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header-product Digital thermometer Tarmo 603940 — wireless indoor/outdoor temperature measurement
11.99 €

Digital thermometer Tarmo 603940 — wireless indoor/outdoor temperature measurement

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Digital thermometer Tarmo 603940 — wireless indoor/outdoor temperature measurement

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Short description

Tarmo 603940 is a digital wireless thermometer designed for indoor and outdoor temperature measurement. The device provides remote temperature monitoring using a wireless sensor and a display unit, suitable for home, greenhouse, garage or office use. It is intended to track ambient temperature differences and help with climate control and monitoring tasks.
Available for order: 3 pcs.
Warranty: 2 Years
SKU: 11606838
Manufacturer: Tarmo
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
26.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
29.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.12 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
29.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The Tarmo digital thermometer 603940 provides a wireless solution for monitoring indoor and outdoor temperature with a compact design and clear LCD display. It measures indoor temperatures from 0 to 50 °C and outdoor temperatures from -50 to 70 °C using a wireless transmitter, and can switch between Celsius and Fahrenheit. The unit also displays time in 12- or 24-hour format.

Advantages

The device combines a compact base unit and a separate wireless transmitter for convenient placement. A clear LCD screen shows temperature and time, and the ability to change measurement units (°C/°F) makes it adaptable to user preference. Battery operation with common AAA cells allows cordless installation.

Suitable for

  • Home indoor temperature monitoring
  • Outdoor temperature measurement on balconies or in gardens
  • Monitoring temperatures in garages, sheds or other unheated spaces
  • Use where a compact, battery-powered wireless sensor is preferred

Key specifications

  • Model: Tarmo 603940
  • Brand: Tarmo
  • Indoor temperature range: 0 to 50 °C
  • Outdoor temperature range: -50 to 70 °C
  • Main unit size: 6 × 2.5 × 9 cm
  • Transmitter size: 4 × 2.3 × 9.2 cm
  • Materials: ABS plastic, LCD
  • Power: 4 × AAA 1.5 V batteries (not included)
  • Time display: 12/24-hour format

How to use

Install four AAA 1.5 V batteries in the main unit and in the wireless transmitter if required. Place the transmitter outdoors or in the location you want to monitor, keeping it within the wireless range of the main unit. Use the unit controls to select Celsius or Fahrenheit and to set the time display to 12- or 24-hour format. Read temperature and time directly from the LCD display.

Usage recommendations

For reliable outdoor readings, position the transmitter in a shaded, sheltered location away from direct sunlight and heavy precipitation. Replace batteries when the display becomes dim or readings are unstable.

Description

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Customer reviews

Customer questions

FAQ

How much does the Digital thermometer Tarmo 603940 cost, and is it available for purchase?

The price is 11.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 26.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Tarmo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Tarmo service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.