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Michell Instruments
Michell Instruments DT722 Humidity & Temperature Transmitter
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DT722: 0–100 %rh; −40…+150 °C probe; <±2 %rh; heavy-duty. RFQ.
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Key parameters
Type
Heavy-duty duct/process RH & temperature transmitter (DT722 / Rotronic DT722)
Humidity Range
0 … 100 %rh
Temperature Range Probe
−40 … +150 °C (−40 … +302 °F)
Humidity Accuracy
< ±2 %rh (5…95 %rh) @ 25 °C
Temperature Accuracy
±0.2 °C (±0.36 °F) typical @ 25 °C
Stability
±1 %rh / year
Fits heavy-duty duct or process RH/temperature sensing where you need a Michell / Rotronic DT722—0–100 %rh with probe temperature −40 to +150 °C, humidity accuracy better than ±2 %rh (5…95 %rh) at 25 °C, and ±0.2 °C typical temperature accuracy at 25 °C.
Key advantages
- Humidity — 0…100 %rh; <±2 %rh (5…95 %rh) @ 25 °C
- Temperature — Probe −40…+150 °C; ±0.2 °C typical @ 25 °C
- Form — Heavy-duty duct/process transmitter
- Platform — DT722 / Rotronic DT722 class
- Use — Industrial RH + temperature
Typical applications
- HVAC / process duct RH.
- Dryer / oven monitoring (within probe limits).
- Industrial climate control.
Selection guide
- Probe length / mounting
- Output type
- Filter cap
Common mistakes
- Probe beyond +150 °C.
- Condensing without proper filter.
- Ignoring calibration interval.
When to RFQ / what to tell us
- Probe/mount, outputs.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 40208 |
| Brand | Michell Instruments |
| Model | DT722 Humidity & Temperature Transmitter |
| Product type | Humidity Transmitter |
| Type | Heavy-duty duct/process RH & temperature transmitter (DT722 / Rotronic DT722) |
| Humidity range | 0 … 100 %rh |
| Temperature range probe | −40 … +150 °C (−40 … +302 °F) |
| Humidity accuracy | < ±2 %rh (5…95 %rh) @ 25 °C |
| Temperature accuracy | ±0.2 °C (±0.36 °F) typical @ 25 °C |
Documents
FAQ
Q: RH accuracy? A: <±2 %rh (5…95 %rh) at 25 °C.
Q: Probe temp? A: −40 to +150 °C.
Q: What should I send for a quote? A: Probe/outputs, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Type | Heavy-duty duct/process RH & temperature transmitter (DT722 / Rotronic DT722) |
| Humidity Range | 0 … 100 %rh |
| Temperature Range Probe | −40 … +150 °C (−40 … +302 °F) |
| Humidity Accuracy | < ±2 %rh (5…95 %rh) @ 25 °C |
| Temperature Accuracy | ±0.2 °C (±0.36 °F) typical @ 25 °C |
| Stability | ±1 %rh / year |
| Outputs | Dual 4…20 mA (RH + temperature; max 500 Ω) |
| Supply | 8…32 V DC; 5-pin M12 connector |
| Ingress Protection | IP65 (NEMA 4 level) |
| Housing | Stainless steel; housing ambient −20…70 °C |
| Feature | Harsh-environment industrial humidity transmitter; PST/Michell–Rotronic line |