very low power consumption (typically 150uA while asleep) which makes it ideal for remote sites where long battery life is important. The receiver also has an LCD to display the water level, current measurement and other parameters.

Hydrological Services WLT420 Wireless Level Receiver

- Wireless, up to 1Km range
- Radio Frequency AUS/USA
- Waterproof Housing IP67
- Low Power Consumption
- Display the water level, current measurement and other

The Hydrological Services Wireless Level Transmitter WLT420 has been designed using surface mount technology to provide a very small, ultra low power and reliable wireless 4 to 20mA transmitter / receiver pair that can be used in harsh environments for extended periods.


Transmitter Inputs
4-20mA Input: 12 bit resolution: 256 samples over 1 sec
Receiver Outputs: 4-20mA Output (16 bit resolution)

Radio Frequency: US 905.5 to 912.5MHz AUS 917.5 to 924.5MHz
Transmit Power: 10mW
Range: 1km line of sight

Dimensions: 125mm x 80mm x 57mm (L x W x D)
Weight: 600 grams
Environmental: -40C to + 70C at 95% RH Non Condensing
Enclosure: Aluminium waterproof housing IP67

Ordering Information:

WLT420T- Transmitter - Status LED indicator
WLT420R -Receiver – Status LED + 8 char x 2 line LCD

WLT420R- Receiver – Scroll + Select push buttons
Connections Screw less Terminals