+44 203 176 3094

Envirotxt ®

  • Real-time text alerts for:
  • Power loss/restore
  • Temperature
  • Rapid temperature change

What is Envirotxt ®?

Envirotxt is a plug-in sensor that monitors power outages & temperature. Envirotxt uses a SIM card to send real time text message alerts over the GSM (mobile) network. Envirotxt is simple to install and very easy to use, just plug it in and send it a text message .. it’s as easy as that! Envirotxt will send a text message alert straight to your mobile phone as soon as there is a power cut or when the temperature gets too low/too high.

All the temperature thresholds are user-programmable so you can decide what temperature triggers a text message alert and up to 5 users can receive alerts. Envirotxt is a completely wireless remote sensor, it only requires mains power and a SIM card to operate. Envirotxt has many features including a rapid temperature rise alert (see ‘key features’ on the left) and the text message control and responses are so simple it can be used by anyone (technical or not!). Note - Envirotxt uses ‘capacitance’ to store energy to send the power loss alerts, it has no dangerous lithium batteries inside.

Envirotxt has an internal temperature sensor and also a 1m external temperature sensor for monitoring more specific areas (both temperature sensors can send alerts).

Who Uses Envirotxt ®?

Envirotxt is used in many industries and applications for example Second Homes/Holiday Homes, Hydroponics & Aquatics, Utilities, Healthcare, Marine, Pharmaceuticals and other industries. It can be used for power loss of fridges/freezers, monitoring temperature of perishables, looking after the elderly in winter, monitoring the power of any critical equipment, temperature and power monitoring of IT/Comms equipment, monitoring power and temperature in second homes or holiday homes, power loss for marine & aquatics and as temperature & power loss is so critical Envirotxt is used for new applications all the time.

Usage Examples

Marine – Boat owners use Envirotxt to alert for shore power loss and potential freezing temperatures to prevent the engine from freezing which can be extremely expensive to replace.

Pharmaceutical – Envirotxt can be used to monitor fridges/freezers so the user receives a text alert when the temperature goes too high and also if there is a power outage. Envirotxt sends the information in real time to prevent stock and financial losses.

Second Homes/Holiday Homes – Envirotxt gives peace of mind for second homes or holiday homes, power loss and temperature is extremely important for unoccupied properties e.g. for fridge/freezers, alarm systems and frozen pipes.

What SIM/network should I use? What are the approximate running costs?

Envirotxt needs a SIM card to operate, we offer M2M (machine to machine SIMs) and M2M roaming SIMs or you can use off the shelf PAYG (pay as you go SIMs). Envirotxt can only communicate by 2G text message and as it’s a mobile network dependant product we recommend you use the mobile network with the strongest signal where you intend to use Envirotxt. As Envirotxt only sends SMS’s (text messages) the running costs are extremely low, most text messages are approximately 12p-14p so £10 of credit would last over a year even if you had a several power outages a month.


1) Any network can be used except digital only networks such as the Three Network

2) If you choose to use a PAYG SIM please ensure you send a command to Envirotxt every few weeks/once a month (for example a temperature status request) because if the SIM card is not used for several months OFCOM can sometimes force the mobile operator to take the mobile number back if it’s not being used regularly.

3) None of our devices contain dangerous lithium batteries (Envirotxt uses ‘capacitance’ to store enough energy to send text alerts when the mains power is lost)

Envirotxt £82.50 ex vat

Reseller, Distributor or System Integrator? Please contact us for pricing

  • Enquire now
  • Where to buy? Or want more information?For the Envirotxt product information sheet, M2M SIM prices or for a list of authorised resellers please email info@tekview-solutions.com or call +44 203 176 3094.