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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)

£215.00 exc. VAT £258.00 inc. VAT £318.00 inc. VAT
  • Accuracy ± 5 ppm
  • Backlit 2000-ct display
  • Calibration Function
  • Dual Mode Operation
  • Range 0-1000 ppm
  • Audible & Visual Indication
  • FreeDelivery
  • 30DayMoneyBack
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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.

*Important Calibration Information:

Please note that due to additional stringent procedures required to calibrate natural gas equipment, calibration on this instrument may unfortunately incur a longer turnaround.
Whilst we are acutely aware that this is not always convenient, we kindly request that you allow approximately 5-7 additional working days for purchases including calibration.
We will endeavor to always improve upon this but feel it is important to let our customers know before the purchase is made.

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

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 PM 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 your delivery.

Bank/Public Holidays

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 subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Temporarily revised June 2020)

Please note that regrettably, we have had to realign our delivery service options to those available from our carriers.
During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time.
We have taken the decision to temporarily limit our services rather than let our customers down.
We hope you will understand our position on this and we apologise unreservedly for the inconvenience we know this will cause.
We look forward to restoring our full delivery service schedule just as soon as we are able.

Standard FREE 1-2 Day Courier Delivery – UK Mainland only - Zones A & B

Included in the price for all orders over £75.00 (exc vat). Sent using express courier, delivered within 1-2 working days from the date of your order, subject to availability.


Next Day Anytime Delivery (Excluding Saturday & Sunday) – UK Mainland only - Zones A & B
Sent by express courier, delivered next day (excluding weekends) from the date of your order, subject to availability.


Orders must be placed before 3:00pm for a qualifying next day delivery and a telephone number supplied, subject to availability.

New Postage Map Sept 2018>

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 (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 2 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International Delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at


All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable E&OA