VIZHON

Temperature, watched around the clock

VIZHON is a WiFi temperature sensor with cloud monitoring and alerts. Keep an eye on cold rooms, freezers and fridges, or screw the stainless steel probe straight into fermenters, tanks and process lines. If anything runs too warm or too cold, you know straight away.

  • Cold rooms
  • Freezers
  • Fridges
  • Fermenters
  • Process lines
Create an accountSee pricing
VIZHON Basic: black sensor unit with a USB power cable and a small stainless steel probe on a black cableVIZHON Brew: black sensor unit with a USB power cable and a stainless steel probe with a half-inch threaded fitting on a blue cable

Choose your sensor

  • VIZHON Basic: black sensor unit with a USB power cable and a small stainless steel probe on a black cable

    VIZHON Basic

    R795

    Fridges, freezers and cold rooms

    Probe
    Waterproof stainless steel probe on a cable
    Power
    5 V USB, cable included
  • VIZHON Brew: black sensor unit with a USB power cable and a stainless steel probe with a half-inch threaded fitting on a blue cable

    VIZHON Brew

    R895

    Fermenters, brite tanks and lines

    Probe
    304 stainless steel, 6 × 100 mm, ½‑inch PT thread
    Power
    5 V USB, cable included
  • VIZHON Industrial: black sensor unit with an M12 power cable and a stainless steel probe with a half-inch threaded fitting on a blue cable

    Coming soon

    VIZHON Industrial

    R1 260

    Still in development; the price is what we expect it to be. Email us to hear when it's ready.

    Plants and process lines with a 24 V supply

    Probe
    304 stainless steel, 6 × 100 mm, ½‑inch PT thread
    Power
    24 V DC through an A-coded M12 connector

Every model

Sensor
Digital temperature sensor
Measuring range
−40 °C to +120 °C, from deep freezers to hot liquor
Accuracy
±0.5 °C from −10 °C to +85 °C
Enclosure
IP54, protected against dust and splashes
Connection
2.4 GHz WiFi
Probe
Detachable, with a screw-on connector

Your dashboard

Log in from your phone or computer to see every sensor, its history and its alerts. These are real readings from two of our test sensors.

Dashboard showing two sensors, Fermenter 1 at 24.8 °C marked Too warm and Fermenter 2 at 24.4 °C marked Reporting, each with its last report time and WiFi signal
Every sensor at a glance, with its live temperature and whether it needs attention.
Temperature history chart for the last 24 hours, with the too-warm limit of 25 °C drawn as a dashed red line
History for the last 24 hours, 7 days or 30 days, with your alert limits marked.
Alert settings: too warm above 25 °C, too cold below 2 °C, fast change, offline and probe fault, each with an SMS option
Set your limits, and choose which alerts also come by SMS.

How it works

  1. Step 1

    Fit the probe

    Put the probe in your cold room, freezer or fridge, or screw it into a ½-inch port on a fermenter, tank or line. Power the unit from USB (24 V on the Industrial) and connect it to your WiFi from your phone. No app to install.

  2. Step 2

    We watch it for you

    The sensor reports temperature and WiFi signal to the VIZHON cloud around the clock.

  3. Step 3

    Get alerted in time

    Set your own high and low limits for each sensor. If a cold room warms up, a freezer fails, a ferment runs warm or a sensor goes quiet, you get an email or SMS straight away.

In a fridge or freezer

Only the probe goes inside. Its thin cable runs out under the door seal, so the door still closes properly, and the sensor unit stays outside. A closed fridge is a metal box that blocks WiFi, so the unit needs to be outside to reach your router.

Hang the probe in the middle of the fridge, away from the back wall and the door, for a reading that shows how cold your stock really is.

A VIZHON Basic set up in a fridgeCut-away drawing of a fridge. The temperature probe hangs inside, in the middle of the fridge. Its thin cable runs out under the door seal to the sensor unit, which sits outside the fridge and is powered by a USB charger in a wall socket.FreezerFridgeThe probe hangsin the middleof the fridgeThe thin cable runs outunder the door seal, sothe door still closesThe sensor unit staysoutside, where its WiFican reach your routerUSB power

What you get

  • Live temperature and signal strength on your dashboard
  • Your own high and low temperature limits for each sensor
  • Alert if a sensor stops reporting, not only when it's too warm
  • Email alerts included; SMS alerts from prepaid credits
  • Temperature history for every sensor, so you can see what happened
  • As many sensors as you need, across all your sites, on one dashboard

Pricing

You buy the sensor once and keep it. A monitoring subscription is required for each sensor. All prices are in South African rand.

Sensor

From R795

Once-off, per sensor · compare models

Monthly monitoring

R95

Per sensor, per month

Annual monitoring

R950

Per sensor, per year: two months free

Email alerts are included. SMS alerts use prepaid credits at R1 per SMS. Courier delivery is charged at The Courier Guy's rate for your address. See our delivery, refund and cancellation policies.