JH-Y02 Fire smoke tester smoke detector temperature, fire, electronics, smoke two-in-one test tools Product name: Smoke detector tester (single smoke) Product model: JH-Y02 Battery voltage: 8.4V 2200MAH Charger output: 8.4V 1A Smoke test: > 480 Working principle: electronic plus cigarette Detection function: single smoke test Product material: stainless steel metal head Standard length: 3.5 meters telescopic rod Product name: Automatic induction smoke temperature two-in-one tester Product model: JH-YW12 Battery voltage: 8.4V 2200MAH Charger output: 8.4V 1A Smoke test: > 480 Working principle: Electronics add cigarettes, electronic heating. Detection function: smoke temperature two-in-one dual-purpose. . Product material: stainless steel metal head Standard length: 3.5 meters (insulated telescopic rod)