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Dwyer Instruments
Dwyer CDTV Carbon Dioxide/VOC Transmitter
Quote on request
No online payment · add lines to RFQ BOM
Dwyer CDTV: CO2 NDIR + VOC MEMS; 0–2000/5000 ppm; mA/V; optional relay. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
CO2 0–2000 or 0–5000 ppm; VOC 0–2000 ppm CO2-equivalent
Accuracy
CO2 ±40 ppm + 3% of reading
Output
Current 0/4–20 mA class (jumper) and voltage 0/1–5 or 0/2–10 VDC; optional SPST relay 2 A @ 30 VDC
Supply
16–35 VDC / 19–28 VAC; average 2 W, peak 3.75 W
Protection
Duct mount NEMA 4X (IP66) for housing; wall mount IP20
Ambient temperature
32 to 122 °F (0 to 50 °C)
Fits air-quality ventilation control where you need a Dwyer CDTV—single-beam dual-wavelength NDIR CO2 plus MEMS metal-oxide VOC transmitter with 0–2000 or 0–5000 ppm CO2, VOC 0–2000 ppm CO2-equivalent, and current/voltage outputs with optional SPST relay.
Key advantages
- Sensors — NDIR CO2 + MEMS VOC
- CO2 — 0–2000 or 0–5000 ppm
- VOC — 0–2000 ppm CO2-equivalent
- Outputs — 0/4–20 mA and 0/1–5 or 0/2–10 VDC
- Power — Average about 2 W; peak 3.75 W
Typical applications
- Demand-controlled ventilation.
- IAQ VOC + CO2.
- Office / classroom air quality.
Selection guide
- CO2 range
- Relay option
- Wall vs duct
Common mistakes
- VOC cross-sensitivities ignored.
- Wrong power budget.
- Poor placement near sources.
When to RFQ / what to tell us
- Range/mount/relay.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 45416 |
| Brand | Dwyer Instruments |
| Model | CDTV |
| Product type | CO2 VOC Transmitter |
| Measuring range | CO2 0–2000 or 0–5000 ppm; VOC 0–2000 ppm CO2-equivalent |
| Accuracy | CO2 ±40 ppm + 3% of reading |
| Output signal | Current 0/4–20 mA class (jumper) and voltage 0/1–5 or 0/2–10 VDC; optional SPST relay 2 A @ 30 VDC |
| Supply voltage | 16–35 VDC / 19–28 VAC; average 2 W, peak 3.75 W |
| IP rating | Duct mount NEMA 4X (IP66) for housing; wall mount IP20 |
| Ambient temperature | 32 to 122 °F (0 to 50 °C) |
| Sensor type | Single-beam dual-wavelength NDIR CO2 + MEMS metal-oxide VOC |
| Display | Per model/options on OEM datasheet |
Documents
FAQ
Q: Sensors? A: NDIR CO2 + MEMS VOC.
Q: VOC span? A: 0–2000 ppm CO2-equivalent.
Q: What should I send for a quote? A: Range/mount/relay, quantity, ship-to.
Links
- Request a Quote
- Get selection help
- Category-Detectors/)
| Parameter | Value |
|---|---|
| Measuring range | CO2 0–2000 or 0–5000 ppm; VOC 0–2000 ppm CO2-equivalent |
| Accuracy | CO2 ±40 ppm + 3% of reading |
| Output | Current 0/4–20 mA class (jumper) and voltage 0/1–5 or 0/2–10 VDC; optional SPST relay 2 A @ 30 VDC |
| Supply | 16–35 VDC / 19–28 VAC; average 2 W, peak 3.75 W |
| Protection | Duct mount NEMA 4X (IP66) for housing; wall mount IP20 |
| Ambient temperature | 32 to 122 °F (0 to 50 °C) |
| Display | Per model/options on OEM datasheet |
| Approvals | CE |
| Mounting | Wall or duct |
| Sensor type | Single-beam dual-wavelength NDIR CO2 + MEMS metal-oxide VOC |
| Notes | Series CDTV CO2/VOC transmitter for demand-control ventilation and odor control. Specs from Dwyer CDTV datasheet. |
| Response Time | CO2 2 min for 99% step; VOC 5 min |