Can i use a rangefinder while bow hunting big game in Idaho?

Yes, you can use a rangefinder while bow hunting big game in Idaho.  It cannot be attached to the bow. The rule states; No person shall take big game animals with any electronic or tritium-powered device attached to, or incorporated into, an arrow, bolt, crossbow, or bow (except nonmagnifying scopes containing battery powered or tritium lighted reticles may be usedby disabled archery permit holders).