All four new TDR transmitters feature two-wire 4.20 mA HART 7 communication with an optional second output (current or relay) and a real-time clock for event logging. They have been developed SIL 2/3-compliant according to IEC 61508 for safety-related systems and come with various Ex approvals. Common features also include a quick coupling system as well as compact and remote converter versions made of aluminum or stainless steel. All devices are rated IP66, IP68, and NEMA 4X/6P. For more information, visit www.us.krohne.com.