The name defines this policy. A Level Term Life Policy means that the insurance cover remains the same or remains level the whole term. You pay the same monthly or yearly premiums too. It is up to you to choose the lump sum you want paid to your family in case you die during the term that you have taken it for and you can rest easy that they will have enough to invest and live on till they can support themselves. This policy is also good if you need a fixed sum to pay off a mortgage within a certain period of time. This will cover that and not be a burden to the family you leave behind.
All this policy needs is for you to decide how much is enough and then we can help you work backwards to see how much you need to pay towards that to maintain that amount for a certain number of years. Many insurance companies include terminal illness cover with this policy and it is done at no extra cost. This is a simple, straightforward policy that would stand the family in good stead if you were to suddenly go. The premiums are as low as £5 a month.