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Testo
Testo 316-3 Refrigerant Leak Detector
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316-3: <4 g/a; HFCs/HCFCs/CFCs; heated diode; 2×D ~16 h. RFQ qty.
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Key parameters
Sensor type
Heated diode / replaceable sensor head
Sensitivity
4 g/a (0.15 oz/a)
Detectable Refrigerants
R-22, R134a, R-404A, R-410A, R-507, R438A and all CFCs, HFCs, HCFCs
Conformities
SAE J1627, EN 14624:2012, EG 2004/108/EG
Sensor Lifetime
Approx. 80–100 h (≈1 year typical)
Operating Temperature
−18 to +50 °C
Fits HVAC/R leak hunting where you need a testo 316-3—heated-diode detector with sensitivity below 4 g/a (0.15 oz/a) for common HFCs, HCFCs and CFCs, automatic zeroing, and about 16 hours on two D cells.
Key advantages
- Sensitivity — <4 g/a (<0.15 oz/a)
- Gases — HFCs, HCFCs, CFCs including R22/R134a/R404A/R410A class
- Response — Detection <1 s; warm-up ~20 s; auto zero
- Power — 2× D; ~16 h
- Standards — EN 14624:2012; SAE J1627
Typical applications
- Refrigeration leak location.
- Heat-pump service.
- Commissioning leak checks.
Selection guide
- Spare sensor head / filters
- HI/LO sensitivity habit
- Carry case
Common mistakes
- Sensor exposure to oils/contaminants.
- Skipping warm-up.
- Using as personal safety monitor.
When to RFQ / what to tell us
- Quantity, spare sensor.
- Ship-to.
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Specs
| Spec | Value |
|---|---|
| SKU | 38490 |
| Brand | Testo |
| Model | 316-3 |
| Product type | Refrigerant Leak Detector |
| Type | Heated-diode refrigerant leak detector (testo 316-3) |
| Sensitivity | <4 g/a (<0.15 oz/a) |
| Refrigerants | HFCs, HCFCs, CFCs (e.g. R22, R134a, R404A, R410A and blends) |
| Response | Detection <1 s; warm-up ~20 s; auto zero |
| Power | 2× D alkaline; ~16 h |
| Env | −18…+50 °C; 20–80 %RH non-condensing |
| Standards | EN 14624:2012; SAE J1627 |
Documents
FAQ
Q: Sensitivity? A: Below 4 g/a (0.15 oz/a).
Q: Battery life? A: About 16 hours continuous.
Q: What should I send for a quote? A: Quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Sensor type | Heated diode / replaceable sensor head |
| Sensitivity | 4 g/a (0.15 oz/a) |
| Detectable Refrigerants | R-22, R134a, R-404A, R-410A, R-507, R438A and all CFCs, HFCs, HCFCs |
| Conformities | SAE J1627, EN 14624:2012, EG 2004/108/EG |
| Sensor Lifetime | Approx. 80–100 h (≈1 year typical) |
| Operating Temperature | −18 to +50 °C |
| Operating Humidity | 20 to 80 %RH |
| Storage Temperature | 0 to +50 °C |
| Battery | 2× D cells; 16 h continuous operation |
| Weight | Approx. 500 g including batteries |
| Indication | LED leakage indicator with simultaneous audible alarm |
| Zeroing | Automatic zeroing; ready immediately after power-on |
| Order Number | 0563 3163 |
| Measuring Parameter | g/a leak rate |