£52.80

About as cheap as it gets — within 5% of the all-time low it hit 1 month ago.

£53 today · all-time low £53 (Aug 2026) · usually the usual

PNI Air quality and carbon dioxide (CO2) sensor PNI SafeHouse HS291 with Wi-Fi, control from the Tuya Smart application, CO2 monitoring, temperature, humidity, date and time display, settings menu

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 50 days · 50 data points (no recent data)

Historical
Generating forecast…
£57.53 £52.22 £53.38 £54.54 £55.69 £56.85 £58.01 23 July 2026 04 August 2026 16 August 2026 28 August 2026 10 September 2026
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White, PNI-HS291

Price data last checked 41 day(s) ago - refreshing...

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Price Distribution

Price distribution over 50 days • 4 price levels

Days at Price
Current Price
18 days · current 6 days 12 days 14 days 0 5 9 14 18 £53 £55 £56 £57 Days at Price

Price Analysis

Most common price: £53 (18 days, 36.0%)

Price range: £53 - £57

Price levels: 4 different prices over 50 days

Key Features

Complete Air Quality Assessment: In addition to CO2 values, this monitor also captures temperature and air humidity and provides a comprehensive image of room air quality.

Smart Insights: Use the Tuya Smart App to view historical data, set custom thresholds, and receive timely alerts.

Date and time display: The built-in clock displays the date and time, and the intuitive menu allows for easy customization.

Safety alerts: Audible and visual alerts keep you informed of air quality deviations.

Product Specifications
Brand
PNI
Model
PNI-HS291
Colour
White
Size
90 X 90 X 25
ASIN
B0D96894HH
Category
DIY & Tools > Safety & Security > Safety Sensors & Detectors > CO2 Detectors
Domain
Amazon UK
Listed Since
11 September 2024

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