# Temperature controller Voltcraft ETC-902, NTC/PTC input, -30 to 50°C range, relay output 10 A

**URL:** https://aio.lv/en/product--voltcraft-etc-902--1501260
**Data updated:** 2026-02-12 09:42 (EET)
**Category:** Control Systems
**Manufacturer:** Voltcraft
**Manufacturer code:** ETC-902
**EAN:** 4016139004785
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.49 €
**Prices and availability valid until:** 2026-07-08 23:59
**Price without VAT (21%):** 29.33 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--voltcraft-etc-902--1501260

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Voltcraft ETC-902 is a compact temperature controller with support for NTC and PTC sensor inputs, measuring from -30 to 50°C. It provides a relay output rated at 10 A for controlling heating or cooling devices. Suitable for thermostatic regulation in small HVAC, refrigeration, incubation or laboratory setups where stable temperature control and a simple relay interface are needed.

## Long description

Voltcraft ETC-902 is a compact temperature controller designed for simple thermostatic regulation in small HVAC, refrigeration, incubation and laboratory setups. It accepts either NTC or PTC sensor inputs and monitors temperature in the range from -30 to 50°C. The controller provides a single relay output rated at 10 A for direct control of heaters, coolers or other switching devices. Its straightforward interface and robust relay output make it suitable where stable temperature control and a basic on/off control method are required.
Advantages
The device supports both NTC and PTC sensor types, enabling flexible sensor selection to match existing probes or application requirements. With a measuring range of -30 to 50°C it covers common refrigeration, incubation and environmental control needs. The integrated relay output is rated for 10 A, allowing direct switching of many small heating and cooling loads without additional contactors. Compact housing and a simple control concept reduce installation complexity and make the unit easy to integrate into confined setups.
Suitable for
 Small refrigeration systems and cold cabinets
 Incubators and hatching equipment
 Basic laboratory temperature control
 Heating or cooling control in small HVAC or process applications
 DIY environmental chambers and prototypes
Key specifications
 Sensor input: NTC and PTC compatible
 Temperature measurement range: -30 to 50°C
 Control output: relay, single pole, rated for 10 A
 Control type: on/off thermostatic control via relay switching
 Typical applications: heating and cooling device switching, environmental regulation
How to use
Mount the temperature controller in a protected location where the display and controls are accessible while keeping the sensor probe positioned at the representative point for the measured environment. Connect the chosen NTC or PTC sensor to the appropriate input terminals following the manufacturer's wiring arrangement. Wire the heating or cooling device to the relay output, respecting the 10 A current limit and local electrical safety regulations. Configure setpoint and hysteresis (if available) according to the required temperature stability to avoid frequent switching. Perform an initial test cycle to verify correct sensor operation and switching behavior before continuous use.
Usage recommendations
Use sensors of appropriate type (NTC or PTC) and rating for the intended environment; avoid placing the probe near direct heat sources or drafts. Ensure the switched load does not exceed the relay's 10 A rating and add an external contactor or relay if higher currents or inductive loads must be controlled. For precise control or faster response, pair the controller with a properly sized sensor and allow sufficient settling time after setpoint adjustments.

## FAQ

### How much does the Temperature controller Voltcraft ETC-902 cost, and is it available for purchase?

The price is 35.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 406 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 09.07.2026 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. 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 Voltcraft 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 Voltcraft 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/1501260/47513067_large.webp