TO81V

TO81V analyzer — zirconia O₂ sensor probe + Type-K thermocouple

In-Oven Residual Oxygen & Atmosphere Analyzer / 炉内残氧环境分析仪

TO81V Residual Oxygen Analyzer

精密炉内残氧 & 环境分析仪

Professional, simple, intelligent, reliable. The TO81V travels with the PCB into the oven and synchronously records temperature, oxygen concentration and rail vibration — capturing real in-oven data at every zone and time point to optimize atmosphere control, raise solder yield and cut nitrogen cost.

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At a glance

Synchronously measures temperature, in-oven O₂ and rail vibration on one time axis
Zirconia oxygen sensor, 0–10,000 ppm range, T90 response < 30 s
Ultra-thin 60 × 205 × 17 mm body, ~950 g — heat-resistant for the oven
~60-minute battery life, Type-C 5V/2A charging, USB data export

O₂ range

0–10,000 ppm

Sensor

Zirconia

T90 response

< 30 s

Measures

Temp · O₂ · Vib

Overview

See what really happens inside the oven

The TO81V is a precise in-oven residual-oxygen and environment analyzer that rides into the oven alongside the PCB. Integrating a zirconia oxygen sensor and a Type-K thermocouple, it records temperature, oxygen concentration and rail vibration in real time and synchronously, generating analysis curves.

By capturing the true in-oven data at each thermal zone and time point, it provides the basis for atmosphere control and solder-parameter optimization — shortening defect troubleshooting, raising soldering yield, and lowering cost through precise nitrogen-flow control. The body withstands the in-oven environment and operation is straightforward.

Features

Three measurements, one pass

Synchronous temperature / oxygen / vibration measurement, traveling with the PCB
Full dynamic tracking — captures data at every zone and time point
Process-optimization core: real O₂, temperature and vibration to tune atmosphere & parameters
Zirconia oxygen sensor, 0–10,000 ppm range, T90 response < 30 s
Ultra-thin 60 × 205 × 17 mm body, ~950 g (incl. core parts)
Rechargeable lithium battery, ~60 min runtime, Type-C 5V/2A charging
USB communication — view / export data for reporting and traceability
Reliable & convenient — withstands the oven environment, simple to operate

Specifications

Technical parameters

Model	TO81V
Sensor	Zirconia oxygen sensor / Type-K thermocouple
Measuring range	0 ~ 10,000 ppm / -100 ℃ ~ 480 ℃
Accuracy	0–99 ppm ±10 ppm; 100–999 ppm ±2.5% F.S; 100–10,000 ppm ±2.5% F.S / ±0.5 ℃, 5%
Sampling rate	0.1 s ~ 10.0 s, settable
T90 response time	< 30 s
Dimensions	60 (W) × 205 (D) × 17 (H) mm; ~950 g (incl. core parts)
Battery life	~60 minutes
Power supply	Rechargeable lithium battery
Charging interface	Type-C 5V/2A
Communication	USB

Specifications per manufacturer datasheet TO81V V2.5. Subject to change without notice.

Datasheets

PDF

TO81V Residual Oxygen Analyzer V2.5 (EN)

English-language datasheet

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PDF

TO81V 精密炉内残氧 & 环境分析仪 V2.5 (CN)

Chinese-language datasheet

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Companion software

Temp, oxygen & vibration on one axis

The host software reads data over USB and generates temperature-oxygen curves and vibration curves: it overlays multi-probe temperature, in-oven oxygen (ppm) and rail-vibration on a single time axis, annotates key temperatures such as liquidus and peak, and supports per-zone oxygen and vibration comparison, curve viewing and export — for solder-defect diagnosis, atmosphere-control optimization and quality traceability.

TO81V synchronized temperature and oxygen curve — Synchronized temperature and oxygen-concentration curves expose atmosphere drift per zone.

TO81V rail vibration curve — Rail vibration on the same time axis links mechanical disturbance to defects.

Applications

Where it earns its keep

Defect analysis

Correlate oxygen fluctuation, temperature and rail vibration with soldering problems — oxidation, bridging, shift, dropped components — to shorten troubleshooting and add analysis dimensions.

Process optimization

Use real in-oven oxygen, product temperature and vibration curves to optimize atmosphere control and per-zone O₂ setpoints — improving wetting, reducing defects and raising yield.

Cost reduction

Precisely regulate nitrogen flow in each thermal zone to avoid waste while still holding atmosphere quality.

Data traceability

Record temperature, oxygen and vibration curves with view / export support for reporting and full traceability.