Gas Alarms
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Showing 31–33 of 33 results
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0563 3164 |
| Detection Sensitivity | <3 g/year (per EN 14624:2012) |
| Detectable Refrigerants | R134a, R22, R404A, H₂, CFCs, HCFCs, HFCs (NH₃ requires optional probe) |
| Operating Temperature | -20 °C to +50 °C |
| Relative Humidity Range | 20–80 % RH |
| Response Time | <1 s |
| Warm-up Time | <50 s |
| Weight | 348 g |
| Dimensions (L×W×H) | 190 × 57 × 42 mm |
| Gooseneck Length | 370 mm |
| Battery | Integrated NiMH pack (6 cells), ~6 h continuous operation |
| Storage Temperature | -25 °C to +70 °C |
| Alarm Type | Visual (LED color shift: green → red) and audible (adjustable tone) |
| Compliance | EN 14624:2012 |
| Brand | ZOLIX |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | DPE12 |
| Price | USD 2,100 (FOB Beijing) |
| Operating Temperature Range | −20 °C to +55 °C |
| Spectral Range | 1.5–12 µm |
| Active Area | 2 mm × 2 mm |
| Responsivity | ≥80,000 V/W (at 10 Hz, λ = 10.6 µm) |
| Detectivity (D*) | ≥3 × 10⁸ cm·√Hz/W (at 10 Hz, λ = 10.6 µm) |
| Shunt Resistance (R<sub>d</sub>) | 0.1–0.3 MΩ |
| Recommended Modulation Frequency | 10 Hz |
| Frequency Response Bandwidth | 5–100 Hz |
| Output Signal Type | Voltage |
| Bias Voltage | 3 V DC |
| Rise Time | <100 ms (typ.) |
| Brand | ZOLIX |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | ZLDM-126T |
| Price Range | USD 1,400 – 2,800 |
| Technology | Non-Dispersive Infrared (NDIR) |
| Measurement Principle | Absorption Spectroscopy at 4.26 µm |
| Output Signal | Analog (0–5 V / 4–20 mA) and Digital (UART/I²C) |
| Operating Temperature | −10 °C to +50 °C |
| Humidity Range | 0–95 % RH (non-condensing) |
| Accuracy | ±(30 ppm + 3 % of reading) |
| Resolution | 1 ppm |
| Response Time (T90) | < 120 s |
| Zero Drift | < 2 ppm/month |
| Span Drift | < 2 %/year |
| Lifetime | > 15 years |
| Power Supply | 5 VDC ±5 % |
| Current Consumption | < 35 mA |
| Dimensions | 32 × 22 × 12 mm |
| Weight | ~8 g |
| Compliance | RoHS, CE (EMC/LVD), ISO 8573-1 Class 4 (for internal gas path) |