Showing all 4 results Default sortingSort by popularitySort by average ratingSort by latestSort by price: low to highSort by price: high to low View ProductSP1000 IAQ Ambient Air Direct CO2 Meter Smart Probe £215.00Out of Stock View Product1008a Handheld IAQ Monitor (CO2 & Temperature) £440.00 View Product1010a Handheld IAQ Monitor (CO2, Temperature& Humidity) £650.00 View Product597C1 Digital Hygrometer/Psychrometer £165.00