This product is sold directly from Hubitools.
Use the promo code Diagnosedan20 to claim your 20% discount at the payment page.

Quickly and accurately test 3 categories of terminal electro-mechanical relays used on most cars
Interrogate and identify an unknown relay terminal configuration then self-configure its own internal circuitry to perform all required test functions automatically
Unit automatically indicates test results with a red and a green performance lights
Contact resistance threshold : 200 Milliohms