diff --git a/firmware/controllers/algo/engine.cpp b/firmware/controllers/algo/engine.cpp
index 4daf1a9c98..d25750a1c5 100644
--- a/firmware/controllers/algo/engine.cpp
+++ b/firmware/controllers/algo/engine.cpp
@@ -406,10 +406,7 @@ todo: move to shutdown_controller.cpp
 }
 
 bool Engine::isInMainRelayBench() {
-	if (mainRelayBenchStartNt == 0) {
-		return false;
-	}
-	return (getTimeNowNt() - mainRelayBenchStartNt) < NT_PER_SECOND;
+	return mainRelayBenchTimer.hasElapsedSec(1);
 }
 
 bool Engine::isInShutdownMode() const {
diff --git a/firmware/controllers/algo/engine.h b/firmware/controllers/algo/engine.h
index 763962106e..8492543003 100644
--- a/firmware/controllers/algo/engine.h
+++ b/firmware/controllers/algo/engine.h
@@ -303,7 +303,7 @@ public:
 
 
 	SensorsState sensors;
-	efitick_t mainRelayBenchStartNt;
+	Timer mainRelayBenchTimer;
 
 
 	void preCalculate();
diff --git a/firmware/controllers/bench_test.cpp b/firmware/controllers/bench_test.cpp
index f38efd063b..4018df3507 100644
--- a/firmware/controllers/bench_test.cpp
+++ b/firmware/controllers/bench_test.cpp
@@ -245,9 +245,9 @@ void acRelayBench(void) {
 	pinbench(1000.0, 100.0, 1, enginePins.acRelay);
 }
 
-static void mainRelayBench(void) {
+static void mainRelayBench() {
 	// main relay is usually "ON" via FSIO thus bench testing that one is pretty unusual
-	engine->mainRelayBenchStartNt = getTimeNowNt();
+	engine->mainRelayBenchTimer.reset();
 }
 
 static void hpfpValveBench(void) {