Condition: Refurbished

This Narda NardaAlert S3 2270/01 mainframe is paired with the 2271/31 broadband electric field sensor and has been seller refurbished and calibrated in June 2025. Multiple units are held in stock and may show minor cosmetic variation between units.

Typically includes:
• Narda 2270/01 NardaAlert S3 mainframe
• Narda 2271/31 electric field sensor
• Calibration certificate (June 2025)

The Narda NardaAlert S3 (model 2270) is a personal safety monitor designed for workers operating in environments with potentially hazardous electromagnetic field (EMF) levels. It provides continuous, real-time broadband measurement of electric and magnetic field strengths and alerts the user via audible and visual alarms when configurable exposure thresholds are approached or exceeded.

The system consists of a compact mainframe unit worn on the body and interchangeable isotropic sensors covering different frequency ranges. The 2271/31 sensor is an electric field probe covering broadband RF frequencies, making it suitable for use around broadcast transmitters, radar installations, industrial RF heating equipment, and telecommunications infrastructure.

Key features include configurable alarm levels aligned to major international safety standards including ICNIRP guidelines and IEEE C95.1, making it straightforward to deploy in compliance-driven environments. The NardaAlert S3 can store measurement data for later review and is designed for rugged everyday use by RF safety officers, engineers, and site workers.

Model: Narda NardaAlert S3 2270/01 with 2271/31 sensor
Measurement type: Broadband isotropic electric field
Sensor: 2271/31 broadband E-field probe
Alarm type: Audible and visual
Standards supported: ICNIRP, IEEE C95.1
Data logging: Yes
Form factor: Wearable/portable personal monitor
Display: LCD with bar graph and numerical readout
Power: Rechargeable battery

Please refer to the Narda Safety Test Solutions website for full technical specifications and current datasheet information.

Narda NardaAlert S3 2270 Series Datasheet (PDF): Download PDF

Narda NardaAlert S3 2270 Series User Manual (PDF): Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.