Rotronic humidity, temperature, CO2 measurement
HF320- 2- or 2 x 2-wire, <28 VDC, common supply V+, 4…20 mA
HF331- 3/4-wire (15…40 VDC / 12…28 VAC, 0…20 mA)
HF332- 3/4-wire (15…40 VDC / 12…28 VAC, 4…20 mA)
HF333- 3/4-wire (5…40 VDC / 5…28 VAC, 0…1 V)
HF334- 3/4-wire (10…40 VDC / 8…28 VAC, 0…5 V)
HF335- 3/4-wire (15…40 VDC / 12…28 VAC, 0…10 V)
HF420 - 2- or 2 x 2-wire, <10...28 VDC, common V+, 4…20 mA (Only display without backlight possible)
HF431 - 3/4-wire, 15…40 VDC / 12…28 VAC, 0…20 mA
HF432 - 3/4-wire, 15…40 VDC / 12…28 VAC, 4…20 mA
HF433 - 3/4-wire, 5…40 VDC / 5…28 VAC, 0…1 V
HF434 - 3/4-wire, 10…40 VDC / 8…28 VAC, 0…5 V
HF435 - 3/4-wire, 15…40 VDC / 12…28 VAC, 0…10 V
HF520 - 2- or 2 x 2-wire, <10...28 VDC, common V+, 4…20 mA (Only display without backlight possible)
HF531 - 3/4-wire, 15…40 VDC / 12…28 VAC, 0…20 mA
HF532 - 3/4-wire, 15…40 VDC / 12…28 VAC, 4…20 mA
HF533 - 3/4-wire, 5…40 VDC / 5…28 VAC, 0…1 V
HF534 - 3/4-wire, 10…40 VDC / 8…28 VAC, 0…5 V
HF535 - 3/4-wire, 15…40 VDC / 12…28 VAC, 0…10 V
HF624 - 2- or 2 x 2-wire, <10...28 VDC
HF631 - 3/4-wire, 15…40 VDC / 12…28 VAC, 0…20 mA
HF632 - 3/4-wire, 15…40 VDC / 12…28 VAC, 4…20 mA
HF633 - 3/4-wire, 5…40 VDC / 5…28 VAC, 0…1 V
HF634 - 3/4-wire, 10…40 VDC / 8…28 VAC, 0…5 V