Mitco T400M Electronic Ignitor Tester, Solid StateNo exposure to high voltage connections, Works on all solid state oil ignitor and Riello Gas ignitors. Solid state accuracy - no misleading meter reading or interpretation. Product Specifications BRANDMitco LENGTH INCHES4-3/8 WIDTH INCHES4-3/8 HEIGHT INCHES6-1/2 PILOT TYPE-- DESCRIPTIONElectronic Ignitor Tester MANUFACTURER'S PART NUMBERT400M