Like most organisations we use cookies on our site, these allow us to improve your experience on our site, provides us with measurement and analytical data, and allows us to make use of the latest digital marketing capabilities - if you want to know more about cookies and how you can control them see our cookie policy here, if you are happy for us to use cookies then please click the button opposite.
The images provided are for illustrative purposes only. Please refer to product description.

Chauvin Arnoux CA895 Carbon Monoxide Detector P01651001Z

The Chauvin Arnoux Physics Line CA895 Carbon Monoxide Detector detects and measures carbon monoxide (CO) gas.

Next Day Delivery (subject to availability)

£218.45 excluding VAT £262.14 including VAT @ 20% Regular Price: £308.40
  • Accuracy ± 5 ppm
  • Backlit 2000-ct display
  • Calibration Function
  • Dual Mode Operation
  • Range 0-1000 ppm
  • Audible & Visual Indication
  • FreeDelivery
  • 30DayMoneyBack
Required Fields
  • Description
  • Features & Specification
  • Resources
  • Delivery

Chauvin Arnoux CA895 Carbon Monoxide Detector

In a compact casing protected by a shockproof sheath, the Physics Line C.A 895 CO-gas detector detects and measures carbon monoxide.
It has 2 measurement modes “normal” for detection of a source of CO and an “average” for precise measurement.
It incorporates an audible beeping sound upon detection, a similar principle to that found on a Geiger-counter.

Key Features:

  • Hold and Maximum Functions
  • Backlit 2000-ct display
  • Protective shock-proof sheath

A closer look at Carbon Monoxide (CO).

  • Carbon monoxide is a colorless, odorless, tasteless and toxic gas produced by the incomplete combustion of carbonaceous materials: coal, paper, gasoline, diesel oil, gas, wood, etc.
  • Lighter than air, it rapidly diffuses in the atmosphere leaving no way to detect it, which gives it its dangerous character.
    Many sources of carbon monoxide can be found in the home: 
    Gas stoves 
    Fuel fired furnaces and gas water heaters, chimneys; 
    Cigarette smoking: each smoked cigarette emits 50 mg of CO 

To avoid dangerous levels of CO, it is important to maintain all combustion appliances in good working order: charcoal heaters, gas heaters, wood stoves, hot water heaters, gas stoves, open chimneys; schedule chimney-sweeping and flare conduit cleaning at least once a year. One must assure that there is adequate ventilation in rooms containing combustion insttallations (kitchen, garage, bathroom) and especially avoid blocking or crushing ventilation apertures.

CO concentration / human danger scale

De 0 to 1 ppm normal level of CO in the air
9 ppm maximum level in a room with no harm to health
50 ppm maximum level bearable for continuous exposure during 8 hours
200 ppm mild headache, nausea, dizziness
400 ppm serious headache, life threatening after 3 hours
800 ppm death after 2 hours
1,600 ppm nausea in 20 minutes, death after 1 hour
12,800 ppm death within 1 to 3 minutes

ISSWWW and Chauvin Arnoux

The Chauvin Arnoux Group of companies, incorporating the Metrix and Multimetrix brands are synonymous with design and production of the finest quality products for the electrical testing industry, covering a diverse sector of the market for over 100 years. From their awarded Digiflex current sensors, universal testers, multimeters, network and power analysers, right up to laboratory instrumentation and beyond.
ISSWWW and Chauvin Arnoux have enjoyed a close working partnership for many years and we supply many of their products to trade and industry the world over.

De 0 to 1 ppm

Chauvin Arnoux CA895 Carbon Monoxide Detector
Measurement range 0 to 1000 ppm
Accuracy ± 5 ppm ± 5 % of the reading
Measurement modes Normal for detecting the CO source
Average for an accurate measurement

Standard FREE 3-5 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £40.00 (exc vat). Sent using express courier, delivered within 3-5 working days from the date of your order, subject to availability.

Standard 1-2 Day Express Courier Delivery – UK Mainland only - Zones A & B
£4.50 for all all orders under £40.00 (exc vat). Sent by express courier, delivered within 1-2 working days from the date of your order, subject to availability.

Express Courier 1-2 Day Delivery – UK Mainland only - Zones A & B
£4.50 select at the checkout. Sent using express courier.

Next Day Delivery – UK Mainland only - Zones A & B
£8.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for next day delivery, subject to availability.

Saturday Pre 12am - UK Mainland only - Zones A & B
£15.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for Saturday delivery.

Orders must be placed before 3pm for next day delivery and a telephone number supplied, subject to availability.
Please note that predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope of our dispatch and therefore may incure additional days lead time to your order.

Orders requiring calibration. Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received late afternoon and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch, this in most cases should not add more than 24 hours to you delivery.

Delivery Surcharges
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands. 
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands.
  • Zone E - Northern Ireland
  • Zone F - Republic of Ireland

New Postage Map Sept 2018> 

International delivery

International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at

If no shipping option is available to your selected country please call us on +44 (0) 1603 406 148 to purchase your items.