5G IoT Remote Temperature Monitor and SMS/Email Sender

Regular price £199.00

Tax included. Shipping calculated at checkout.

IoT-Portal Temperature Alarm

  • Up to 16 sensors per device
  • 1-Wire protocol (up to 300m)
  • Live temperature readings
  • -55C to 125C range
  • 3x analogue/digital inputs
  • 2x relay/OC outputs

Connect up to 16 Dallas DS18B20 temperature sensors to the 1-wire input bus for live temperature readings. Each sensor can have a high and low threshold temperature in order to trigger SMS and email sending and Text-to-Speech calls.


Complete Solution

The IoT Portal provides a tailored service to match the hardware giving you a low cost ready-to-go system out of the box with connectivity throughout Europe. 

  • 5G IoT & 2G UK networks
  • Vodafone, EE & O2 Included
  • Comes with SIM card
  • Works with any wired alarm
  • SMS, Emails and Text-to-Speech Calls
  • 5 year subscriptions
  • First 5 years included in price
  • £96 Renewal (not due for 5 years!)
  • Includes 20 SMS & 20 calls per month
  • Unlimited emails

Low Operating Costs

The first 5 years of service is included in the price. This includes 20 SMS and 20 calls each month (renews 1st of month). After the first 5 years it can be renewed at £96 (inc. VAT)** for another 5 years of service.

We have access to the latest NB-IoT and LTE-M networks provided by Vodafone and O2 giving connection deep into buildings and undeground long into the future.

Compared to a traditional mobile phone SIM card dialler system, iot-portal diallers are extremely good value.

Network IoT Portal* 1p Mobile GiffGaff Quicksafe
Monitored Yes No No No
Multi-network Yes No No Yes
Monthly £1.58 £2.50 £5 £5
Yearly £19 £30 £60 £60
5 Years £96 £150 £300 £300

*First 5 years included in dialer purchase price

Advanced Features

  • Text-to-Speech calls
  • DTMF tones can be played in call
  • Conference calls
  • Voice Recognition
  • Sequential or Simultaneous Calling
  • Sends SMS to all numbers at once
  • PC, Phone or App Setup
  • QR codes for initial access

Control System

The output relay and open collector output can be controlled via the Live Screen using a PC or phone. Additionally, the temperature sensors can be used to control the outputs of the device when temperature limits are exceeded. Furthermore, multiple devices can be used to control each other remotely using a secure VPN connection.

Monitored by the Portal

All iot-portal diallers are monitored by the cloud. Every 4 minutes the portal contacts the dialler to confirm it's working. If the dialler doesn't hear from the portal it automatically reboots itself. If the dialler goes missing for over an hour, an email and optional SMS message is sent to the Admin and Full Access phones and email addresses. 

Firmware updates are applied automatically by the portal when required. You can rest assured, if you keep it powered up, we'll keep it running!

Out of allowance PAYG charges (credit never expires)

Calls: £0.10 per call

SMS: £0.10 per SMS

BulkUK* Calls and SMS £0.05

Email: Free £0.00


Comes with £5 starter credit and 20 SMS/Calls for testing in addition to the 20/20 SMS and Calls.

Quick Start Guide


Application Notes Below

Call/message until cancelled: AP0106 - Repeating Calls and Messages

Allowing users to view the inputs: AP0107 - View Screen Access 

Delaying sending immediately: AP0103 - Input Event Hold

Temporarily Switching off the Dialler: AP0102 - Message and Play Pausing

Build a Monitored Remote Control System: AP0101 - Monitored Remote Control


**Renewal fee subject to RPI at 4.9% per annum