Astro-Med TMP1 Overview Astro-Med, Inc. TMP1 Performance Characteristics: Form Factor: Module (proprietary interface/bus) Minimum Voltage: 0.5 V Maximum Voltage: 10 V Astro-Med, Inc. TMP1 Measurements/Features: Codes IRIG A,B,E,H, NASA 36 Modulated or TTL input types 50Hz to 10kHz mod carrier rang