Propane forklifts can emit carbon monoxide and the areas where these are used should have CO monitors in place. The Gas-Alert II is a common choice for warehouses due to the low cost and ease of use. A propane leak monitor should be considered in the tank storage area
If the forklifts are battery operated, consider hydrogen monitoring in the battery charging areas. The EC-Gold Dual is ideal for these areas because it can accept remote explosion proof or general purpose sensor inputs. Hydrogen sensors should be mounted near the ceiling.