Watchman® Sonic Plus Advance

Watchman® Sonic Plus Advance

Wireless measurement of liquids

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€170.56 inc VAT
(€138.67 ex VAT)
Product Description

Product parameters and features:

  • audible measurement
  • remote measurement
  • no wiring required
  • suitable for all tank models
  • weatherproof transmitter
  • easy to install
  • leak monitoring for bunded tanks / sump trays
  • can be upgraded with remote monitoring via a free app


Tank depth measurement:

Minimum depth: 0.5 m

Maximum depth: 3 m


Bar level indicator, each bar corresponds to 10% of the tank height. An early warning indicator (flashing tank fill indicator) at a certain height above the bottom of the tank (see item 11). Flashing red tank empty LED at a certain height above the bottom of the tank. (see point 11). Meets the requirements of EN 60335.

Communication range:

200 m under normal 'line visibility' conditions.

The actual operating range of the device may be influenced by external factors that reduce the range of the transmitter or the sensitivity of the receiver.

Power supply:

Receiver: 230 V, 50–60 Hz +/- 10%.

Transmitter: 3 volt lithium cell.

Battery life:

Up to 3 years (depending on the height of the tank and the frequency of filling / emptying it).

Wireless connectivity:

433 MHz. FM modulated signal transmission. EN 300-220


Receiver: 50 x 55 x 35 mm (without antenna).

Transmitter: 70 x 93 mm.

Max. And min. operating temperature (transmitter):

Working temperature range from –10 to + 50ºC.

Working humidity: 0-100%. Hermetically sealed device made of UV stabilized PP3317 material.

Tank Mounting Hole Size:

32 mm opening

Connector with male BSP 2 "thread

Product Specification

  • Weight: 38.000kg



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